Xiaomi Mi Band 2 vs. Michael Kors Access Sofie HR vs. Xiaomi Mi Band 4 vs. Apple Watch 7

 
Mi Band 2
Access Sofie HR
Mi Band 4
Watch 7
 XiaomiMi Band 2Remove Buy NowMichael KorsAccess Sofie HRRemove Buy NowXiaomiMi Band 4Remove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$23$395$25$429
Release2016201920192021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Stepsn/a
Swim

Battery

Duration20 hours2 days20 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a390 x 390120x240396 x 484
Size0.42 inches1.19 inches0.95 inches1.9 inches
Touch
TypeOLEDOMOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP670.3 ATM5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSAMAZFIT OSWatchOS 8
Apps
Music

All Wearables