For your reference, the unbinding steps are as follows: 1. For Android phones, open the Mi Fitness APP and tap [Unpair]on the [Device]interface. For iOS phones, open the Mi Fitness APP,tap[Additional settings] on the [Device]interface, and then tap [Unpair]; 2. After the watch resumes its factory settings, it will automatically unbind from the mobile phone; 3. After unbinding, the watch will resume its factory settings and all data will be emptied. Note: 1.The Mi Fitness APP can bind multiple watches. 5-10 watches can be bound under the same account, but only one can be enabled when using it; 2. To switch between different watches inthe Mi Fitness APP, enter [Device]>>tap[Manage your devices] (Android) or tap[Wearables](iOS) to view all devices, and select the watch to switch.