Garmin Vivoactive HR vs. Fitbit Flex 2 vs. Amazfit Stratos vs. Garmin Forerunner 45 vs. Amazfit GTR

 
Vivoactive HR
Flex 2
Stratos
Forerunner 45
GTR
 GarminVivoactive HRRemove Buy NowFitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$250$100$199$199$199
Release20162016201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days5 days5 days7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution148 x 205n/a320 x 300208 x 208454 x 454
Size1.38 inchesn/a1.34 inches1.04 inches1.39 inches
Touchn/a
Typen/aLEDOLEDLCDAMOLED

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/aProprietaryBuilt-inBuild-in
Apps
Music

All Wearables