• Original Mi band 2 
• 0.42inch OLED display screen with touchpad
• Support Heart rate monito
• Gesture Wake up Screen
• Passometer,Fitness Tracker,Sleep Tracker,Message Reminder,Call Reminder
• Water resistant (IP67)
• 20-day standby power
• Sleep-cycle smart alarm
• With a Dialog II 4.0 bluetooth chip, ADI sensor
• Running MIUI Android 4.4 and above versions; For iphone 4s/5/5s/6/plus ios 7.0 and above
• Unlock your Mi phone without a password

Devices requirements

Bluetooth 4.0  Android 4.4 or iOS >= 7.0 phones

Using with Mi Fit APP
Android APP Download Link: http://app.mi.com/details?id=com.xiaomi.hm.health