The reason why Bluetooth pairing requests always appear in watches:
1. The Bluetooth of the mobile phone was accidentally turned off.
2. The watch battery is insufficient, resulting in automatic disconnection.
3. The Bluetooth between the watch and the mobile phone exceeds a certain distance. It is generally believed that the effective range of Bluetooth is about 10 meter, beyond which the signal strength will drop sharply.
4. The Bluetooth module of mobile phone is too old. This kind of situation usually appears on old mobile phones, such as those bought three years ago. Because the Bluetooth module is not up-to-date, the compatibility is a little poor, so the situation of not connecting is basically easy to solve.
5. The permissions of the mobile phone are not opened, and the connection cannot be made because some permissions in the mobile phone are not opened. The reminder function and some display functions of the watch need self-starting service support, so it must be turned on, otherwise it will still affect the use.
Bluetooth technology is an open global specification for wireless data and voice communication. It is a special short-distance wireless technology connection based on low-cost short-distance wireless connection, which establishes a communication environment for fixed and mobile devices.