Fitbit Flex vs. Garmin Vivofit 4 vs. Fitbit Inspire HR vs. Amazfit GTS vs. Garmin VivoActive 4

 
Flex
Vivofit 4
Inspire HR
GTS
VivoActive 4
 FitbitFlexRemove Buy NowGarminVivofit 4Remove Buy NowFitbitInspire HRRemove Buy NowAmazfitGTSRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$79.95$99$150$349
Release20132018201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 year5 days14 days8 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNA88 x 88139 x 60348 x 442260 x 260
SizeNANA1.4 inches1.65 inches1.3ionches
TouchNA
TypeLEDNAOLEDAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATM5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNAFitbit OSWear OSWear OS
Apps
Music

All Wearables