Polar Loop 2 vs. Garmin Forerunner 935 vs. Garmin Vivoactive 3 vs. Amazfit T-Rex vs. HTC re Grip

 
Loop 2
Forerunner 935
Vivoactive 3
T-Rex
re Grip
 PolarLoop 2Remove Buy NowGarminForerunner 935Remove Buy NowGarminVivoactive 3Remove Buy NowAmazfitT-RexRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$120$500$299$140$199
Release20152017201720192020

Activity & Fitness

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

Battery

Duration8 days (without notifications)Up to 2 weeks7 days20 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240240 x 240360 x 360160 x 32
Sizen/a1.2 inches1.2 inches1.3 inches1.8 inches
Touch
TypeLEDLCDMIPAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM5 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aBuild-inNA
Apps
Music

All Wearables