Polar M600 vs. Apple Watch Series 2 vs. Fitbit Flex vs. Garmin Vivofit 4 vs. Xiaomi Mi Band 4

 
M600
Watch Series 2
Flex
Vivofit 4
Mi Band 4
 PolarM600Remove Buy NowAppleWatch Series 2Remove Buy NowFitbitFlexRemove Buy NowGarminVivofit 4Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$330$269$100$79.95$25
Release20162016201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days18 hours5 days1 year20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240340 x 272 or 390 x 312NA88 x 88120x240
Size1.3 inches1.5 inches or 1.65 inchesNANA0.95 inches
Touchn/aNA
TypeTFTAMOLEDLEDNAAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearWatch OSNAAMAZFIT OS
Apps
Music

All Wearables