Polar Loop 2 vs. Garmin Fenix 5s Plus vs. Fitbit Alta HR vs. Polar A370 vs. Amazfit T-Rex

 
Loop 2
Fenix 5s Plus
Alta HR
A370
T-Rex
 PolarLoop 2Remove Buy NowGarminFenix 5s PlusRemove Buy NowFitbitAlta HRRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$120$799$150$179.95$140
Release20152018201720172019

Activity & Fitness

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

Battery

Duration8 days (without notifications)7 days7 daysUp to 3 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240128 x 36160 x 80360 x 360
Sizen/a1.2 inches1.4 inches1.18 inches1.3 inches
Touch
TypeLEDMIPOLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM10 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSBuild-in
Apps
Music

All Wearables