Polar M600 vs. Fitbit Flex 2 vs. Garmin Forerunner 235 vs. Garmin Forerunner 45 vs. HTC re Grip

 
M600
Flex 2
Forerunner 235
Forerunner 45
re Grip
 PolarM600Remove Buy NowFitbitFlex 2Remove Buy NowGarminForerunner 235Remove Buy NowGarminForerunner 45Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$330$100$299.99$199$199
Release20162016201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days9 days7 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/a215 x 180208 x 208160 x 32
Size1.3 inchesn/a1.23 inches1.04 inches1.8 inches
Touchn/an/a
TypeTFTLEDMIPLCDPMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM5 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aBuilt-inNA
Apps
Music

All Wearables