Xiaomi Mi Band has a 30-day battery life with 5 fundamental functions of Path record, sleep monitoring, intelligent alarm clock, call reminder, searching. It has the ability to unlock your Xiaomi with proximity security. This means the device and Xiaomi smartphone will connect based on the proximity of the Mi Band. It will track your running and walking distance as well. The smart wristband will also track your sleeping metrics and will serve as an alarm clock.

The sensor part of Mi Band made from magnesium alloy surface and the polycarbonate, metal part on frosted texture, has a good effect to resist the wear. The wrist strap part adopts the dow corning TPSiV material, has good elasticity, can be used in environment of -20°C-70°C. Meanwhile it has ultraviolet UV resistance, antibacterial properties, corrosion resistance functions, can effectively reduce allergy.

It supports waterproof IP67 level, so you can take it off and wash it if it is dirty.

• 30-day standby power
• Fitness monitor and sleep tracker
• Sleep-cycle smart alarm
• Unlock your phone without a password (Only supports Xiaomi Mi4, Xiaomi Mi3 with Android 4.4 MIUI)
• Call Reminder: The band will remind you through vibration and flashing light when you do not answer calls for some time
• Water resistant(IP67): You do not worry about taking it with you to the shower
• Adjustable Length: 157mm-205mm; Total Length: 230mm
• With retail packaging  

Package included:

• 1 x Xiaomi Smart Band Mi Band Wristband - Black