**Bluetooth Pulsera Inteligente V4 Xiaomi Mi Band Light-sensiti

1. Compatible with Bluetooth version 4.0 Android 4.4 or above and iOS 7.0 or above devices(for example, Xiaomi: Mi 4, Mi 4c, Mi 3, Mi 2, Mi 2S, Mi 2A, Mi 1S, Redmi Note 2, Redmi Note, Mi Note; Apple: iPhone 6s Plus, iPhone 6s, iPhone 6 Plus, iPhone 6, iPhone 5C, iPhone 5, iPhone 4S). 
2. Heart Rate Monitor: The custom heart rate sensor in it can help gauge your intensity during workouts to improve overall calorie tracking. 
3. Sport tracker: become your private management experts, monitor your daily movement, check the number of steps, help you to achieve your health goals. 
4. Sleep Monitor: this item can record and analyse your sleep quality automaticly if you wear it to sleep. 
5. Call Reminder: when calls incoming, your band will vibrate and light up. 
6. Anti-lost: just click "searching the band" on your phone when you can not see your band, your band will vibrate and light in the effective bluetooth distance. 
7. Free password unlocking: you can unlock your phone with this band once you bind your Xiaomi account number to the band, very convenient and safe. (Please note that only Xiaomi Mi 3, Xiaomi Mi 4, Xiaomi Redmi Note 4G which uprated to Android4.4 or above and Bluetooth 4.0 Android 5.0 smart phones support this function currently). 
8. IP67 waterproof: durable and convenient for your daily use. 
9. Band materials: Magnalium + PC, high quality metal surface and soft wrist strap.