Apple Watch Series 3 vs. Fitbit Charge HR vs. Garmin Vivosmart 3 vs. LG G Watch R vs. Amazfit T-Rex

 
Watch Series 3
Charge HR
Vivosmart 3
G Watch R
T-Rex
 AppleWatch Series 3Remove Buy NowFitbitCharge HRRemove Buy NowGarminVivosmart 3Remove Buy NowLGG Watch RRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$329$150$139.99$300$140
Release20172015201720142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days5 days2 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNAn/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312NA64 x 128320 x 320360 x 360
Size1.5 inches or 1.65 inchesNANA1.3 inches1.3 inches
TouchNA
TypeAMOLEDOLEDOLEDP-OLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM5 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4NAAndroid WearBuild-in
Apps
Music

All Wearables