Garmin Fenix 3 vs. Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. Garmin Fenix 5X vs. Amazfit T-Rex

 
Fenix 3
Moto 360 (2nd Gen)
M400
Fenix 5X
T-Rex
 GarminFenix 3Remove Buy NowMotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowGarminFenix 5XRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$500$300$200$699$140
Release20152015201420172019

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks1.5 days8 hours to 30 daysUp to 12 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218360 x 325 or 360 x 330n/a240 x240360 x 360
Size1.2 inches1.37 inches or 1.56 inchesn/a1.2 inches1.3 inches
Touch
TypeChroma LEDLCDn/aNAAMOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATMIP673 ATM10 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wearn/aBuild-in
Apps
Musicn/a

All Wearables