Main Features:
- Bluetooth Synchronization
With Bluetooth 4.0, this smart watch is available for smartphones with Bluetooth functions.
- OLED Touch Screen
Just touch the circular button gently, the OLED screen will display current time, steps, heart rate, distances, calories, etc.
- Heart Rate Monitor
It can dynamic-static monitor your heart rate, provide data for you at any time.
- Incoming Calls / APP Message Alert
When someone calls or sends any messages in your phone, the watch will remind you via vibrating, so you will never miss them!
- Sleeping Monitoring
Accurately monitor total effective sleeping time and motions time every night, also APP will give you periodical evaluation, help you develop good living habits.
- Sport Monitoring
This smart watch can record steps, calories and distance. Let you know your sports data, adjust your exercise program and get a healthier life!
- Intelligent Alarm Function
Wake you up every morning, will not be late for work; idle alert to remind you with vibration, stretch your legs after working for a long time.
- No Passcodes Required
Every Mi Band 2 have an exclusive ID, when your smartphone closes with the band, your phone will be unlocked, just identify yourself with Mi Band 2.
- IP67 Waterproof
The IP67 waterproof allows the bracelet to be held in the water for a maximum of 30 minutes at a depth of 1 meter. ( Don't wear the bracelet when diving )
- Full Compatibility
Support Android 4.4 or above and iOS 7.0 or above with Bluetooth 4.0.
- Download APP
You can search the name "MI FIT" in the "App Store" or "Google Play" to download the APP combined with Mi Band 2 to enjoy happy sports time

Internal configuration:
Heart rate sensor: Optical heart rate sensor
Measuring method: photoelectric volume pulse wave plethysmography (PPG)
Bluetooth chip: Dialog top Bluetooth chip (Bluetooth 4.0)
Sensor: ADI military gravity sensor


Battery
Type of battery: Lithium polymer battery
Battery Capacty: 70mAh
Standby time: 20 days
Charging time: About 3 hours

General:
Brand: XIAOMI MI
Bluetooth version: Bluetooth 4.0
Waterproof: IP rating: IP67
Screen type: OLED
Operating mode: Touch Screen
Compatible OS: Android, IOS (Android 4.4 / IOS 7.0 and above system)

Package include:
1 Original Xiaomi Mi Band 2 Heart Rate Monitor Smart Wristband - Black
1 Charging Cable
1 Manual