Polar M600 vs. Fitbit Flex 2 vs. Fitbit Flex vs. Garmin Vivosmart 4

 
M600
Flex 2
Flex
Vivosmart 4
 PolarM600Remove Buy NowFitbitFlex 2Remove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$330$100$100$130
Release2016201620132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days5 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/aNA48 x 128
Size1.3 inchesn/aNA0.74 inches
Touchn/an/aNA
TypeTFTLEDLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aNA
Apps
Music

All Wearables