Polar M600 vs. Garmin Forerunner 935 vs. Fitbit Flex vs. Garmin Forerunner 45

 
M600
Forerunner 935
Flex
Forerunner 45
 PolarM600Remove Buy NowGarminForerunner 935Remove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$330$500$100$199
Release2016201720132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 daysUp to 2 weeks5 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240240 x 240NA208 x 208
Size1.3 inches1.2 inchesNA1.04 inches
Touchn/aNA
TypeTFTLCDLEDLCD

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 WearNABuilt-in
Apps
Music

All Wearables