1,The watch adopts premium CPU which provides many useful functions, the built-in G-sensor is sensitive to your wrist motions for recording your workout data. 2,The watch is versatile can be used as outdoor cycling odometer, gym exercising tracker, heart rate and sleep monitor and remote controller of cellphones. 3,The material is good quality TPU, safe, skin-friendly, wearable and easy to clean, the wristband is adjustable for suitable for most people. 4,Professional waterproof feature, waterproof grade is IP67, enough for daily uses. 5,Fashionable design with deluxe color and details, suitable for both men and women in all fields. Features: 1. The watch adopts premium CPU which provides many useful functions, the built-in G-sensor is sensitive to your wrist motions for recording your workout data. 2. The watch is versatile can be used as outdoor cycling odometer, gym exercising tracker, heart rate and sleep monitor and remote controller of cellphones. 3. The material is good quality TPU, safe, skin-friendly, wearable and easy to clean, the wristband is adjustable for suitable for most people. 4. Professional waterproof feature, waterproof grade is IP67, enough for daily uses. 5. Fashionable design with deluxe color and details, suitable for both men and women in all fields. Specification: Material: TPU Color: Black CPU: BT V4.0LE Motor: Built-in G-Sensor: Built-in Charging Method: USB Charging (5V) Waterproof Rate: IP67 Battery Capacity: 90 mAh Battery Working Time: About 7 days APP: i-Fit (App Store); iFit (Google Play) Operation System: Android 4.3 and iOS 8.0 Bluetooth: 4.0 Interface: USB 2.0 Total Length: Approx. 224 mm / 8.81 inch Watchband Width: Approx. 1.1 mm / 0.43 inch Watch Size: Approx. 21 x 50 mm / 0.82 x 1.96 inch Weight: Approx. 150 g Function: Heart rate monitor: Alert when heart rate is over the maximum standard or below the minimum standard. Sleeping monitor: Automatically turn into sleeping mode. Sedentary alarm: Free to set the time to remind to stand up. Mode: Cycling and Walking and Jumping Jacks and Rope Skipping and Running Machine and Sit-ups (records data like distance, calorie consumption, steps, etc) APP Fitness Tracker:  Supports upgrade fitness data to APPs, time, distance, calorie consumption, etc. Time: 12/24 time display, week, date SMS Notification: Phone calls and message and mainstream APPs - facebook, twitter, QQ, wechat, skype, whatsapp Lost-Reminder: Yes Alarm: Yes - Vibration Remote control of phone camera: Yes Remote control of phone music player: Yes Auto Screen On: Only turn your wrist around Package List: 1 x Sports Watch 1 x USB Cable 1 x Charger 1 x Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.