How to bind the Redmi Watch 4 with the phone? What to do if the binding fails?

For your reference, here are details about how to bind the Redmi Watch 4 with the phone:
1. Open the Mi Fitness APP, log in to your account according to the page prompts, and open the relevant permissions required by the APP. Tap [Add Device] >> [Add model] at the bottom of the page >> select [Redmi Watch 4], and the APP will automatically search for the Redmi Watch 4 that can be added >> in the list of searched devices, select the Bluetooth name of your watch. If your watch is not searched in the list, you can try to search again;
2. When you use a different account to rebind to the watch, you need to press and hold the watch Power Button for 3 seconds to select [Restore factory] in the system operation interface, and then rebind with the new phone;
The following are the reasons for the unsuccessful connection for your reference:
1. Please check whether the Bluetooth of your phone is on or not;
2. Please check whether the watch is in the QR code pairing interface;
3. Please do not turn off the Bluetooth during the binding process;
4. During the binding process, please keep the cell phone and the watch within the pairing range and do not be too far away from each other (it is recommended not to exceed the range of 2 meters, and the specific performance of the actual use of the watch shall prevail);
5. After the watch is restored to the factory, the cell phone fails to connect after re-searching;
6. The iOS system opens many applications in the background, causing the iOS phone to be unable to reconnect;
7. Android phones do not open the background running privileges, resulting in the Mi Fitness APP being closed in the background;
8. The watch or cell phone has turned on the power saving mode;
9. When binding, if you close the Android phone Bluetooth, the watch will pop up “pairing failure” interface and the Mi Fitness APP will show binding failure. If you tap on [Retry], the APP will prompt you to open the Bluetooth. Turning on Bluetooth again will successfully bind.
Note:
If the watch has popped up the security code, but the phone has not popped up the pairing confirmation window, please look for the pairing request in the phone notification bar.