Garmin Forerunner 735XT vs. Polar M600 vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Fitbit Flex

 
Forerunner 735XT
M600
Forerunner 935
645 Music
Flex
 GarminForerunner 735XTRemove Buy NowPolarM600Remove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$450$330$500$450$100
Release20162016201720182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days2 daysUp to 2 weeks7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution215 x 180240 x 240240 x 240240 x 240NA
Size1.23 inches1.3 inches1.2 inches1.2 inchesNA
Touchn/an/aNA
Typen/aTFTLCDMIPLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX85 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNA
Apps
Music

All Wearables