Polar M400 vs. Amazfit Pace vs. Motorola Moto 360 (1st Gen) vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
M400
Pace
Moto 360 (1st Gen)
Forerunner 45
T-Rex
 PolarM400Remove Buy NowAmazfitPaceRemove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$130$150$199$140
Release20142017201420192019

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days1 day7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 300320 x 260208 x 208360 x 360
Sizen/a1.34 inches1.56 inches1.04 inches1.3 inches
Touch
Typen/aTFT LCDLCDLCDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP67IP675 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryAndroid WearBuilt-inBuild-in
Apps
MusicNA

All Wearables