Bluetooth Smart Watch compatible with all Bluetooth V4.0 or above enabled smartphones, tablets and PCs (support Android 2.3 or above),such as iPhone 4, 4S, 5, 5S, Sumsung S3, S4,</br>Handsfree Speaker Phone.Answer or Dial calls from your wrist.Ringing reminder when you receive a call.Display the number or name of incoming call. Time / Date / Week / Battery state display</br>Music Player.Play the music in your phone (after Bluetooth paring. Stopwatch / Pedometer</br>Capacative Touch Screen</br>Rechargeable Batter. NOTE: Android System can support all functions mentioned in the description; But IOS only support Passometer, Calendar, Call Sync,Calculator,Clock,Stopwatch</br></br>Product Description</br></br>Material: Steel + Silicon. 1.48" Capacitive Touch Screen TFT LCD.</br> Dial Size: 4.6 x 4.2 x 1cm / 1.81 x 1.65 x 0.39 inch.</br> Sync phone book/SMS/call history(only for android phone)</br> . Altitude Meter,Passometer,Photograph,Barometer,Vibration. Stopwatch function.</br> Remote taking photo function:You can control your cellphone to take photo from your wrist..</br> Ring reminder when your Android 2.3 or above smart phone receive a message (including Wechat, Facebook, </br> Twitter,WhatsApp, Skype,and so on).</br> Anti-lost alarm function: When cellphone left watch alarm </br> automatically, after a certain distance to avoid lose the phones.</br> NOTE: Android System can support all functions mentioned in the description;</br> But IOS only support Passometer, Calendar, Call Sync,Calculator,Clock,Stopwatch.</br> Talk Time: about 3 hours.</br> Standby Time: about 160 hours.</br> Bluetooth Version: Bluetooth V3.0+EDR. </br>Bluetooth Protocol: A2DP + HFP 1.5 + HS P 1.2.</br> Range of Frequency: 2.4GHz spectrum.</br> Language Support: English, Chinese</br> Power Supply: Built-in 230mAh rechargeable battery.</br> Package includes: host, charging USB line,a manual</br><br/>http://www.amazon.com/gp/product/B01EN273SM