Polar M400 vs. Amazfit Cor vs. Garmin Fenix 5X vs. Garmin Vivoactive 3 vs. Amazfit T-Rex

 
M400
Cor
Fenix 5X
Vivoactive 3
T-Rex
 PolarM400Remove Buy NowAmazfitCorRemove Buy NowGarminFenix 5XRemove Buy NowGarminVivoactive 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$79.99$699$299$140
Release20142018201720172019

Activity & Fitness

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

Battery

Duration8 hours to 30 days12 daysUp to 12 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a80 x 160240 x240240 x 240360 x 360
Sizen/a1.23 inches1.2 inches1.2 inches1.3 inches
Touch
Typen/aIPS LCDNAMIPAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM10 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aBuild-in
Apps
Music

All Wearables