Polar M600 vs. Fitbit Flex 2 vs. Misfit Flash vs. Garmin 645 Music vs. Garmin Forerunner 45

 
M600
Flex 2
Flash
645 Music
Forerunner 45
 PolarM600Remove Buy NowFitbitFlex 2Remove Buy NowMisfitFlashRemove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$330$100$30$450$199
Release20162016201420182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days6 months7 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolution240 x 240n/an/a240 x 240208 x 208
Size1.3 inchesn/an/a1.2 inches1.04 inches
Touchn/an/an/a
TypeTFTLEDn/aMIPLCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM3 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aBuilt-in
Apps
Music

All Wearables