Fitbit Alta vs. Polar Loop 2 vs. Garmin Fenix 5X vs. Polar A370 vs. Amazfit T-Rex

 
Alta
Loop 2
Fenix 5X
A370
T-Rex
 FitbitAltaRemove Buy NowPolarLoop 2Remove Buy NowGarminFenix 5XRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$120$699$179.95$140
Release20162015201720172019

Activity & Fitness

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

Battery

Duration5 days8 days (without notifications)Up to 12 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/an/a240 x240160 x 80360 x 360
Sizen/an/a1.2 inches1.18 inches1.3 inches
Touchn/a
TypeOLEDLEDNATFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a2 ATM10 ATMWR305 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aBuild-in
Apps
Music

All Wearables