Digital Family Bluetooth Bracelet with Vibration Function and Digital Time Display (silver) Bluetooth dialer:After the smart watch connected with your mobile phone via build-in Bluetooth, you can dial the calls directly from your watch and it also goes through your mobile phone. 1.54 inches capacitive touch screen with 240*240 pixels, which has the characteristics of high sensitivity and high definition. When a call, message or other notification comes in, your Smart Watch acts as an Android remote and gently vibrates on your wrist to let you know. Fitness tracker: pedometer tracks steps, distance and calories burned, which is good for living a healthier lifestyle. Android System can support all function in the description. IOS Only support partial function.