ipegtop Vidonn X6s Fitness Tracker,Touch Key Sleep Monitor Pedometer Smart Watch Band Activity Wristband with Oled Calling and Text Display Bluetooth V4.0 (purple) Multi Function: Time(12/24), date(M/D); calling, messages, alarm, low battery vibrate reminding; track of steps, calories burned, distance, sleeping monitor. IP65 Waterproof, Wireless Bluetooth, 15 days Standby time make your outdoor life more expecting,7 days for normal use. Build in USB charge port,pull the watch strap to charge,don't need usb cable any more. ls check for the connector orientation when charging,the watch will be not charged if you put it in wrong orientation. Touch-key and 0.88in Oled display,Calling and text remind, sleeping monitor, 8 colck with slitly vibrate (make you wake up slowly), raise hand light automatically,keep track of daily activity. Newest version Vidonn X6s Smart Wristband,Work for iOS 7.1+, Andraid 4.3+ with bluetooth 4.0+. Confirm clearly before purchasing. keep the phone near the watch band,since the bluetooth function works in about 10 meter distance.