HANDS-FREE PHONE CALL -Dial & Answer the phone calls with this watch through Bluetooth,and Remote control your phone camera to taking a photo. it's unnecessary to pick up and holding your smartphone to do above thing; Incoming call displays the name & numbers;Missing calls & SMS display as notification.
FITNESS WATCH -Various health tracking app designed to monitoring the situation of your sleeping,walking(Accelerometer,Passometer)
EASY BT CONNECTION -This watch complete compatible with Andriod smartphone(4.2 and Above) through Bluetooth(version 3.0),include SAMSUNG galaxy s4/s5/s6/s7 Edge Note 3/4/5 HTC NEXUS SONY LG HUAWEI ZTE ONEPLUS etc,get it work just need to install an APP and open the Bluetooth on your smartphone. For Apple iPhone, Bluetooth connection use for Phone calls only.
MORE FEATURES -Bluetooth Phonebook & Message Sync,Calculator, Alarm Clock, Anti-lost Alarm, Music Player, Call History, Set Time/Date, SMS, MMS, Wechat, QQ. all functions fully supported by Andriod smartphone. but few functions not support by iPhone(Include Text Message, SMS, BT Music,Wechat, QQ, or Remote Camera)
KEY CONFIGURATION -1.48" TFT LCD Touch Screen to save the power,full charging the 230mAh rechargeable battery take about 1 hour ,could support 3-hour phone call,6-hour music play,stand by 160 hours.
Plz notice that  U8 watch is compatible with iPhone and Android by bluetooth function but APK is only for android not for iPhone, which means part of functions can/'t work with iPhones