Apple watch can only be connected to the Apple phone to use, and the Apple watch can be detached from the Apple phone to use, but can only use part of the function. The Apple Watch iwatch can only be used for Apple cell phone systems, and non-Apple cell phone systems cannot be matched to the Apple Watch.
The Apple Watch must be paired with an Apple phone before you can access the normal dial page of the Apple Watch, and the true functionality of the Apple Watch will open.