1、610 mAh battery, long battery life, can support watch standby for about 33 months (Battery life depends on the frequency of use of the user). 2、Activity tracking device, monitor your sport conditions all day and provided with current result information, such as traveled distances, calories burned, etc. 3、Bluetooth 4.0, download the app called ''Sport+'', helps you to connect your phone to smartwatch. (APP can be downloaded in all major application stores) 4、Smart notification, after the phone and watch are connected, when the phone receives a news such for Twitter, for Facebook, etc., the watch will alert you by sounds, not missing any important calls or messages. 5、Compatible for iOS and for Android systems, extremely practical and versatile (requires for iOS 7.0+ and for Android 4.3+) 6、Professional manufacturing, stable performance and high reliability. Condition: 100% brand new Item type: Smartwatch Material: DLC+TPU Weight: Approx. 157g Brand: Zeblaze Model: for VIBE 3 Type: Smartwatch Dial and watchcase material: DLC (drilled carbon coating) Strap material: TPU (26mm)Screen material: glass Bluetooth version: Bluetooth 4.0 APP: Sport + Waterproof rating: IP67 50m / 164ft (not suitable for hot water, steam or swimming) Screen size: 1.24 inches Screen type: FSTN / full viewing angle (visible to sunlight) Compatibility: for Android 4.3 + / for iOS 7.0+ Battery type: built-in CR2450 Battery capacity: 610mah Battery life: about 18-33 months (depending on the user's frequency of use) Languages: Chinese, English, French, Italian, German, Spanish, Japanese, etc.Built-in 610mAh battery, extremely strong endurance. Track your activity and exercise throughout the day to help you understand your healthy. IP67 protection grade, no need to worry about rainy days (not suitable for hot water or swimming).APP connection steps 1. Turn on the watch 2. Open the APP 3. Press the "Device" button of the APP 4. Press the "binding" button, the APP will search for smart watches 5. Select your smartwatch and it will connect to your phone. 1 x Smartwatch 1 x Instruction 1 x Accessory bag