Garmin Forerunner 225 vs. Polar M400 vs. Garmin Forerunner 235 vs. Fitbit Flex vs. HTC re Grip

 
Forerunner 225
M400
Forerunner 235
Flex
re Grip
 GarminForerunner 225Remove Buy NowPolarM400Remove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$300$200$299.99$100$199
Release20152014201720132020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks8 hours to 30 days9 days5 days5 hours to 2.5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/a215 x 180NA160 x 32
Size1 inchn/a1.23 inchesNA1.8 inches
TouchNA
Typen/an/aMIPLEDPMOLED

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM5 ATM1 ATMIP57

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aNANA
Appsn/a
Musicn/a

All Wearables