My watch connects to other devices but not to my smartphone, what should I do?

Please use only one device with your watch: as the app is the master of the watch, it is not possible to use several devices with your watch.

To unlock your problem, please do that on all the devices used to connect the watch :

On device one :

1 - Go to the settings, then Bluetooth settings
2 - Turn-on Bluetooth
3 - If you see the watch in the list of the Bluetooth devices, with an "i" logo, click on it, then click
on "Forget this device"
4 - Turn-off the Bluetooth
5 - Turn-on the airplane mode

On your smartphone:

1 - Go to the settings, then Bluetooth settings
2 - Turn-on Bluetooth
3 - If you see the watch in the list of the Bluetooth devices, with an "i" logo, click on it, then click on "Forget this device"
4 - Turn-off the Bluetooth
5 - Turn-on the airplane mode

On the watch :

1 - Press 10 times the crown button (the button at 3 o'clock) and on the tenth press, keep the button pressed for at least 10 seconds: the watch will move hands to indicate it has made a reset.

Then, choose the device you want to use (iPhone, iPad, or android, as you want: but use only this device with the watch in the future)

On the chosen device :

1 - Turn-off the airplane mode
2 - Turn-on the Bluetooth
3 - Open the app and connect the watch