Polar A360 vs. Diesel On Full Guard vs. Fitbit Charge 3 vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
A360
On Full Guard
Charge 3
Forerunner 45
T-Rex
 PolarA360Remove Buy NowDieselOn Full GuardRemove Buy NowFitbitCharge 3Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$325$150$199$140
Release20152017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days1 day7 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution160 x 80454 x 45466 x 18208 x 208360 x 360
Size1.18 inches1.4 inches.721 inches1.04 inches1.3 inches
Touch
Typen/aOMOLEDOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR30IP675 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0NABuilt-inBuild-in
Apps
Music

All Wearables