The product has GPS Motion Trail, Bicycle-riding/ Running Mode, Call Reminder, Sleep Monitoring, Music/ Camera Control, Phone Location functions. It is very convenientfor your life. Features: Only for IOS 7.0 Android 4.3 Bluetooth 4.0 or Above Smartphone. GPS Motion Trail: Bicycle-riding/ running mode and multi-sports mode. Full character on screen display. Call reminder: Display of contact person's name. PK with wechat interconnected friends. The sports data are shared with social platform synchronously. It also has Sleep Monitoring Music/ Camera Control and Phone Location, etc. Perfect design, convenient to take along. Note: Before you use it, you must download APP. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Before you purchase, please confirm the size of band suitable to you or not. Specifications: Model: E07 Screen: OLED Display Band material: TPU Color: White, Black (Optional) Battery: 90mAH Watchband length: 170mm-220mm Language: English, Chinese. Product size: Approx. 3.8 * 3.8 * 1cm / 9.8 * 0.7 * 0.3oz Product weight: Approx. 11g / 0.38oz Package size: Approx. 12 * 9.6 * 5.3cm / 3.9 * 3.1 * 0.9in Package weight: Approx. 131g / 4.62oz Package List: 1 * Smart watch subject 1 * Band 1 * Charger station 1 * User manual(English)