Garmin Vivoactive vs. Polar M600 vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Forerunner 235

 
Vivoactive
M600
Flex 2
645 Music
Forerunner 235
 GarminVivoactiveRemove Buy NowPolarM600Remove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 235Remove Buy Now

Basic Info

Suggested Price$250$330$100$450$299.99
Release20152016201620182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days2 days5 days7 days9 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution205 x 148240 x 240n/a240 x 240215 x 180
Size1.38 inches1.3 inchesn/a1.2 inches1.23 inches
Touchn/an/a
TypeLCDTFTLEDMIPMIP

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX85 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wearn/a
Apps
Music

All Wearables