Polar M600 vs. Polar Loop 2 vs. Fitbit Flex vs. Garmin Vivofit 4 vs. Polar Loop

 
M600
Loop 2
Flex
Vivofit 4
Loop
 PolarM600Remove Buy NowPolarLoop 2Remove Buy NowFitbitFlexRemove Buy NowGarminVivofit 4Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$330$120$100$79.95$100
Release20162015201320182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 days (without notifications)5 days1 year5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/aNA88 x 88NA
Size1.3 inchesn/aNANANA
Touchn/aNA
TypeTFTLEDLEDNALED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX82 ATM1 ATM5 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aNANA
Apps
Music

All Wearables