Polar Loop 2 vs. Polar M430 vs. Garmin Forerunner 235 vs. Garmin Vivosmart 3 vs. Amazfit T-Rex

 
Loop 2
M430
Forerunner 235
Vivosmart 3
T-Rex
 PolarLoop 2Remove Buy NowPolarM430Remove Buy NowGarminForerunner 235Remove Buy NowGarminVivosmart 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$120$255$299.99$139.99$140
Release20152017201720172019

Activity & Fitness

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

Battery

Duration8 days (without notifications)30 hours9 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128x128215 x 18064 x 128360 x 360
Sizen/a1.4 inch1.23 inchesNA1.3 inches
Touch
TypeLEDLCDMIPOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMWR305 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aBuild-in
Apps
Music

All Wearables