Features :

Dial / Answer Phone Calls, Receive and Send MessageLike a smartphone, you can make phone call, receive and send SMS with it.

ThermometerBuilt-in temperature sensor, you can check the real-time weather.

Heart Rate MonitorThe custom heart rate sensor in NO.1 D3 smart watch phone can help gauge your intensity during workouts to improve overall calorie tracking.

UV DetectionEasily check the UV intensity in the air, remind, and protect you from harm

Anti-lostWhen the Bluetooth is disconnected or the phone is out of the Bluetooth distance, the watch will alert.

Playing MP3 MusicIf you insert your TF card in it, you could play mp3 music on this watch.

PedometerCount how many steps you have walked, enjoy doing sports.

Sleep MonitorMonitor whether your sleeping is well or not.

Sedentary ReminderSet it to remind you to walk or exercise after a long time sit.

Note: This phone will only work with GSM networks: GSM 850/900/1800/1900MHz.