Fitbit Flex 2 vs. Garmin Vivofit 3 vs. Fitbit Charge 3 vs. Garmin Vivosmart HR Plus vs. Amazfit GTR

 
Flex 2
Vivofit 3
Charge 3
Vivosmart HR Plus
GTR
 FitbitFlex 2Remove Buy NowGarminVivofit 3Remove Buy NowFitbitCharge 3Remove Buy NowGarminVivosmart HR PlusRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$100$100$150$179$199
Release20162016201820172019

Activity & Fitness

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

Battery

Duration5 days1 year7 days5 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/a64 x 6466 x 18160 x 68454 x 454
Sizen/a0.55 inches.721 inches0.5 inches x 0.8 inches1.39 inches
Touchn/a
TypeLEDn/aOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNANABuild-in
Apps
Music

All Wearables