Polar M600 vs. Michael Kors Grayson vs. Xiaomi Mi Band 3 vs. Michael Kors Grayson vs. Garmin Vivosmart 4 vs. Apple Watch 7

 
M600
Grayson
Mi Band 3
Grayson
Vivosmart 4
Watch 7
 PolarM600Remove Buy NowMichael KorsGraysonRemove Buy NowXiaomiMi Band 3Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$330$350$44.95$350$130$429
Release201620182018201820182021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days24 hours20 days24 hours7 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240453 x 454128 x 80453x45448 x 128396 x 484
Size1.3 inches1.39 inches0.78 inches1.39 inches0.74 inches1.9 inches
Touchn/a
TypeTFTAMOLEDOLEDAMOLEDOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX81 ATM5 ATM1 ATM5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid WearAndroid WearWatchOS 8
Apps
Music

All Wearables