Screen size: 1.44 inchesInterface: USB 2.0Body memory: 128MBScreen material: IPSWearing method: wristbandAdditional features: health monitoring, information push, exercise tracking, intelligent reminders, sleep analysis, step counting, video entertainment, social entertainment, remote selfieWireless distance: 5m (inclusive) -10m (inclusive)Battery capacity: 180mAhOperation mode: touch + buttonProduct size: 40 * 47 * 9.9mmScreen resolution: 128 * 128pixelWristband Material: SiliconeSize: suitable for 125-200 mm wrist circumferenceFunction: Bluetooth callU8 Bluetooth Smart Watch Highlights:1. Watch is simple and three-dimensional2.Bluetooth connection can dial phone number on the watch anytime, anywhere; can connect Android and Apple system3. Synchronize the phone book on the smart phone to check or make a call on the watch without digging out the smart phone4. Synchronous incoming call ringing When the phone comes, the watch will ring and remind the caller and display the incoming phone number. You don't need to take a smartphone to watch the call, so you won't miss any call.5. Anti-lost function When the smart phone is dropped, more than 10 meters, the watch will ring to remind you, never worry about losing the phone again;6. SMS sync As long as you install APK software on your Android smartphone, when the SMS comes, you will be reminded and checked on your watch.7.Built-in speaker for hands-free calling, Bluetooth 3.0 module, smoother call effect8. Built-in multilingual: English, French, Spanish, Portuguese, Italian, Dutch, German, Turkish, Chinese, Russian, other languages, please contact customer service9. Main functions: bluetooth call, bluetooth sync message, bluetooth anti-lost, bluetooth music, bluetooth remote control camera, bluetooth push, Facebook and other app notifications, call reminder, alarm clock, pedometer, stopwatch