Fitbit Flex 2 vs. Garmin Vivosmart HR vs. Amazfit Stratos vs. Fitbit Charge 3 vs. Garmin Vivosport

 
Flex 2
Vivosmart HR
Stratos
Charge 3
Vivosport
 FitbitFlex 2Remove Buy NowGarminVivosmart HRRemove Buy NowAmazfitStratosRemove Buy NowFitbitCharge 3Remove Buy NowGarminVivosportRemove Buy Now

Basic Info

Suggested Price$100$170$199$150$199
Release20162015201820182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days5 days7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/a160 x 68320 x 30066 x 1872 x 144
Sizen/a1.08 inches1.34 inches.721 inchesNA
Touchn/a
TypeLEDn/aOLEDOLEDMIP

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/aProprietaryNA
Apps
Music

All Wearables