diff --git a/shared/data/build.gradle.kts b/shared/data/build.gradle.kts
index f946abda..d91461b3 100644
--- a/shared/data/build.gradle.kts
+++ b/shared/data/build.gradle.kts
@@ -30,7 +30,12 @@ kotlin {
         api(libs.androidx.datastore.preferences)
 
         api(libs.firebase.auth)
+      }
+    }
 
+    androidMain {
+      dependencies {
+        implementation(libs.play.services.wearable)
       }
     }
   }
diff --git a/shared/data/src/androidMain/kotlin/fr/androidmakers/store/wear/WearMessagingImpl.kt b/shared/data/src/androidMain/kotlin/fr/androidmakers/store/wear/WearMessagingImpl.kt
new file mode 100644
index 00000000..e56b0895
--- /dev/null
+++ b/shared/data/src/androidMain/kotlin/fr/androidmakers/store/wear/WearMessagingImpl.kt
@@ -0,0 +1,26 @@
+package fr.androidmakers.store.wear
+
+import android.content.Context
+import android.util.Log
+import com.google.android.gms.wearable.Wearable
+import kotlinx.coroutines.tasks.await
+
+class WearMessagingImpl(context: Context) : WearMessaging {
+  companion object {
+    const val MESSAGE_SYNC_BOOKMARKS = "syncBookmarks"
+  }
+
+  private val nodeClient = Wearable.getNodeClient(context)
+  private val messageClient = Wearable.getMessageClient(context)
+
+  override suspend fun sendSyncBookmarksMessage() {
+    try {
+      val allNodeIds = nodeClient.connectedNodes.await().map { it.id }
+      for (nodeId in allNodeIds) {
+        messageClient.sendMessage(nodeId, MESSAGE_SYNC_BOOKMARKS, null).await()
+      }
+    } catch (t: Throwable) {
+      Log.w("WearMessagingImpl", "Error sending message", t)
+    }
+  }
+}
diff --git a/shared/data/src/commonMain/kotlin/fr/androidmakers/store/wear/WearMessaging.kt b/shared/data/src/commonMain/kotlin/fr/androidmakers/store/wear/WearMessaging.kt
new file mode 100644
index 00000000..78d5ed98
--- /dev/null
+++ b/shared/data/src/commonMain/kotlin/fr/androidmakers/store/wear/WearMessaging.kt
@@ -0,0 +1,5 @@
+package fr.androidmakers.store.wear
+
+interface WearMessaging {
+  suspend fun sendSyncBookmarksMessage()
+}
diff --git a/shared/data/src/commonMain/kotlin/fr/androidmakers/store/wear/WearMessagingRepository.kt b/shared/data/src/commonMain/kotlin/fr/androidmakers/store/wear/WearMessagingRepository.kt
new file mode 100644
index 00000000..e0c72aee
--- /dev/null
+++ b/shared/data/src/commonMain/kotlin/fr/androidmakers/store/wear/WearMessagingRepository.kt
@@ -0,0 +1,9 @@
+package fr.androidmakers.store.wear
+
+import fr.androidmakers.domain.repo.MessagingRepository
+
+class WearMessagingRepository(private val wearMessaging: WearMessaging) : MessagingRepository {
+  override suspend fun sendSyncBookmarksMessage() {
+    wearMessaging.sendSyncBookmarksMessage()
+  }
+}
diff --git a/shared/data/src/iosMain/kotlin/fr/androidmakers/store/wear/WearMessagingImpl.kt b/shared/data/src/iosMain/kotlin/fr/androidmakers/store/wear/WearMessagingImpl.kt
new file mode 100644
index 00000000..271d2eb3
--- /dev/null
+++ b/shared/data/src/iosMain/kotlin/fr/androidmakers/store/wear/WearMessagingImpl.kt
@@ -0,0 +1,7 @@
+package fr.androidmakers.store.wear
+
+class WearMessagingImpl : WearMessaging {
+  override suspend fun sendSyncBookmarksMessage() {
+    // No-op on iOS
+  }
+}
diff --git a/shared/di/src/androidMain/kotlin/fr/androidmakers/di/DataModule.android.kt b/shared/di/src/androidMain/kotlin/fr/androidmakers/di/DataModule.android.kt
index 1cc8ea36..5285dc41 100644
--- a/shared/di/src/androidMain/kotlin/fr/androidmakers/di/DataModule.android.kt
+++ b/shared/di/src/androidMain/kotlin/fr/androidmakers/di/DataModule.android.kt
@@ -5,6 +5,8 @@ import androidx.datastore.preferences.core.Preferences
 import com.apollographql.apollo3.cache.normalized.sql.SqlNormalizedCacheFactory
 import fr.androidmakers.store.graphql.ApolloClient
 import fr.androidmakers.store.local.createDataStore
+import fr.androidmakers.store.wear.WearMessaging
+import fr.androidmakers.store.wear.WearMessagingImpl
 import org.koin.android.ext.koin.androidContext
 import org.koin.dsl.module
 
@@ -21,4 +23,8 @@ actual val dataPlatformModule = module {
       androidContext().filesDir.resolve("bookmarks.preferences_pb").absolutePath
     }
   }
+
+  single<WearMessaging> {
+    WearMessagingImpl(get())
+  }
 }
diff --git a/shared/di/src/commonMain/kotlin/fr/androidmakers/di/DataModule.kt b/shared/di/src/commonMain/kotlin/fr/androidmakers/di/DataModule.kt
index f456bf5d..cf76cb06 100644
--- a/shared/di/src/commonMain/kotlin/fr/androidmakers/di/DataModule.kt
+++ b/shared/di/src/commonMain/kotlin/fr/androidmakers/di/DataModule.kt
@@ -1,6 +1,7 @@
 package fr.androidmakers.di
 
 import fr.androidmakers.domain.repo.BookmarksRepository
+import fr.androidmakers.domain.repo.MessagingRepository
 import fr.androidmakers.domain.repo.PartnersRepository
 import fr.androidmakers.domain.repo.RoomsRepository
 import fr.androidmakers.domain.repo.SessionsRepository
@@ -14,6 +15,7 @@ import fr.androidmakers.store.graphql.SessionsGraphQLRepository
 import fr.androidmakers.store.graphql.SpeakersGraphQLRepository
 import fr.androidmakers.store.graphql.VenueGraphQLRepository
 import fr.androidmakers.store.local.BookmarksDataStoreRepository
+import fr.androidmakers.store.wear.WearMessagingRepository
 import org.koin.core.module.Module
 import org.koin.dsl.module
 
@@ -29,4 +31,5 @@ val dataModule = module {
   single<VenueRepository> { VenueGraphQLRepository(get()) }
 
   single<BookmarksRepository> { BookmarksDataStoreRepository(get()) }
+  single<MessagingRepository> { WearMessagingRepository(get()) }
 }
diff --git a/shared/di/src/commonMain/kotlin/fr/androidmakers/di/DomainModule.kt b/shared/di/src/commonMain/kotlin/fr/androidmakers/di/DomainModule.kt
index 571e5e99..d8377e2e 100644
--- a/shared/di/src/commonMain/kotlin/fr/androidmakers/di/DomainModule.kt
+++ b/shared/di/src/commonMain/kotlin/fr/androidmakers/di/DomainModule.kt
@@ -6,6 +6,7 @@ import fr.androidmakers.domain.interactor.GetAgendaUseCase
 import fr.androidmakers.domain.interactor.GetConferenceVenueUseCase
 import fr.androidmakers.domain.interactor.GetFavoriteSessionsUseCase
 import fr.androidmakers.domain.interactor.GetPartnersUseCase
+import fr.androidmakers.domain.interactor.MergeBookmarksUseCase
 import fr.androidmakers.domain.interactor.OpenCocUseCase
 import fr.androidmakers.domain.interactor.OpenFaqUseCase
 import fr.androidmakers.domain.interactor.OpenLinkUseCase
@@ -14,7 +15,6 @@ import fr.androidmakers.domain.interactor.OpenXAccountUseCase
 import fr.androidmakers.domain.interactor.OpenXHashtagUseCase
 import fr.androidmakers.domain.interactor.OpenYoutubeUseCase
 import fr.androidmakers.domain.interactor.SetSessionBookmarkUseCase
-import fr.androidmakers.domain.interactor.MergeBookmarksUseCase
 import org.koin.core.module.Module
 import org.koin.dsl.module
 
@@ -30,7 +30,7 @@ val domainModule = module {
   factory { OpenYoutubeUseCase(get()) }
   factory { OpenXHashtagUseCase(get()) }
   factory { OpenXAccountUseCase(get()) }
-  factory { SetSessionBookmarkUseCase(get(), get(), get()) }
+  factory { SetSessionBookmarkUseCase(get(), get(), get(), get()) }
   factory { GetPartnersUseCase(get()) }
   factory { GetFavoriteSessionsUseCase(get()) }
   factory { OpenPartnerLinkUseCase(get()) }
diff --git a/shared/di/src/iosMain/kotlin/fr/androidmakers/di/DataModule.ios.kt b/shared/di/src/iosMain/kotlin/fr/androidmakers/di/DataModule.ios.kt
index bdea2011..90604c68 100644
--- a/shared/di/src/iosMain/kotlin/fr/androidmakers/di/DataModule.ios.kt
+++ b/shared/di/src/iosMain/kotlin/fr/androidmakers/di/DataModule.ios.kt
@@ -5,6 +5,8 @@ import androidx.datastore.preferences.core.Preferences
 import com.apollographql.apollo3.cache.normalized.sql.SqlNormalizedCacheFactory
 import fr.androidmakers.store.graphql.ApolloClient
 import fr.androidmakers.store.local.createDataStore
+import fr.androidmakers.store.wear.WearMessaging
+import fr.androidmakers.store.wear.WearMessagingImpl
 import kotlinx.cinterop.ExperimentalForeignApi
 import org.koin.dsl.module
 import platform.Foundation.NSDocumentDirectory
@@ -24,13 +26,17 @@ actual val dataPlatformModule = module {
   single<DataStore<Preferences>> {
     createDataStore {
       val documentDirectory: NSURL? = NSFileManager.defaultManager.URLForDirectory(
-          directory = NSDocumentDirectory,
-          inDomain = NSUserDomainMask,
-          appropriateForURL = null,
-          create = false,
-          error = null,
+        directory = NSDocumentDirectory,
+        inDomain = NSUserDomainMask,
+        appropriateForURL = null,
+        create = false,
+        error = null,
       )
       requireNotNull(documentDirectory).path + "/bookmarks.preferences_pb"
     }
   }
+
+  single<WearMessaging> {
+    WearMessagingImpl()
+  }
 }
diff --git a/shared/domain/src/commonMain/kotlin/fr/androidmakers/domain/interactor/SetSessionBookmarkUseCase.kt b/shared/domain/src/commonMain/kotlin/fr/androidmakers/domain/interactor/SetSessionBookmarkUseCase.kt
index e21d724d..c8e9a363 100644
--- a/shared/domain/src/commonMain/kotlin/fr/androidmakers/domain/interactor/SetSessionBookmarkUseCase.kt
+++ b/shared/domain/src/commonMain/kotlin/fr/androidmakers/domain/interactor/SetSessionBookmarkUseCase.kt
@@ -1,18 +1,21 @@
 package fr.androidmakers.domain.interactor
 
 import fr.androidmakers.domain.repo.BookmarksRepository
+import fr.androidmakers.domain.repo.MessagingRepository
 import fr.androidmakers.domain.repo.SessionsRepository
 import fr.androidmakers.domain.repo.UserRepository
 
 class SetSessionBookmarkUseCase(
-    private val userRepository: UserRepository,
-    private val sessionsRepository: SessionsRepository,
-    private val bookmarksRepository: BookmarksRepository
+  private val userRepository: UserRepository,
+  private val sessionsRepository: SessionsRepository,
+  private val bookmarksRepository: BookmarksRepository,
+  private val messagingRepository: MessagingRepository,
 ) {
   suspend operator fun invoke(sessionId: String, isBookmark: Boolean) {
     bookmarksRepository.setBookmarked(sessionId, isBookmark)
     userRepository.getUser()?.id?.let { token ->
       sessionsRepository.setBookmark(token, sessionId, isBookmark)
     }
+    messagingRepository.sendSyncBookmarksMessage()
   }
 }
diff --git a/shared/domain/src/commonMain/kotlin/fr/androidmakers/domain/repo/MessagingRepository.kt b/shared/domain/src/commonMain/kotlin/fr/androidmakers/domain/repo/MessagingRepository.kt
new file mode 100644
index 00000000..b66604be
--- /dev/null
+++ b/shared/domain/src/commonMain/kotlin/fr/androidmakers/domain/repo/MessagingRepository.kt
@@ -0,0 +1,5 @@
+package fr.androidmakers.domain.repo
+
+interface MessagingRepository {
+  suspend fun sendSyncBookmarksMessage()
+}
diff --git a/wearApp/src/main/java/fr/paug/androidmakers/wear/ui/main/MainViewModel.kt b/wearApp/src/main/java/fr/paug/androidmakers/wear/ui/main/MainViewModel.kt
index b2cc1ee4..5c33d6b7 100644
--- a/wearApp/src/main/java/fr/paug/androidmakers/wear/ui/main/MainViewModel.kt
+++ b/wearApp/src/main/java/fr/paug/androidmakers/wear/ui/main/MainViewModel.kt
@@ -6,11 +6,11 @@ import androidx.lifecycle.AndroidViewModel
 import androidx.lifecycle.viewModelScope
 import com.google.android.gms.auth.api.signin.GoogleSignIn
 import com.google.android.gms.auth.api.signin.GoogleSignInOptions
+import com.google.android.gms.wearable.Wearable
 import dev.gitlive.firebase.Firebase
 import dev.gitlive.firebase.auth.auth
 import fr.androidmakers.domain.interactor.GetAgendaUseCase
 import fr.androidmakers.domain.interactor.GetFavoriteSessionsUseCase
-import fr.androidmakers.domain.interactor.MergeBookmarksUseCase
 import fr.androidmakers.domain.model.Agenda
 import fr.androidmakers.domain.model.User
 import fr.androidmakers.domain.repo.BookmarksRepository
@@ -69,6 +69,14 @@ class MainViewModel(
       maybeSyncBookmarks()
       refreshSignal.send(Unit)
     }
+
+    val messageClient = Wearable.getMessageClient(application)
+    messageClient.addListener {
+      Log.d(TAG, "Received syncBookmarks message")
+      viewModelScope.launch {
+        maybeSyncBookmarks()
+      }
+    }
   }
 
   private suspend fun maybeSyncBookmarks() {