1、Smart sleep monitor: Strong algorithms to record sleep status -- You can check your sleep status through APP anytime, and improve your sleep quality targetedly and correct the wrong way of sleeping. 2、All-day heart rate record: Using imported dynamic heartbeat rate sensor, heart rate data can be detected in real time during exercise. You can understand movement heat rate in real time and make sports more efficiently. 3、One month long standby: With 120Ma ultra large battery, a single full charge can be standby for 30 days, can be used 15 days normally. One full charge only takes 4 hours. 4、Real-time notifications: The screen will show the name of phonebook when calls incoming, message pushed with slight vibration. You will never worry about missing the important calls even if the phone is not around. 5、Perfect craft of water-resistant: You can wear it when you are washing your hands or taking a shower, also it can be against the dust, cosmetics, and sweat corrosion. Description: The fully transparent smart Bluetooth watch, give you a different feeling. This is a powerful smart   Bluetooth watch, not only to test your heart rate, but also track your all-day activities. Also you will not miss your important calls or messages because of the real-time notifications  (Including Text message, QQ, Wechat, Facebook, Skype, Twitter, Line, WhatsApp message). You deserve it! Features: 1. Smart sleep monitor: Strong algorithms to record sleep status -- You can check your sleep status through APP anytime, and improve your sleep quality targetedly and correct the wrong way of sleeping. 2. All-day heart rate record: Using imported dynamic heartbeat rate sensor, heart rate data can be detected in real time during exercise. You can understand movement heat rate in real time and make sports more efficiently. 3. One month long standby: With 120Ma ultra large battery, a single full charge can be standby for 30 days, can be used 15 days normally. One full charge only takes 4 hours. 4. Real-time notifications: The screen will show the name of phonebook when calls incoming, message pushed with slight vibration. You will never worry about missing the important calls even if the phone is not around. 5. Perfect craft of water-resistant: You can wear it when you are washing your hands or taking a shower, also it can be against the dust, cosmetics, and sweat corrosion. Note: Please do NOT SOAK the bracelet into water or other liquid. Specifications: Band Color: Blue Protocol: Dialog DA14580 Memory: 128K Flash: 16M Display Screen: 1 "LCD 128 * 86 (ultra-low power transparent LCD screen) Bluetooth: Bluetooth 4.0 BLE transmission standard Sensor: green light dynamic heart rate sensor + gravity sensor Button: single touch button Battery: 120mAh Standby Time: using for 10 days, standby for30 days Charging Method: Magnetic contact point charge Applicable System: Android 4.3 and above, for Apple ios 7.0 and above Waterproof Rating: IP66 Size: 245 * 30 * 7.5mm / 9.65 * 1.18 * 0.30inch Package Weight: 270g Package included: 1x Smart Wristband 1x USB Cable 1x Manual