Xiaomi Miband 2

OLED Display - View time, step count, heart rate and more
The Mi Band 2 comes with an OLED which displays the Time, number of steps, Heart Rate, distance walked, calories burned, battery info and other data. You can see all these data by lifting your left wrist or by using the capacitive button on the Mi Band 2 capsule. You could also switch between various display items without having to open the Mi Fit App in your phone. The best part is, you can also customize which data content can be displayed on the Mi Band 2 display.
Improved Pedometer Algorithm
Mi Band 2 comes with a power efficient ADI accelerometer with improved algorithms for more accuracy in steps counting, and built in optical heart rate sensor which calculates your heart rate. It comes with a 2nd gen Bluetooth 4.0 for faster and stable connection with your phone.
The OLED is UV coated, scratch resistant aand anti - fingerprint display. Display is elegant and bright enough and could see the display clearly under the sun light. 
Improved Battery Life

Real time heart rate
Now check your heart rate on real time with out opening the Mi Fit App. Just lift your wrist or touch on the capacitive button on the Mi Band 2 display and your heart rate displays instantly on the the screen. Mi Band 2 can accurately read your heart beat on real time basis.
Sedentary Alerts
Are you sitting for too long ? Are you working overtime in your office ? Now Mi Band 2 automatically monitors your physical activity and alerts you when you are sedentary for long time. It alerts you with a vibration reminding you to go out and have some physical activity along with some fresh air 
Monitors the pace of your running
Runing is one of the popular fitness activities. Now when you run with Mi Band 2, it measures the pace of your run, monitors you Heart beat and it displays on the screen of Mi Band 2. Mi Fit generates the targeted run, recommends step program, suggests the required weight loss and ultimately increases your health efficiency.
Phone unlocking made easier
Unlocking smartphone becomes easier. You can unlock your smartphone instantly with your Mi Band 2. Each Mi Band 2 has an unique ID and when it brought closer to the smartphone, it unlocks your phone. Mi Band 2 also shows the unlocking status on it's display. Stay more secure with Mi Band 2 !
Monitors your sleep
Mi Band 2 starp is more skin friendly now and also light weight which helps you to wear it during nights and have a comfortable sleep. It monitors your sleep and shows the light sleep & deep sleep in the Mi Fit.
IP67 Water Resistant , Colorful band options.
Just like the previous versions of Mi Band, Mi Band 2 is IP67 certified water resistant and you don't need to worry of using it in water. You can happily use under shower, while you swim!
Other features: Vibration on Calls, SMS, App Notifications, Alarm Clock
Just like the previous versions of Mi Band, Mi Band 2 vibrates on getting any calls, SMS, app notifications and also vibrates when you set alarm colock.
| Battery | 70 mAh, Lithium polymer 20 days battery life |
| Weight | 7.0 g |
| Water Resistant | IP67 Standards |
| Intenral Config. | 0.42" OLED Display 2nd Gen Bluetooth 4.0 ADI ultra-low power acceleration sensors & Photoelectric sensors |
| Strap Size | 235 mm total length 155 - 210 mm adjustable length Made of Thermoplastic elastomers, aluminium |
| Compatibility | Requires Bluetooth 4.0 Android 4.4 or iOS 7.0 and above: Mi 2 / 2S / 2A, Mi 3, Mi 4, Mi Note, Mi 4c, Mi 4i, Mi 5, Mi 4S, Mi Max, Redmi 1S, Redmi 2 / 2A / 3, Redmi Note / Note 2 / Note 3 iOS 7.0 or later: iPhone 4s / 5 / 5c / 5s / 6/6 Plus / 6s / 6s Plus / SE For Smart Unlocking feature support: [MIUI 6, 7, 8] Mi 2 / 2S / 2A, Mi 3, Mi 4, Mi Note, Mi 4c, Mi 5, Mi 4S, Mi Max, Redmi 1S, Redmi 2 / 2A / 3, Redmi Note / Note 2 / Note 3 Smartphones with Android 5.0 or above & Bluetooth 4.0 |