Original Xiaomi Mi Band 3 Fitness Tracker Smart Bracelet, 50m, (Black)

Full new 0.78 inch OLED touch screen, one click one press, easy to operate. 

50m swimming water and dust resistance rating: Protected against complete submersion in water, you don't need to worry that the activity tracker will be broken while swimming, washing, or showing. But not for saunas and diving. 

Comprehensive fitness tracking: Tracks your daily steps, distance traveled, calories burned, heart rate activity. 

Target reached remind: When you complete the goal of the day, Xiaomi band 3 will remind you today has reached the target, motivating you to be a harder and more fortunate person. 

Support multi-function: Instant message viewing, Caller ID / Reject, vibration alarm, Heart rate monitoring, Sleep monitoring, Real-time exercise data display, WeChat red envelope reminder, Sedentary reminder, Event reminder, Find your phone, Unlock your Android phone. 

Sensor: Triaxial acceleration sensor, PPG heart rate sensor. 

Anti-lost design: Firmly lock the body, not easy to lose. 

Adopt with thermoplastic elastomer material, comfortable to wear. 

The bracelet body is only 8.5 grams, with a high energy density 110mAh lithium polymer battery. It can life up to 20 days or more, even if it is used frequently. 

Equipment requirements: Bluetooth 4.0 Android 4.4 or iOS9.0 and above mobile phones. 

Unlock function support models: Support MIUI systems based on Android 4.4 or above, or Android 5.0 or above, and supporting Smart Lock function models.