Fitbit Alta HR vs. Garmin Vivofit 4 vs. Polar A370 vs. Amazfit T-Rex vs. Fitbit Inspire 3

 
Alta HR
Vivofit 4
A370
T-Rex
Inspire 3
 FitbitAlta HRRemove Buy NowGarminVivofit 4Remove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$150$79.95$179.95$140$100
Release20172018201720192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days1 yearUp to 3 days20 days10 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128 x 3688 x 88160 x 80360 x 36032x18
Size1.4 inchesNA1.18 inches1.3 inches46 inches
Touch
TypeOLEDNATFT LCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWR305 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemBuild-in
Apps
Music

All Wearables