Samsung Galaxy Watch vs. Fitbit Charge 3 vs. Fitbit Charge HR vs. Polar A370 vs. Amazfit T-Rex

 
Galaxy Watch
Charge 3
Charge HR
A370
T-Rex
 SamsungGalaxy WatchRemove Buy NowFitbitCharge 3Remove Buy NowFitbitCharge HRRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$330$150$150$179.95$140
Release20182018201520172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days7 days5 daysUp to 3 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
WindowsNot yet

Connectivity

Bluetooth
CellularNA
GPS
NFCNA
Wi-Fi

Display

Color
Resolution360 x 36066 x 18NA160 x 80360 x 360
Size1.2 inches or 1.3 inches.721 inchesNA1.18 inches1.3 inches
TouchNA
TypeAMOLEDOLEDOLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizen OSNANABuild-in
Apps
MusicSpotify

All Wearables