Official Da Fit app guide
Da Fit app not working? Restore connection, permissions, and sync.
If Da Fit will not open, connect, stay active, or sync your smartwatch, first confirm the official app, update it, allow the needed phone permissions, and reconnect from inside Da Fit.
Reviewed by the Da Fit support team ยท Updated August 31, 2026
First checks
Get the Da Fit app working again
1. Confirm the official app and update it
- Open the official Da Fit listing from the Da Fit download page.
- Check for an available update, then reopen the app.
- If the app will not open, restart the phone before trying again.
2. Allow the permissions Da Fit needs
Allow Bluetooth or Nearby Devices when asked. Enable notification access if you want watch alerts. Android phones may also request location during device discovery. iPhone users can check Da Fit permissions in Settings > Privacy & Security.
3. Add the watch from inside Da Fit
Open the Device page, choose Add Device, select the watch in the scan list, and accept the pairing request. For a complete Bluetooth reset sequence, use the How to connect a Da Fit smartwatch guide.
Android
If Da Fit stops in the background
Keep Da Fit available after the screen turns off
Open phone Settings and remove battery restrictions for Da Fit. Enable autostart or background activity when the phone provides those controls. Keep Da Fit available in the recent-apps screen if your phone supports locking an app there.
Menu names vary by Android version and phone brand. See the official Da Fit Android background permissions guide for Samsung, Xiaomi, Huawei, OPPO, vivo, and general Android steps.
Compatibility
Check the watch before reinstalling
Not every smartwatch model uses the same companion app
Confirm the exact watch model from its manual, box QR code, seller instructions, or product support page. A brand name alone does not guarantee Da Fit compatibility. Review the cautious Da Fit compatible watch references and open your Da Fit watch manual when one is available.
What to include when contacting support
Send the watch model, phone brand and operating-system version, Da Fit app version, and screenshots of any error. Include whether the watch has previously connected to another phone. Email service@dafit.life.