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Versa 2
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Mi Band 4
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Basic Info

Suggested Price$79.99$199$175$25
Release2018201920162019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days5 days6 months20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution80 x 160300 x 300n/a120x240
Size1.23 inches1.34 inchesn/a0.95 inches
Touchn/a
TypeIPS LCDAMOLEDn/aAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemBuild-inn/aAMAZFIT OS
Apps
Music

All Wearables