Garmin Forerunner 935 vs. Fitbit Alta HR vs. Fitbit Charge 3 vs. Polar A370 vs. Amazfit T-Rex

 
Forerunner 935
Alta HR
Charge 3
A370
T-Rex
 GarminForerunner 935Remove Buy NowFitbitAlta HRRemove Buy NowFitbitCharge 3Remove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$500$150$150$179.95$140
Release20172017201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

DurationUp to 2 weeks7 days7 daysUp to 3 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution240 x 240128 x 3666 x 18160 x 80360 x 360
Size1.2 inches1.4 inches.721 inches1.18 inches1.3 inches
Touch
TypeLCDOLEDOLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNABuild-in
Apps
Music

All Wearables