Bluetooth connection support 99% mobile phones with Bluetooth function on the market, like Apple, Samsung, HTC, Motorola.
When U watch is connected with mobile phone, it gives an alarm when the distance is more than 10m.
You can scan the information and play the music which stored in the phone when the U watch is connected with mobile phone.
Wherever you are, you can answer or dial calls from you wrist once connected with the phone.
It has the functions of Altimeter and passometer. It is the good assistant of climbing, travelling and running.