Garmin Vivosmart HR vs. Polar Loop 2 vs. Garmin Vivosmart 3 vs. Amazfit GTR vs. Amazfit T-Rex

 
Vivosmart HR
Loop 2
Vivosmart 3
GTR
T-Rex
 GarminVivosmart HRRemove Buy NowPolarLoop 2Remove Buy NowGarminVivosmart 3Remove Buy NowAmazfitGTRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$170$120$139.99$199$140
Release20152015201720192019

Activity & Fitness

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

Battery

Duration5 days8 days (without notifications)5 days24 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 68n/a64 x 128454 x 454360 x 360
Size1.08 inchesn/aNA1.39 inches1.3 inches
Touch
Typen/aLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM2 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuild-inBuild-in
Apps
Music

All Wearables