diff --git a/app/src/main/java/com/chiller3/basicsync/Notifications.kt b/app/src/main/java/com/chiller3/basicsync/Notifications.kt
index 4952bdc..77cdb39 100644
--- a/app/src/main/java/com/chiller3/basicsync/Notifications.kt
+++ b/app/src/main/java/com/chiller3/basicsync/Notifications.kt
@@ -109,12 +109,14 @@ class Notifications(private val context: Context) {
             if (runState.showFolderStates) {
                 setContentText(buildString {
                     append(context.resources.getQuantityString(
-                        R.plurals.connected_devices,
-                        state.connectedDevices,
-                        state.connectedDevices,
+                        R.plurals.device_state_connected,
+                        state.deviceStates.connected,
+                        state.deviceStates.connected,
                     ))
 
                     for ((resId, count) in arrayOf(
+                        R.plurals.device_state_syncing to state.deviceStates.syncing,
+                        R.plurals.device_state_pending to state.deviceStates.pending,
                         R.plurals.folder_state_idle to state.folderStates.idle,
                         R.plurals.folder_state_scanning to state.folderStates.scanning,
                         R.plurals.folder_state_syncing to state.folderStates.syncing,
diff --git a/app/src/main/java/com/chiller3/basicsync/settings/SettingsScreen.kt b/app/src/main/java/com/chiller3/basicsync/settings/SettingsScreen.kt
index 8e7ecef..ae7d57b 100644
--- a/app/src/main/java/com/chiller3/basicsync/settings/SettingsScreen.kt
+++ b/app/src/main/java/com/chiller3/basicsync/settings/SettingsScreen.kt
@@ -926,7 +926,7 @@ private fun PreviewSettingsScreen() {
         preRunAction = null,
         showExit = false,
         folderStates = SyncthingService.FolderStates(),
-        connectedDevices = 0,
+        deviceStates = SyncthingService.DeviceStates(),
     )
 
     AppTheme {
diff --git a/app/src/main/java/com/chiller3/basicsync/syncthing/DeviceState.kt b/app/src/main/java/com/chiller3/basicsync/syncthing/DeviceState.kt
index 3c0def7..4df36fb 100644
--- a/app/src/main/java/com/chiller3/basicsync/syncthing/DeviceState.kt
+++ b/app/src/main/java/com/chiller3/basicsync/syncthing/DeviceState.kt
@@ -535,7 +535,9 @@ class DeviceStateTracker(private val context: Context) :
         }
     }
 
-    fun updateConnectedDevices(count: Int) {
+    fun updateConnectedDevices(deviceStates: SyncthingService.DeviceStates) {
+        val count = deviceStates.connected
+
         handler.post {
             if (state.connectedDevices != count) {
                 val connectedBefore = state.connectedOnce
diff --git a/app/src/main/java/com/chiller3/basicsync/syncthing/SyncthingService.kt b/app/src/main/java/com/chiller3/basicsync/syncthing/SyncthingService.kt
index 5e2a7eb..80d4dac 100644
--- a/app/src/main/java/com/chiller3/basicsync/syncthing/SyncthingService.kt
+++ b/app/src/main/java/com/chiller3/basicsync/syncthing/SyncthingService.kt
@@ -89,7 +89,7 @@ class SyncthingService : Service(), SyncthingStatusReceiver, DeviceStateListener
         private val preRunAction: PreRunAction?,
         private val showExit: Boolean,
         val folderStates: FolderStates,
-        val connectedDevices: Int,
+        val deviceStates: DeviceStates,
     ) {
         private val shouldResume: Boolean
             get() = blockedReasons.isEmpty()
@@ -202,6 +202,18 @@ class SyncthingService : Service(), SyncthingStatusReceiver, DeviceStateListener
         )
     }
 
+    data class DeviceStates(
+        val connected: Int,
+        val syncing: Int,
+        val pending: Int,
+    ) {
+        constructor() : this(
+            connected = 0,
+            syncing = 0,
+            pending = 0,
+        )
+    }
+
     private lateinit var prefs: Preferences
     private lateinit var notifications: Notifications
     private val runnerThread = Thread(::runner)
@@ -266,7 +278,7 @@ class SyncthingService : Service(), SyncthingStatusReceiver, DeviceStateListener
     @GuardedBy("stateLock")
     private var syncthingFolderStates = FolderStates()
     @GuardedBy("stateLock")
-    private var syncthingConnectedDevices = 0
+    private var syncthingDeviceStates = DeviceStates()
 
     private val isResumed: Boolean
         @GuardedBy("stateLock")
@@ -471,7 +483,7 @@ class SyncthingService : Service(), SyncthingStatusReceiver, DeviceStateListener
                 preRunAction = currentPreRunAction,
                 showExit = prefs.showExit,
                 folderStates = syncthingFolderStates,
-                connectedDevices = syncthingConnectedDevices,
+                deviceStates = syncthingDeviceStates,
             )
 
             val wasChanged = notificationState != lastServiceState
@@ -479,7 +491,7 @@ class SyncthingService : Service(), SyncthingStatusReceiver, DeviceStateListener
             if (wasChanged || forceShowNotification) {
                 if (wasChanged) {
                     deviceStateTracker.updateBusyFolders(notificationState.folderStates)
-                    deviceStateTracker.updateConnectedDevices(notificationState.connectedDevices)
+                    deviceStateTracker.updateConnectedDevices(notificationState.deviceStates)
 
                     val guiInfo = guiInfo
 
@@ -627,7 +639,7 @@ class SyncthingService : Service(), SyncthingStatusReceiver, DeviceStateListener
             syncthingConflicts = emptyList()
             syncthingAlerts = 0
             syncthingFolderStates = FolderStates()
-            syncthingConnectedDevices = 0
+            syncthingDeviceStates = DeviceStates()
             syncthingApp = null
 
             stateChanged()
@@ -680,9 +692,13 @@ class SyncthingService : Service(), SyncthingStatusReceiver, DeviceStateListener
     }
 
     @WorkerThread
-    override fun onConnectedDevicesUpdated(count: Int) {
+    override fun onDeviceStatesUpdated(connected: Int, syncing: Int, pending: Int) {
         synchronized(stateLock) {
-            syncthingConnectedDevices = count
+            syncthingDeviceStates = DeviceStates(
+                connected = connected,
+                syncing = syncing,
+                pending = pending,
+            )
             stateChanged()
         }
     }
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index e434737..4751fb1 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -213,7 +213,7 @@
         <item quantity="many">• %d folderów uruchamianych</item>
         <item quantity="other">• %d folderów uruchamianych</item>
     </plurals>
-    <plurals name="connected_devices">
+    <plurals name="device_state_connected">
         <item quantity="one">• %d podłączone urządzenie</item>
         <item quantity="few">• %d podłączone urządzenia</item>
         <item quantity="many">• %d podłączonych urządzeń</item>
diff --git a/app/src/main/res/values-tr/strings.xml b/app/src/main/res/values-tr/strings.xml
index 8a426c7..e6d7723 100644
--- a/app/src/main/res/values-tr/strings.xml
+++ b/app/src/main/res/values-tr/strings.xml
@@ -189,7 +189,7 @@
         <item quantity="one">• %d klasör başlatılıyor</item>
         <item quantity="other">• %d klasör başlatılıyor</item>
     </plurals>
-    <plurals name="connected_devices">
+    <plurals name="device_state_connected">
         <item quantity="one">• %d cihaz bağlandı</item>
         <item quantity="other">• %d cihaz bağlandı</item>
     </plurals>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 85f14ec..a901f0e 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -177,7 +177,7 @@
     <plurals name="folder_state_starting">
         <item quantity="other">• %d 个文件夹正在启动</item>
     </plurals>
-    <plurals name="connected_devices">
+    <plurals name="device_state_connected">
         <item quantity="other">• %d 台设备已连接</item>
     </plurals>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 682fc1d..071221d 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -337,10 +337,20 @@
         <item quantity="other">• %d folders starting</item>
     </plurals>
     <!-- Number of devices currently connected. -->
-    <plurals name="connected_devices">
+    <plurals name="device_state_connected">
         <item quantity="one">• %d device connected</item>
         <item quantity="other">• %d devices connected</item>
     </plurals>
+    <!-- Number of devices currently syncing. -->
+    <plurals name="device_state_syncing">
+        <item quantity="one">• %d device syncing</item>
+        <item quantity="other">• %d devices syncing</item>
+    </plurals>
+    <!-- Number of devices with data that needs to be synced once connected. -->
+    <plurals name="device_state_pending">
+        <item quantity="one">• %d device pending sync</item>
+        <item quantity="other">• %d devices pending sync</item>
+    </plurals>
 
     <!-- Text shown in quick settings tile when in auto mode. Keep text as short as possible. -->
     <string name="quick_settings_tile_auto_mode">Auto mode</string>
diff --git a/stbridge/stbridge.go b/stbridge/stbridge.go
index 3230fd1..115d2ad 100644
--- a/stbridge/stbridge.go
+++ b/stbridge/stbridge.go
@@ -306,7 +306,11 @@ type SyncthingStatusReceiver interface {
 		starting int32,
 	)
 
-	OnConnectedDevicesUpdated(count int32)
+	OnDeviceStatesUpdated(
+		connected int32,
+		syncing int32,
+		pending int32,
+	)
 }
 
 // db.DB is internal, so it's unnameable and we can't create a function that
@@ -436,11 +440,28 @@ func dispatchFolderStates(
 	)
 }
 
-func dispatchConnectedDevices(
-	devicesConnected map[string]struct{},
+type deviceStates struct {
+	connected map[string]struct{}
+	dirty     map[string]map[string]struct{}
+}
+
+func dispatchDeviceStates(
+	deviceStates *deviceStates,
 	receiver SyncthingStatusReceiver,
 ) {
-	receiver.OnConnectedDevicesUpdated(int32(len(devicesConnected)))
+	connected := int32(len(deviceStates.connected))
+	syncing := int32(0)
+	pending := int32(0)
+
+	for deviceID, _ := range deviceStates.dirty {
+		if _, ok := deviceStates.connected[deviceID]; ok {
+			syncing += 1
+		} else {
+			pending += 1
+		}
+	}
+
+	receiver.OnDeviceStatesUpdated(connected, syncing, pending)
 }
 
 func eventLoop(
@@ -463,12 +484,16 @@ func eventLoop(
 			events.StateChanged |
 			events.DeviceConnected |
 			events.DeviceDisconnected |
+			events.FolderCompletion |
 			events.ConfigSaved,
 	)
 	defer sub.Unsubscribe()
 
-	devicesConnected := map[string]struct{}{}
 	folderStates := map[string]string{}
+	deviceStates := deviceStates{
+		connected: map[string]struct{}{},
+		dirty:     map[string]map[string]struct{}{},
+	}
 
 	for {
 		select {
@@ -580,17 +605,46 @@ func eventLoop(
 				data := evt.Data.(map[string]string)
 				deviceID := data["id"]
 
-				devicesConnected[deviceID] = struct{}{}
+				deviceStates.connected[deviceID] = struct{}{}
 
-				dispatchConnectedDevices(devicesConnected, receiver)
+				dispatchDeviceStates(&deviceStates, receiver)
 
 			case events.DeviceDisconnected:
 				data := evt.Data.(map[string]string)
 				deviceID := data["id"]
 
-				delete(devicesConnected, deviceID)
+				delete(deviceStates.connected, deviceID)
+
+				dispatchDeviceStates(&deviceStates, receiver)
+
+			case events.FolderCompletion:
+				data := evt.Data.(map[string]interface{})
+				folderID := data["folder"].(string)
+				deviceID := data["device"].(string)
+
+				needBytes := data["needBytes"].(int64)
+				needItems := data["needItems"].(int)
+				needDeletes := data["needDeletes"].(int)
+
+				syncing := needBytes != 0 || needItems != 0 || needDeletes != 0
 
-				dispatchConnectedDevices(devicesConnected, receiver)
+				if syncing {
+					if _, ok := deviceStates.dirty[deviceID]; !ok {
+						deviceStates.dirty[deviceID] = map[string]struct{}{}
+					}
+					if _, ok := deviceStates.dirty[deviceID][folderID]; !ok {
+						deviceStates.dirty[deviceID][folderID] = struct{}{}
+					}
+				} else {
+					if folders, ok := deviceStates.dirty[deviceID]; ok {
+						delete(folders, folderID)
+						if len(folders) == 0 {
+							delete(deviceStates.dirty, deviceID)
+						}
+					}
+				}
+
+				dispatchDeviceStates(&deviceStates, receiver)
 
 			// When a folder is deleted, we need to manually clear out the
 			// corresponding conflicts because we will not receive deletion
@@ -605,23 +659,44 @@ func eventLoop(
 					conflictsInfo.folderPaths[folder.ID], _ = fs.ExpandTilde(folder.Path)
 				}
 
-				for key := range conflictsInfo.byFolder {
-					if _, ok := conflictsInfo.folderPaths[key]; !ok {
-						delete(conflictsInfo.byFolder, key)
+				for folderID := range conflictsInfo.byFolder {
+					if _, ok := conflictsInfo.folderPaths[folderID]; !ok {
+						delete(conflictsInfo.byFolder, folderID)
 					}
 				}
 
-				for key := range folderStates {
-					if _, ok := conflictsInfo.folderPaths[key]; !ok {
-						delete(folderStates, key)
+				dispatchConflicts(conflictsInfo, receiver)
+
+				for folderID := range folderStates {
+					if _, ok := conflictsInfo.folderPaths[folderID]; !ok {
+						delete(folderStates, folderID)
 					}
 				}
 
-				dispatchConflicts(conflictsInfo, receiver)
 				dispatchFolderStates(folderStates, receiver)
-				// Unlike folders, we don't need to remove deleted devices from
-				// devicesConnected. We'll always receive a disconnection event
-				// when connections are closed during deletion.
+
+				devices := map[string]struct{}{}
+
+				for _, device := range cfg.Devices {
+					devices[device.DeviceID.String()] = struct{}{}
+				}
+
+				// We don't need to clean up deviceStates.connected because
+				// we'll always receive a disconnection event when connections
+				// are closed during deletion.
+
+				for deviceID, folders := range deviceStates.dirty {
+					for folderID := range folders {
+						if _, ok := conflictsInfo.folderPaths[folderID]; !ok {
+							delete(folders, folderID)
+						}
+					}
+					if _, ok := devices[deviceID]; !ok || len(folders) == 0 {
+						delete(deviceStates.dirty, deviceID)
+					}
+				}
+
+				dispatchDeviceStates(&deviceStates, receiver)
 
 				// A config.Wrapper is needed to determine if a restart is
 				// required. config.Configuration does not contain enough info.