diff --git a/include/records.hrl b/include/records.hrl
index f8bcfd0..99865d2 100755
--- a/include/records.hrl
+++ b/include/records.hrl
@@ -78,7 +78,9 @@
   expires_at    :: calendar:datetime(),
   revoked       :: boolean(),
   created_at    :: calendar:datetime(),
-  updated_at    :: calendar:datetime()
+  updated_at    :: calendar:datetime(),
+  device_name   :: binary(),
+  user_agent    :: binary()
 }).
 
 %% ------------------- Календари ---------------------------------------
diff --git a/src/core/core_auth_session.erl b/src/core/core_auth_session.erl
index 864d26e..96f3f6d 100755
--- a/src/core/core_auth_session.erl
+++ b/src/core/core_auth_session.erl
@@ -6,17 +6,30 @@
 -module(core_auth_session).
 -include("records.hrl").
 -include_lib("stdlib/include/ms_transform.hrl").
--export([create/3, get/1, rotate/2, revoke/1, revoke_family/1, revoke_all_for_subject/2]).
+-export([
+  create/3, create/5, get/1, rotate/2, revoke/1, revoke_family/1,
+  revoke_all_for_subject/2, list_active_for_subject/2, revoke_others_for_subject/3
+]).
 
 -define(REFRESH_TTL_SECONDS, 30 * 24 * 3600).
 
 %%%-------------------------------------------------------------------
-%%% @doc Создать новую сессию устройства/клиента.
+%%% @doc Создать новую сессию устройства/клиента (без device meta).
 %%% @end
 %%%-------------------------------------------------------------------
 -spec create(SubjectId :: binary(), SubjectType :: user | admin, ClientType :: binary()) ->
   {ok, #auth_session{}}.
 create(SubjectId, SubjectType, ClientType) ->
+  create(SubjectId, SubjectType, ClientType, <<>>, <<>>).
+
+%%%-------------------------------------------------------------------
+%%% @doc Создать сессию с device_name и user_agent.
+%%% @end
+%%%-------------------------------------------------------------------
+-spec create(SubjectId :: binary(), SubjectType :: user | admin, ClientType :: binary(),
+             DeviceName :: binary(), UserAgent :: binary()) ->
+  {ok, #auth_session{}}.
+create(SubjectId, SubjectType, ClientType, DeviceName, UserAgent) ->
   Now = calendar:universal_time(),
   ExpiresAt = calendar:gregorian_seconds_to_datetime(
     calendar:datetime_to_gregorian_seconds(Now) + ?REFRESH_TTL_SECONDS
@@ -31,7 +44,9 @@ create(SubjectId, SubjectType, ClientType) ->
     expires_at   = ExpiresAt,
     revoked      = false,
     created_at   = Now,
-    updated_at   = Now
+    updated_at   = Now,
+    device_name  = DeviceName,
+    user_agent   = UserAgent
   },
   %% Transaction ensures atomic write of the new session record.
   case mnesia:transaction(fun() -> mnesia:write(Session) end) of
@@ -169,6 +184,56 @@ revoke_all_for_subject(SubjectId, SubjectType) ->
       {error, transaction_failed}
   end.
 
+%%%-------------------------------------------------------------------
+%%% @doc Активные (не revoked, не expired) сессии субъекта.
+%%% @end
+%%%-------------------------------------------------------------------
+-spec list_active_for_subject(SubjectId :: binary(), SubjectType :: user | admin) ->
+  [#auth_session{}].
+list_active_for_subject(SubjectId, SubjectType) ->
+  Now = calendar:universal_time(),
+  MS = ets:fun2ms(fun(#auth_session{subject_id = Sid} = S)
+                       when Sid =:= SubjectId -> S end),
+  Sessions = mnesia:dirty_select(auth_session, MS),
+  lists:filter(fun(S) ->
+    S#auth_session.subject_type =:= SubjectType andalso
+      S#auth_session.revoked =:= false andalso
+      S#auth_session.expires_at > Now
+  end, Sessions).
+
+%%%-------------------------------------------------------------------
+%%% @doc Отозвать все активные сессии субъекта, кроме KeepSessionId.
+%%% @end
+%%%-------------------------------------------------------------------
+-spec revoke_others_for_subject(SubjectId :: binary(), SubjectType :: user | admin,
+                                KeepSessionId :: binary()) ->
+  {ok, non_neg_integer()} | {error, transaction_failed}.
+revoke_others_for_subject(SubjectId, SubjectType, KeepSessionId) ->
+  F = fun() ->
+    MS = ets:fun2ms(fun(#auth_session{subject_id = Sid} = S)
+                         when Sid =:= SubjectId -> S end),
+    Sessions = mnesia:select(auth_session, MS, write),
+    Now = calendar:universal_time(),
+    lists:foldl(fun(Session, Acc) ->
+      case Session#auth_session.subject_type =:= SubjectType andalso
+           Session#auth_session.revoked =:= false andalso
+           Session#auth_session.session_id =/= KeepSessionId of
+        true ->
+          mnesia:write(Session#auth_session{revoked = true, updated_at = Now}),
+          Acc + 1;
+        false ->
+          Acc
+      end
+    end, 0, Sessions)
+  end,
+  case mnesia:transaction(F) of
+    {atomic, Count} ->
+      lists:foreach(fun(_) -> dec_counter(SubjectType) end, lists:seq(1, Count)),
+      {ok, Count};
+    {aborted, _Reason} ->
+      {error, transaction_failed}
+  end.
+
 %%%===================================================================
 %%% Internal
 %%%===================================================================
diff --git a/src/eventhub_app.erl b/src/eventhub_app.erl
index f39767b..c14c3e2 100755
--- a/src/eventhub_app.erl
+++ b/src/eventhub_app.erl
@@ -91,6 +91,9 @@ start_http() ->
       {"/v1/login", handler_login, []},
       {"/v1/refresh", handler_refresh, []},
       {"/v1/logout", handler_logout, []},
+      {"/v1/sessions", handler_sessions, []},
+      {"/v1/sessions/revoke-others", handler_sessions, []},
+      {"/v1/sessions/:id", handler_sessions, []},
       {"/v1/user/me", handler_user_me, []},
       {"/v1/user/me/avatar", handler_user_avatar, []},
       {"/v1/notifications/prefs", handler_notification_prefs, []},
diff --git a/src/handlers/admin/admin_handler_login.erl b/src/handlers/admin/admin_handler_login.erl
index b7de801..bf5593c 100644
--- a/src/handlers/admin/admin_handler_login.erl
+++ b/src/handlers/admin/admin_handler_login.erl
@@ -22,7 +22,7 @@ init(Req0, _State) ->
                 {ok, _Token, User} ->
                   UserId = maps:get(id, User),
                   Role = maps:get(role, User),
-                  {ok, Token, RefreshToken} = logic_auth_session:issue_admin_tokens(UserId, Role),
+                  {ok, Token, RefreshToken, SessionId} = logic_auth_session:issue_admin_tokens(UserId, Role),
                   core_admin:update_last_login(UserId),
                   % Аудит успешного входа
                   admin_utils:log_admin_action(UserId, <<"login">>, <<"admin">>, Email, <<>>, Req1),
@@ -33,7 +33,8 @@ init(Req0, _State) ->
                       <<"email">> => maps:get(email, User),
                       <<"role">> => maps:get(role, User)
                     },
-                    <<"refresh_token">> => RefreshToken
+                    <<"refresh_token">> => RefreshToken,
+                    <<"session_id">> => SessionId
                   },
                   handler_utils:send_json(Req1, 200, Resp);
                 {error, insufficient_permissions} ->
diff --git a/src/handlers/admin/admin_handler_refresh.erl b/src/handlers/admin/admin_handler_refresh.erl
index a476ce7..de7ace4 100644
--- a/src/handlers/admin/admin_handler_refresh.erl
+++ b/src/handlers/admin/admin_handler_refresh.erl
@@ -71,10 +71,11 @@ refresh(Req) ->
   try jsx:decode(Body, [return_maps]) of
     #{<<"refresh_token">> := RefreshToken} ->
       case logic_auth_session:refresh_admin(RefreshToken) of
-        {ok, NewToken, NewRefreshToken} ->
+        {ok, NewToken, NewRefreshToken, SessionId} ->
           handler_utils:send_json(Req1, 200, #{
             token => NewToken,
-            refresh_token => NewRefreshToken
+            refresh_token => NewRefreshToken,
+            session_id => SessionId
           });
         {error, reuse_detected} ->
           handler_utils:send_error(Req1, 401, <<"Refresh token reuse detected">>);
diff --git a/src/handlers/handler_login.erl b/src/handlers/handler_login.erl
index 8cea354..ff865a7 100644
--- a/src/handlers/handler_login.erl
+++ b/src/handlers/handler_login.erl
@@ -32,8 +32,10 @@ trails() ->
           type       => object,
           required   => [<<"email">>, <<"password">>],
           properties => #{
-            email    => #{type => string, format => <<"email">>},
-            password => #{type => string, format => <<"password">>}
+            email => #{type => string, format => <<"email">>},
+            password => #{type => string, format => <<"password">>},
+            client_type => #{type => string, enum => [<<"web">>, <<"mobile">>]},
+            device_name => #{type => string}
           }
         }}}
       },
@@ -69,23 +71,35 @@ login(Req) ->
           handler_utils:send_error(Req1, 400, <<"Empty request body">>);
         _ ->
           try jsx:decode(Body, [return_maps]) of
-            #{<<"email">> := Email, <<"password">> := Password} ->
+            #{<<"email">> := Email, <<"password">> := Password} = Map ->
+              ClientType = maps:get(<<"client_type">>, Map, <<"web">>),
+              DeviceName = maps:get(<<"device_name">>, Map, <<>>),
+              UserAgent = case cowboy_req:header(<<"user-agent">>, Req1) of
+                undefined -> <<>>;
+                UA -> UA
+              end,
               case eventhub_auth:authenticate_user_request(Req1, Email, Password) of
                 {ok, _Token, User} ->
                   UserId = maps:get(id, User),
                   Role = maps:get(role, User),
-                  {ok, Token, RefreshToken} = logic_auth_session:issue_user_tokens(UserId, Role),
-                  core_user:update_last_login(UserId),
-                  Response = #{
-                    <<"token">>         => Token,
-                    <<"user">>          => #{
-                      <<"id">>    => UserId,
-                      <<"email">> => maps:get(email, User),
-                      <<"role">>  => maps:get(role, User)
-                    },
-                    <<"refresh_token">> => RefreshToken
-                  },
-                  handler_utils:send_json(Req1, 200, Response);
+                  case logic_auth_session:issue_user_tokens(
+                         UserId, Role, ClientType, DeviceName, UserAgent) of
+                    {ok, Token, RefreshToken, SessionId} ->
+                      core_user:update_last_login(UserId),
+                      Response = #{
+                        <<"token">>         => Token,
+                        <<"user">>          => #{
+                          <<"id">>    => UserId,
+                          <<"email">> => maps:get(email, User),
+                          <<"role">>  => maps:get(role, User)
+                        },
+                        <<"refresh_token">> => RefreshToken,
+                        <<"session_id">>    => SessionId
+                      },
+                      handler_utils:send_json(Req1, 200, Response);
+                    {error, invalid_client_type} ->
+                      handler_utils:send_error(Req1, 400, <<"Invalid client_type">>)
+                  end;
                 {error, not_verified} ->
                   handler_utils:send_error(Req1, 403, <<"Account not verified">>);
                 {error, frozen} ->
@@ -103,4 +117,4 @@ login(Req) ->
       end;
     false ->
       handler_utils:send_error(Req, 400, <<"Missing request body">>)
-  end.
\ No newline at end of file
+  end.
diff --git a/src/handlers/handler_refresh.erl b/src/handlers/handler_refresh.erl
index bd6ac39..959001e 100644
--- a/src/handlers/handler_refresh.erl
+++ b/src/handlers/handler_refresh.erl
@@ -57,7 +57,8 @@ token_pair_schema() ->
     type => object,
     properties => #{
       token => #{type => string, description => <<"JWT access token">>},
-      refresh_token => #{type => string, description => <<"Refresh token">>}
+      refresh_token => #{type => string, description => <<"Refresh token">>},
+      session_id => #{type => string, description => <<"auth_session id">>}
     }
   }.
 
@@ -72,10 +73,11 @@ refresh(Req) ->
   try jsx:decode(Body, [return_maps]) of
     #{<<"refresh_token">> := RefreshToken} ->
       case logic_auth_session:refresh_user(RefreshToken) of
-        {ok, NewToken, NewRefreshToken} ->
+        {ok, NewToken, NewRefreshToken, SessionId} ->
           handler_utils:send_json(Req1, 200, #{
             token => NewToken,
-            refresh_token => NewRefreshToken
+            refresh_token => NewRefreshToken,
+            session_id => SessionId
           });
         {error, reuse_detected} ->
           handler_utils:send_error(Req1, 401, <<"Refresh token reuse detected">>);
diff --git a/src/handlers/handler_sessions.erl b/src/handlers/handler_sessions.erl
new file mode 100644
index 0000000..fce8195
--- /dev/null
+++ b/src/handlers/handler_sessions.erl
@@ -0,0 +1,131 @@
+%%%-------------------------------------------------------------------
+%%% @doc User session list / revoke (Back#74).
+%%% GET    /v1/sessions
+%%% DELETE /v1/sessions/:id
+%%% POST   /v1/sessions/revoke-others
+%%% @end
+%%%-------------------------------------------------------------------
+-module(handler_sessions).
+-behaviour(cowboy_handler).
+
+-export([init/2, trails/0]).
+
+-include("records.hrl").
+
+-spec init(cowboy_req:req(), any()) -> {ok, cowboy_req:req(), any()}.
+init(Req, Opts) ->
+  Method = cowboy_req:method(Req),
+  case handler_utils:auth_user(Req) of
+    {ok, UserId, Req1} ->
+      case Method of
+        <<"GET">> ->
+          list_sessions(Req1, UserId);
+        <<"POST">> ->
+          case cowboy_req:path(Req1) of
+            <<"/v1/sessions/revoke-others">> ->
+              revoke_others(Req1, UserId);
+            _ ->
+              handler_utils:send_error(Req1, 405, <<"Method not allowed">>)
+          end;
+        <<"DELETE">> ->
+          SessionId = cowboy_req:binding(id, Req1),
+          revoke_one(Req1, UserId, SessionId);
+        _ ->
+          handler_utils:send_error(Req1, 405, <<"Method not allowed">>)
+      end;
+    {error, Code, Message, Req1} ->
+      handler_utils:send_error(Req1, Code, Message)
+  end,
+  {ok, Req, Opts}.
+
+-spec trails() -> [map()].
+trails() ->
+  [
+    #{
+      path => <<"/v1/sessions">>,
+      method => <<"GET">>,
+      description => <<"List active user sessions">>,
+      tags => [<<"Auth">>],
+      responses => #{
+        200 => #{description => <<"Session list">>},
+        401 => #{description => <<"Unauthorized">>}
+      }
+    },
+    #{
+      path => <<"/v1/sessions/:id">>,
+      method => <<"DELETE">>,
+      description => <<"Revoke one own session">>,
+      tags => [<<"Auth">>],
+      responses => #{
+        200 => #{description => <<"Revoked">>},
+        401 => #{description => <<"Unauthorized">>},
+        404 => #{description => <<"Not found">>}
+      }
+    },
+    #{
+      path => <<"/v1/sessions/revoke-others">>,
+      method => <<"POST">>,
+      description => <<"Revoke all sessions except current (from refresh_token)">>,
+      tags => [<<"Auth">>],
+      requestBody => #{
+        required => true,
+        content => #{
+          <<"application/json">> => #{
+            schema => #{
+              type => object,
+              required => [<<"refresh_token">>],
+              properties => #{refresh_token => #{type => string}}
+            }
+          }
+        }
+      },
+      responses => #{
+        200 => #{description => <<"Others revoked">>},
+        400 => #{description => <<"Bad request">>},
+        401 => #{description => <<"Unauthorized">>}
+      }
+    }
+  ].
+
+list_sessions(Req, UserId) ->
+  Items = [session_to_json(S) || S <- logic_auth_session:list_user_sessions(UserId)],
+  handler_utils:send_json(Req, 200, #{<<"sessions">> => Items}).
+
+revoke_one(Req, UserId, SessionId) when is_binary(SessionId), SessionId =/= <<>> ->
+  case logic_auth_session:revoke_user_session(UserId, SessionId) of
+    ok ->
+      handler_utils:send_json(Req, 200, #{<<"ok">> => true});
+    {error, not_found} ->
+      handler_utils:send_error(Req, 404, <<"Session not found">>)
+  end;
+revoke_one(Req, _UserId, _) ->
+  handler_utils:send_error(Req, 404, <<"Session not found">>).
+
+revoke_others(Req0, UserId) ->
+  {ok, Body, Req} = cowboy_req:read_body(Req0),
+  try jsx:decode(Body, [return_maps]) of
+    #{<<"refresh_token">> := RefreshToken} ->
+      case logic_auth_session:revoke_other_user_sessions(UserId, RefreshToken) of
+        {ok, Count} ->
+          handler_utils:send_json(Req, 200, #{<<"ok">> => true, <<"revoked">> => Count});
+        {error, forbidden} ->
+          handler_utils:send_error(Req, 403, <<"Refresh token subject mismatch">>);
+        {error, _} ->
+          handler_utils:send_error(Req, 401, <<"Invalid refresh token">>)
+      end;
+    _ ->
+      handler_utils:send_error(Req, 400, <<"Missing refresh_token field">>)
+  catch
+    _:_ -> handler_utils:send_error(Req, 400, <<"Invalid JSON">>)
+  end.
+
+session_to_json(#auth_session{} = S) ->
+  #{
+    <<"session_id">> => S#auth_session.session_id,
+    <<"client_type">> => S#auth_session.client_type,
+    <<"device_name">> => S#auth_session.device_name,
+    <<"user_agent">> => S#auth_session.user_agent,
+    <<"created_at">> => handler_utils:datetime_to_iso8601(S#auth_session.created_at),
+    <<"updated_at">> => handler_utils:datetime_to_iso8601(S#auth_session.updated_at),
+    <<"expires_at">> => handler_utils:datetime_to_iso8601(S#auth_session.expires_at)
+  }.
diff --git a/src/infra/migration_engine.erl b/src/infra/migration_engine.erl
index 2a098a7..3b80305 100755
--- a/src/infra/migration_engine.erl
+++ b/src/infra/migration_engine.erl
@@ -31,7 +31,8 @@
   '20260730120000_recurrence_exception_bag',
   '20260814193000_waitlist_entry',
   '20260815200000_push_subscription',
-  '20260815220000_calendar_share_invite'
+  '20260815220000_calendar_share_invite',
+  '20260816180000_auth_session_device'
 ]).
 
 %% ------------------------------
diff --git a/src/logic/logic_auth_session.erl b/src/logic/logic_auth_session.erl
index 1556d27..cb596df 100644
--- a/src/logic/logic_auth_session.erl
+++ b/src/logic/logic_auth_session.erl
@@ -5,55 +5,133 @@
 %%%-------------------------------------------------------------------
 -module(logic_auth_session).
 -include("records.hrl").
--export([issue_admin_tokens/2, refresh_admin/1, logout_admin/1,
-  issue_user_tokens/2, refresh_user/1, logout_user/1]).
+-export([
+  issue_admin_tokens/2, refresh_admin/1, logout_admin/1,
+  issue_user_tokens/2, issue_user_tokens/5, refresh_user/1, logout_user/1,
+  list_user_sessions/1, revoke_user_session/2, revoke_other_user_sessions/2,
+  normalize_user_client_type/1, normalize_device_name/1
+]).
 
 -define(USER_CLIENT_WEB, <<"web">>).
+-define(USER_CLIENT_MOBILE, <<"mobile">>).
+-define(DEVICE_NAME_MAX, 120).
 
 %%%-------------------------------------------------------------------
 %%% Admin (фаза 1)
 %%%-------------------------------------------------------------------
 
 -spec issue_admin_tokens(AdminId :: binary(), Role :: binary()) ->
-  {ok, AccessToken :: binary(), RefreshToken :: binary()}.
+  {ok, AccessToken :: binary(), RefreshToken :: binary(), SessionId :: binary()}.
 issue_admin_tokens(AdminId, Role) ->
-  issue_tokens(AdminId, admin, <<"admin">>, Role, fun eventhub_auth:generate_admin_token/2,
+  issue_tokens(AdminId, admin, <<"admin">>, <<>>, <<>>, Role,
+    fun eventhub_auth:generate_admin_token/2,
     fun eventhub_auth:generate_admin_refresh_token/5).
 
 -spec refresh_admin(RefreshToken :: binary()) ->
-  {ok, AccessToken :: binary(), NewRefreshToken :: binary()} |
+  {ok, AccessToken :: binary(), NewRefreshToken :: binary(), SessionId :: binary()} |
   {error, atom()}.
 refresh_admin(RefreshToken) ->
   refresh_subject(RefreshToken, fun eventhub_auth:verify_admin_refresh_token/1,
     fun core_admin:get_by_id/1, admin, fun eventhub_auth:generate_admin_token/2,
-    fun eventhub_auth:generate_admin_refresh_token/5, <<"admin">>).
+    fun eventhub_auth:generate_admin_refresh_token/5).
 
 -spec logout_admin(RefreshToken :: binary()) -> ok | {error, atom()}.
 logout_admin(RefreshToken) ->
   logout_subject(RefreshToken, fun eventhub_auth:verify_admin_refresh_token/1).
 
 %%%-------------------------------------------------------------------
-%%% User (фаза 2)
+%%% User (фаза 2 / 3)
 %%%-------------------------------------------------------------------
 
 -spec issue_user_tokens(UserId :: binary(), Role :: binary()) ->
-  {ok, AccessToken :: binary(), RefreshToken :: binary()}.
+  {ok, AccessToken :: binary(), RefreshToken :: binary(), SessionId :: binary()}.
 issue_user_tokens(UserId, Role) ->
-  issue_tokens(UserId, user, ?USER_CLIENT_WEB, Role, fun eventhub_auth:generate_user_token/2,
-    fun eventhub_auth:generate_user_refresh_token/5).
+  issue_user_tokens(UserId, Role, ?USER_CLIENT_WEB, <<>>, <<>>).
+
+-spec issue_user_tokens(UserId :: binary(), Role :: binary(),
+                        ClientType :: binary(), DeviceName :: binary(),
+                        UserAgent :: binary()) ->
+  {ok, AccessToken :: binary(), RefreshToken :: binary(), SessionId :: binary()} |
+  {error, invalid_client_type}.
+issue_user_tokens(UserId, Role, ClientType0, DeviceName0, UserAgent0) ->
+  case normalize_user_client_type(ClientType0) of
+    {ok, ClientType} ->
+      DeviceName = normalize_device_name(DeviceName0),
+      UserAgent = case UserAgent0 of
+        U when is_binary(U) -> U;
+        _ -> <<>>
+      end,
+      issue_tokens(UserId, user, ClientType, DeviceName, UserAgent, Role,
+        fun eventhub_auth:generate_user_token/2,
+        fun eventhub_auth:generate_user_refresh_token/5);
+    {error, _} = Err ->
+      Err
+  end.
 
 -spec refresh_user(RefreshToken :: binary()) ->
-  {ok, AccessToken :: binary(), NewRefreshToken :: binary()} |
+  {ok, AccessToken :: binary(), NewRefreshToken :: binary(), SessionId :: binary()} |
   {error, atom()}.
 refresh_user(RefreshToken) ->
   refresh_subject(RefreshToken, fun eventhub_auth:verify_user_refresh_token/1,
     fun core_user:get_by_id/1, user, fun eventhub_auth:generate_user_token/2,
-    fun eventhub_auth:generate_user_refresh_token/5, ?USER_CLIENT_WEB).
+    fun eventhub_auth:generate_user_refresh_token/5).
 
 -spec logout_user(RefreshToken :: binary()) -> ok | {error, atom()}.
 logout_user(RefreshToken) ->
   logout_subject(RefreshToken, fun eventhub_auth:verify_user_refresh_token/1).
 
+-spec list_user_sessions(UserId :: binary()) -> [#auth_session{}].
+list_user_sessions(UserId) ->
+  core_auth_session:list_active_for_subject(UserId, user).
+
+-spec revoke_user_session(UserId :: binary(), SessionId :: binary()) ->
+  ok | {error, not_found}.
+revoke_user_session(UserId, SessionId) ->
+  case core_auth_session:get(SessionId) of
+    {ok, #auth_session{subject_id = UserId, subject_type = user}} ->
+      core_auth_session:revoke(SessionId);
+    {ok, _} ->
+      {error, not_found};
+    {error, not_found} ->
+      {error, not_found}
+  end.
+
+-spec revoke_other_user_sessions(UserId :: binary(), RefreshToken :: binary()) ->
+  {ok, non_neg_integer()} | {error, atom()}.
+revoke_other_user_sessions(UserId, RefreshToken) ->
+  case eventhub_auth:verify_user_refresh_token(RefreshToken) of
+    {ok, Claims} ->
+      case maps:get(<<"sub">>, Claims) of
+        UserId ->
+          SessionId = maps:get(<<"sid">>, Claims),
+          core_auth_session:revoke_others_for_subject(UserId, user, SessionId);
+        _ ->
+          {error, forbidden}
+      end;
+    {error, _} = Err ->
+      Err
+  end.
+
+-spec normalize_user_client_type(term()) -> {ok, binary()} | {error, invalid_client_type}.
+normalize_user_client_type(undefined) -> {ok, ?USER_CLIENT_WEB};
+normalize_user_client_type(null) -> {ok, ?USER_CLIENT_WEB};
+normalize_user_client_type(<<>>) -> {ok, ?USER_CLIENT_WEB};
+normalize_user_client_type(?USER_CLIENT_WEB) -> {ok, ?USER_CLIENT_WEB};
+normalize_user_client_type(?USER_CLIENT_MOBILE) -> {ok, ?USER_CLIENT_MOBILE};
+normalize_user_client_type(<<"WEB">>) -> {ok, ?USER_CLIENT_WEB};
+normalize_user_client_type(<<"MOBILE">>) -> {ok, ?USER_CLIENT_MOBILE};
+normalize_user_client_type(_) -> {error, invalid_client_type}.
+
+-spec normalize_device_name(term()) -> binary().
+normalize_device_name(Name) when is_binary(Name) ->
+  Trimmed = string:trim(Name),
+  case byte_size(Trimmed) > ?DEVICE_NAME_MAX of
+    true -> binary:part(Trimmed, 0, ?DEVICE_NAME_MAX);
+    false -> Trimmed
+  end;
+normalize_device_name(_) ->
+  <<>>.
+
 %%%===================================================================
 %%% Internal
 %%%===================================================================
@@ -71,8 +149,9 @@ logout_subject(RefreshToken, VerifyFn) ->
       Err
   end.
 
-issue_tokens(SubjectId, SubjectType, ClientType, Role, GenAccess, GenRefresh) ->
-  {ok, Session} = core_auth_session:create(SubjectId, SubjectType, ClientType),
+issue_tokens(SubjectId, SubjectType, ClientType, DeviceName, UserAgent, Role, GenAccess, GenRefresh) ->
+  {ok, Session} = core_auth_session:create(
+    SubjectId, SubjectType, ClientType, DeviceName, UserAgent),
   AccessToken = GenAccess(SubjectId, Role),
   {RefreshToken, _} = GenRefresh(
     Session#auth_session.session_id,
@@ -81,28 +160,29 @@ issue_tokens(SubjectId, SubjectType, ClientType, Role, GenAccess, GenRefresh) ->
     SubjectId,
     ClientType
   ),
-  {ok, AccessToken, RefreshToken}.
+  {ok, AccessToken, RefreshToken, Session#auth_session.session_id}.
 
-refresh_subject(RefreshToken, VerifyFn, GetSubjectFn, SubjectType, GenAccess, GenRefresh, ClientType) ->
+refresh_subject(RefreshToken, VerifyFn, GetSubjectFn, SubjectType, GenAccess, GenRefresh) ->
   case VerifyFn(RefreshToken) of
     {ok, Claims} ->
-      do_refresh(Claims, GetSubjectFn, SubjectType, GenAccess, GenRefresh, ClientType);
+      do_refresh(Claims, GetSubjectFn, SubjectType, GenAccess, GenRefresh);
     Error ->
       Error
   end.
 
-do_refresh(Claims, GetSubjectFn, SubjectType, GenAccess, GenRefresh, ClientType) ->
+do_refresh(Claims, GetSubjectFn, SubjectType, GenAccess, GenRefresh) ->
   SessionId = maps:get(<<"sid">>, Claims),
   Jti = maps:get(<<"jti">>, Claims),
   SubjectId = maps:get(<<"sub">>, Claims),
   FamilyId = maps:get(<<"fid">>, Claims),
   case core_auth_session:rotate(SessionId, Jti) of
-    {ok, NewJti, _Session} ->
+    {ok, NewJti, Session} ->
       {ok, Subject} = GetSubjectFn(SubjectId),
       Role = subject_role(Subject, SubjectType),
+      ClientType = Session#auth_session.client_type,
       AccessToken = GenAccess(SubjectId, Role),
       {NewRefresh, _} = GenRefresh(SessionId, FamilyId, NewJti, SubjectId, ClientType),
-      {ok, AccessToken, NewRefresh};
+      {ok, AccessToken, NewRefresh, SessionId};
     {error, reuse_detected} ->
       core_auth_session:revoke_family(FamilyId),
       {error, reuse_detected};
diff --git a/src/migrations/20260816180000_auth_session_device.erl b/src/migrations/20260816180000_auth_session_device.erl
new file mode 100644
index 0000000..a4073c6
--- /dev/null
+++ b/src/migrations/20260816180000_auth_session_device.erl
@@ -0,0 +1,45 @@
+%% @doc Add device_name and user_agent to auth_session (Back#74).
+-module('20260816180000_auth_session_device').
+
+-export([up/0, down/0]).
+
+-include("records.hrl").
+
+up() ->
+  case table_exists(auth_session) of
+    false ->
+      ok;
+    true ->
+      ensure_device_fields(),
+      ok
+  end.
+
+down() ->
+  ok.
+
+table_exists(Table) ->
+  try lists:member(Table, mnesia:system_info(tables))
+  catch
+    _:_ -> false
+  end.
+
+ensure_device_fields() ->
+  Attrs = mnesia:table_info(auth_session, attributes),
+  case lists:member(device_name, Attrs) andalso lists:member(user_agent, Attrs) of
+    true ->
+      ok;
+    false ->
+      Fun = fun(Rec) ->
+        case tuple_size(Rec) of
+          %% auth_session atom + 10 fields (pre-device)
+          11 ->
+            list_to_tuple(tuple_to_list(Rec) ++ [<<>>, <<>>]);
+          _ ->
+            Rec
+        end
+      end,
+      case mnesia:transform_table(auth_session, Fun, record_info(fields, auth_session)) of
+        {atomic, ok} -> ok;
+        {aborted, Reason} -> error({transform_auth_session_failed, Reason})
+      end
+  end.
diff --git a/src/swagger/eventhub_trails.erl b/src/swagger/eventhub_trails.erl
index 188e73d..def1d49 100755
--- a/src/swagger/eventhub_trails.erl
+++ b/src/swagger/eventhub_trails.erl
@@ -71,6 +71,7 @@ user() ->
     handler_login,
     handler_refresh,
     handler_logout,
+    handler_sessions,
     handler_verify,
     handler_forgot_password,
     handler_reset_password,
diff --git a/test/unit/admin_handler_refresh_tests.erl b/test/unit/admin_handler_refresh_tests.erl
index 7d6a485..10e716c 100644
--- a/test/unit/admin_handler_refresh_tests.erl
+++ b/test/unit/admin_handler_refresh_tests.erl
@@ -31,7 +31,7 @@ admin_refresh_test_() ->
   ]}.
 
 test_refresh_ok() ->
-  {ok, _Access, Refresh} = logic_auth_session:issue_admin_tokens(?ADMIN_ID, <<"admin">>),
+  {ok, _Access, Refresh, _} = logic_auth_session:issue_admin_tokens(?ADMIN_ID, <<"admin">>),
   {Status, _, Body} = eh_test_support:call(admin_handler_refresh, #{
     method => <<"POST">>,
     path => <<"/v1/admin/refresh">>,
diff --git a/test/unit/core_auth_session_tests.erl b/test/unit/core_auth_session_tests.erl
index 1036f3f..ae59f41 100644
--- a/test/unit/core_auth_session_tests.erl
+++ b/test/unit/core_auth_session_tests.erl
@@ -28,9 +28,11 @@ cleanup(_) ->
 core_auth_session_test_() ->
   {foreach, fun setup/0, fun cleanup/1, [
     {"Create session", fun test_create/0},
+    {"Create with device", fun test_create_device/0},
     {"Rotate session updates jti", fun test_rotate/0},
     {"Reuse detection", fun test_reuse/0},
-    {"Revoke family", fun test_revoke_family/0}
+    {"Revoke family", fun test_revoke_family/0},
+    {"List active and revoke others", fun test_list_and_revoke_others/0}
   ]}.
 
 test_create() ->
@@ -38,9 +40,16 @@ test_create() ->
   ?assertEqual(<<"admin1">>, Session#auth_session.subject_id),
   ?assertEqual(admin, Session#auth_session.subject_type),
   ?assertEqual(false, Session#auth_session.revoked),
+  ?assertEqual(<<>>, Session#auth_session.device_name),
   {ok, Loaded} = core_auth_session:get(Session#auth_session.session_id),
   ?assertEqual(Session#auth_session.session_id, Loaded#auth_session.session_id).
 
+test_create_device() ->
+  {ok, Session} = core_auth_session:create(
+    <<"u1">>, user, <<"web">>, <<"Chrome · Win">>, <<"Mozilla">>),
+  ?assertEqual(<<"Chrome · Win">>, Session#auth_session.device_name),
+  ?assertEqual(<<"Mozilla">>, Session#auth_session.user_agent).
+
 test_rotate() ->
   {ok, Session} = core_auth_session:create(<<"admin1">>, admin, <<"admin">>),
   OldJti = Session#auth_session.current_jti,
@@ -61,3 +70,16 @@ test_revoke_family() ->
   ok = core_auth_session:revoke_family(S1#auth_session.family_id),
   ?assertMatch({error, revoked},
     core_auth_session:rotate(S1#auth_session.session_id, S1#auth_session.current_jti)).
+
+test_list_and_revoke_others() ->
+  {ok, Keep} = core_auth_session:create(<<"u1">>, user, <<"web">>, <<"A">>, <<"ua">>),
+  {ok, Other} = core_auth_session:create(<<"u1">>, user, <<"mobile">>, <<"B">>, <<"ub">>),
+  Active = core_auth_session:list_active_for_subject(<<"u1">>, user),
+  ?assertEqual(2, length(Active)),
+  {ok, 1} = core_auth_session:revoke_others_for_subject(
+    <<"u1">>, user, Keep#auth_session.session_id),
+  Left = core_auth_session:list_active_for_subject(<<"u1">>, user),
+  ?assertEqual(1, length(Left)),
+  ?assertEqual(Keep#auth_session.session_id, (hd(Left))#auth_session.session_id),
+  {ok, Revoked} = core_auth_session:get(Other#auth_session.session_id),
+  ?assertEqual(true, Revoked#auth_session.revoked).
diff --git a/test/unit/infra_cleanup_tests.erl b/test/unit/infra_cleanup_tests.erl
index cf34223..9eb0c1e 100644
--- a/test/unit/infra_cleanup_tests.erl
+++ b/test/unit/infra_cleanup_tests.erl
@@ -110,7 +110,9 @@ write_auth_session(Id, Revoked, ExpiresAt, CreatedAt) ->
     expires_at = ExpiresAt,
     revoked = Revoked,
     created_at = CreatedAt,
-    updated_at = CreatedAt
+    updated_at = CreatedAt,
+    device_name = <<>>,
+    user_agent = <<>>
   }).
 
 write_admin_audit(Id, Timestamp) ->
diff --git a/test/unit/logic_auth_session_tests.erl b/test/unit/logic_auth_session_tests.erl
index 8410528..6409f68 100644
--- a/test/unit/logic_auth_session_tests.erl
+++ b/test/unit/logic_auth_session_tests.erl
@@ -39,7 +39,9 @@ logic_auth_session_test_() ->
     {"Issue and refresh user tokens", {timeout, 120, fun test_issue_and_refresh_user/0}},
     {"Refresh user reuse revokes family", {timeout, 120, fun test_user_reuse_revokes/0}},
     {"Logout user then refresh fails", {timeout, 120, fun test_logout_user/0}},
-    {"Logout admin then refresh fails", {timeout, 120, fun test_logout_admin/0}}
+    {"Logout admin then refresh fails", {timeout, 120, fun test_logout_admin/0}},
+    {"Mobile device meta and list", {timeout, 120, fun test_mobile_device_and_list/0}},
+    {"Revoke others keeps current", {timeout, 120, fun test_revoke_others/0}}
   ]}.
 
 test_issue_and_refresh_admin() ->
@@ -54,10 +56,12 @@ test_issue_and_refresh_admin() ->
   ok = meck:expect(core_admin, get_by_id, fun(Id) ->
     ?assertEqual(AdminId, Id), {ok, Admin}
   end),
-  {ok, Access1, Refresh1} = logic_auth_session:issue_admin_tokens(AdminId, <<"superadmin">>),
+  {ok, Access1, Refresh1, Sid1} = logic_auth_session:issue_admin_tokens(AdminId, <<"superadmin">>),
   ?assert(is_binary(Access1)),
+  ?assert(is_binary(Sid1)),
   {ok, _, _} = eventhub_auth:verify_admin_token(Access1),
-  {ok, Access2, Refresh2} = logic_auth_session:refresh_admin(Refresh1),
+  {ok, Access2, Refresh2, Sid2} = logic_auth_session:refresh_admin(Refresh1),
+  ?assertEqual(Sid1, Sid2),
   ?assert(is_binary(Access2)),
   ?assertNotEqual(Refresh1, Refresh2),
   {ok, _, _} = eventhub_auth:verify_admin_token(Access2).
@@ -72,8 +76,8 @@ test_admin_reuse_revokes() ->
     created_at = undefined, updated_at = undefined
   },
   ok = meck:expect(core_admin, get_by_id, fun(_) -> {ok, Admin} end),
-  {ok, _, Refresh1} = logic_auth_session:issue_admin_tokens(AdminId, <<"admin">>),
-  {ok, _, Refresh2} = logic_auth_session:refresh_admin(Refresh1),
+  {ok, _, Refresh1, _} = logic_auth_session:issue_admin_tokens(AdminId, <<"admin">>),
+  {ok, _, Refresh2, _} = logic_auth_session:refresh_admin(Refresh1),
   ?assertMatch({error, reuse_detected}, logic_auth_session:refresh_admin(Refresh1)),
   ?assertMatch({error, revoked}, logic_auth_session:refresh_admin(Refresh2)).
 
@@ -89,13 +93,14 @@ test_issue_and_refresh_user() ->
   ok = meck:expect(core_user, get_by_id, fun(Id) ->
     ?assertEqual(UserId, Id), {ok, User}
   end),
-  {ok, Access1, Refresh1} = logic_auth_session:issue_user_tokens(UserId, <<"user">>),
+  {ok, Access1, Refresh1, Sid1} = logic_auth_session:issue_user_tokens(UserId, <<"user">>),
   ?assert(is_binary(Access1)),
   {ok, _, _} = eventhub_auth:verify_user_token(Access1),
   {ok, Claims} = eventhub_auth:verify_user_refresh_token(Refresh1),
   ?assertEqual(<<"user">>, maps:get(<<"aud">>, Claims)),
   ?assertEqual(<<"web">>, maps:get(<<"client">>, Claims)),
-  {ok, Access2, Refresh2} = logic_auth_session:refresh_user(Refresh1),
+  {ok, Access2, Refresh2, Sid2} = logic_auth_session:refresh_user(Refresh1),
+  ?assertEqual(Sid1, Sid2),
   ?assert(is_binary(Access2)),
   ?assertNotEqual(Refresh1, Refresh2),
   {ok, _, _} = eventhub_auth:verify_user_token(Access2).
@@ -110,8 +115,8 @@ test_user_reuse_revokes() ->
     created_at = undefined, updated_at = undefined
   },
   ok = meck:expect(core_user, get_by_id, fun(_) -> {ok, User} end),
-  {ok, _, Refresh1} = logic_auth_session:issue_user_tokens(UserId, <<"user">>),
-  {ok, _, Refresh2} = logic_auth_session:refresh_user(Refresh1),
+  {ok, _, Refresh1, _} = logic_auth_session:issue_user_tokens(UserId, <<"user">>),
+  {ok, _, Refresh2, _} = logic_auth_session:refresh_user(Refresh1),
   ?assertMatch({error, reuse_detected}, logic_auth_session:refresh_user(Refresh1)),
   ?assertMatch({error, revoked}, logic_auth_session:refresh_user(Refresh2)).
 
@@ -125,7 +130,7 @@ test_logout_user() ->
     created_at = undefined, updated_at = undefined
   },
   ok = meck:expect(core_user, get_by_id, fun(_) -> {ok, User} end),
-  {ok, _, Refresh} = logic_auth_session:issue_user_tokens(UserId, <<"user">>),
+  {ok, _, Refresh, _} = logic_auth_session:issue_user_tokens(UserId, <<"user">>),
   ?assertEqual(ok, logic_auth_session:logout_user(Refresh)),
   ?assertMatch({error, revoked}, logic_auth_session:refresh_user(Refresh)).
 
@@ -139,6 +144,51 @@ test_logout_admin() ->
     created_at = undefined, updated_at = undefined
   },
   ok = meck:expect(core_admin, get_by_id, fun(_) -> {ok, Admin} end),
-  {ok, _, Refresh} = logic_auth_session:issue_admin_tokens(AdminId, <<"admin">>),
+  {ok, _, Refresh, _} = logic_auth_session:issue_admin_tokens(AdminId, <<"admin">>),
   ?assertEqual(ok, logic_auth_session:logout_admin(Refresh)),
   ?assertMatch({error, revoked}, logic_auth_session:refresh_admin(Refresh)).
+
+test_mobile_device_and_list() ->
+  UserId = <<"usr_dev">>,
+  User = #user{
+    id = UserId, email = <<"d@test.com">>, role = user,
+    password_hash = <<>>, status = active, nickname = <<>>,
+    avatar_url = default, timezone = <<"UTC">>, language = <<"ru">>,
+    phone = <<>>, preferences = #{}, last_login = undefined,
+    created_at = undefined, updated_at = undefined
+  },
+  ok = meck:expect(core_user, get_by_id, fun(_) -> {ok, User} end),
+  LongName = list_to_binary(lists:duplicate(200, $x)),
+  {ok, _, Refresh, Sid} = logic_auth_session:issue_user_tokens(
+    UserId, <<"user">>, <<"mobile">>, LongName, <<"UA-Test">>),
+  {ok, Claims} = eventhub_auth:verify_user_refresh_token(Refresh),
+  ?assertEqual(<<"mobile">>, maps:get(<<"client">>, Claims)),
+  [S] = logic_auth_session:list_user_sessions(UserId),
+  ?assertEqual(Sid, S#auth_session.session_id),
+  ?assertEqual(<<"mobile">>, S#auth_session.client_type),
+  ?assertEqual(<<"UA-Test">>, S#auth_session.user_agent),
+  ?assertEqual(120, byte_size(S#auth_session.device_name)),
+  ?assertMatch({error, invalid_client_type},
+    logic_auth_session:issue_user_tokens(UserId, <<"user">>, <<"tablet">>, <<>>, <<>>)).
+
+test_revoke_others() ->
+  UserId = <<"usr_rev">>,
+  User = #user{
+    id = UserId, email = <<"r@test.com">>, role = user,
+    password_hash = <<>>, status = active, nickname = <<>>,
+    avatar_url = default, timezone = <<"UTC">>, language = <<"ru">>,
+    phone = <<>>, preferences = #{}, last_login = undefined,
+    created_at = undefined, updated_at = undefined
+  },
+  ok = meck:expect(core_user, get_by_id, fun(_) -> {ok, User} end),
+  {ok, _, RefreshKeep, KeepId} = logic_auth_session:issue_user_tokens(
+    UserId, <<"user">>, <<"web">>, <<"Keep">>, <<"ua1">>),
+  {ok, _, _RefreshOther, OtherId} = logic_auth_session:issue_user_tokens(
+    UserId, <<"user">>, <<"web">>, <<"Other">>, <<"ua2">>),
+  {ok, 1} = logic_auth_session:revoke_other_user_sessions(UserId, RefreshKeep),
+  ?assertEqual(ok, logic_auth_session:revoke_user_session(UserId, OtherId)),
+  Active = logic_auth_session:list_user_sessions(UserId),
+  ?assertEqual(1, length(Active)),
+  ?assertEqual(KeepId, (hd(Active))#auth_session.session_id),
+  ?assertMatch({error, not_found},
+    logic_auth_session:revoke_user_session(UserId, <<"nope">>)).