Garmin Forerunner 225 vs. Polar M600 vs. Fitbit Flex 2 vs. Garmin Vivosmart 4 vs. HTC re Grip

 
Forerunner 225
M600
Flex 2
Vivosmart 4
re Grip
 GarminForerunner 225Remove Buy NowPolarM600Remove Buy NowFitbitFlex 2Remove Buy NowGarminVivosmart 4Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$300$330$100$130$199
Release20152016201620182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks2 days5 days7 days5 hours to 2.5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution180 x 180240 x 240n/a48 x 128160 x 32
Size1 inch1.3 inchesn/a0.74 inches1.8 inches
Touchn/an/a
Typen/aTFTLEDOLEDPMOLED

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX85 ATM5 ATMIP57

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aAndroid Wearn/aNA
Appsn/a
Musicn/a

All Wearables