Product DescriptionNew Bluetooth Smart U Watch U8 which is compatible with all Bluetooth V2.0 or above enabled smartphones、 tablets and PCs (support Android 2.3 or above)、 such as iPhone 4、 4S、 5、 5S、 Sumsung S3、 S4、 Note 2、 Note 3、 Note 4 etc.Features1.48 inches; Capacitive Touch Screen TFT LCDTime/Date/Week/Battery state displayRinging reminder when you receive a callRinging reminder once your mobile phone disconnectedDisplay the number or name of incoming callsAnswer or Dial calls from watchSupport hands-free calls、 phone bookPlay the music in your phoneSync SMS/call history(only for android phone、 you need download apk)Ring reminder when your smart phone receive a message (including Wechat、 Facebook、 Twitter、 WhatsApp、 Skype、 and so on.(Only for android phone.)Anti-lost alarm function: When cellphone left watch alarm automatically、 after a certain distance to avoid lose the phonesRemote taking photo function: You can control your cellphone to take photo from the watch.(only for android phone)Stopwatch、 Altitude Meter、 Passometer、 Photograph、 Barometer、 VibrationBluetooth Version: V3.0+EDRBluetooth Protocol: A2DP + HFP 1.5 + HS P 1.2Range of Frequency: 2.4GHz spectrumAmbient Noise: ＋75dBTransmitting Range: ＋10mCharging Time: about 1 hourTalk Time: about 3 hoursMusic Play Time: about 6 hoursStandby Time: about 160 hoursPower Supply: Built-in 230mAh rechargeable batteryPackage includes:1 x Bluetooth Watch1 X usb cable1 x User ManualIf you are satisfied with our product、 please give us Five-star rating. DINGWEI