If you're new to the Wear OS ecosystem, you might remember the days when a single, unified "Wear OS by Google" application managed all Android smartwatches. However, starting with the release of Wear OS 3, Google shifted this responsibility. Now, manufacturers must build and distribute their own dedicated companion applications—such as the Galaxy Wearable app for Samsung, the Google Pixel Watch app for Google, and Mobvoi Health for TicWatch.
These mobile companion applications serve as the central bridge between your smartphone and smartwatch, controlling settings, synchronizing health logs, managing file transfers, and pushing notifications. Let's look at why these companion applications are essential, how to configure their permissions, and how to prevent disconnection issues.
Key Benefits of Smartwatch Companion Apps
While you can perform many basic actions directly on your watch's circular display, the companion application on your phone provides a much more comfortable environment for deep configuration. Key capabilities include:
- Watch Face Customization: Select background layouts, design color schemes, and map individual watch face complications using your phone's large screen.
- Notification Management: Prevent non-essential apps from buzzing your wrist while ensuring critical alerts get through.
- Device Backup and Recovery: Save your custom tiles, layout preferences, and system settings to your Google or Samsung cloud account so you can easily restore them if you reset your watch.
- Find My Watch: Trigger a loud ringtone on your misplaced watch or pinpoint its last known location on a map.
Managing Android App Permissions
Because companion apps act as a system bridge, they require access to various Android permissions. If you deny these permission requests during setup, features like text replies, calls, and calendar reminders will fail to work.
| Requested Permission | Why the App Needs It | Consequence of Disabling |
|---|---|---|
| Notification Access | Reads incoming alerts on your phone to mirror them to your wrist. | No notifications will appear on your watch. |
| Location Access | Required for Bluetooth LE pairing scans and weather updates. | Watch cannot sync weather info or reconnect. |
| Contacts & Call Logs | Syncs caller ID names and lets you dial out from your wrist. | Calls show as unknown numbers; dialer app won't open. |
| SMS / Messages | Reads and writes text replies from the watch keyboard. | Cannot view or send text replies. |
How to Verify and Grant Permissions:
- On your smartphone, long-press the icon of your watch's companion app (e.g., Galaxy Wearable or Pixel Watch).
- Tap the "App Info" (i) button to open the system settings.
- Select Permissions.
- Go through the list and change any denied permissions to "Allow" or "Allow all the time".
- Disable the toggle next to "Pause app activity if unused" (or Remove permissions if app is unused) to prevent Android from revoking permissions automatically.
Preventing Sudden Disconnections (Battery Settings)
The most common complaint from Wear OS owners is that their watch randomly disconnects from their phone. In most cases, this is not caused by a hardware failure or a Bluetooth glitch. Instead, it is usually because the Android operating system has terminated the companion app in the background to save battery.
Exclude from Battery Optimization
Always configure your smartwatch companion app to run with Unrestricted battery usage. If you leave it set to "Optimized," the phone's operating system will eventually close the app when the phone is idle, dropping the connection to your watch.
How to Disable Battery Optimization:
- Open the phone's Settings > Apps.
- Select your watch companion app.
- Tap on Battery or Battery usage.
- Change the setting from Optimized to Unrestricted.
Configuring these permission and battery settings ensures a reliable, seamless connection between your phone and your Wear OS smartwatch.