How do I pair my Amazfit T-Rex 3 with a phone?

To pair your Amazfit T-Rex 3, scan the QR code displayed on the watch face using the Zepp app on your smartphone. Ensure your phone is running Android 7.0 or iOS 12.0 or later and follow the on-screen prompts to complete the connection. For the best experience, keep the Zepp app updated to its latest version during the initial setup.