Fitbit Alta vs. Polar Loop 2 vs. Amazfit Stratos vs. Garmin Fenix 5x Plus vs. Amazfit T-Rex

 
Alta
Loop 2
Stratos
Fenix 5x Plus
T-Rex
 FitbitAltaRemove Buy NowPolarLoop 2Remove Buy NowAmazfitStratosRemove Buy NowGarminFenix 5x PlusRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$120$199$850$140
Release20162015201820182019

Activity & Fitness

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

Battery

Duration5 days8 days (without notifications)5 days20 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a320 x 300240 x 240360 x 360
Sizen/an/a1.34 inches1.2 inches1.3 inches
Touchn/a
TypeOLEDLEDOLEDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a2 ATM5 ATM10 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aProprietaryWear OSBuild-in
Apps
Music

All Wearables