Garmin Fenix 3 vs. Polar M400 vs. Fitbit Charge HR vs. Diesel On Full Guard 2.5 vs. HTC re Grip

 
Fenix 3
M400
Charge HR
On Full Guard 2.5
re Grip
 GarminFenix 3Remove Buy NowPolarM400Remove Buy NowFitbitCharge HRRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$500$200$150$325$199
Release20152014201520182020

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks8 hours to 30 days5 days4 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
Resolution218 x 218n/aNA454x454160 x 32
Size1.2 inchesn/aNA1.39 inches1.8 inches
TouchNA
TypeChroma LEDn/aOLEDPMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM3 ATM1 ATM3 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNAWear OSNA
Apps
Music

All Wearables