Fitbit Flex 2 vs. Amazfit Stratos vs. Garmin Forerunner 45 vs. Fossil Gen 5 Smartwatch Carlyle vs. Garmin VivoActive 4

 
Flex 2
Stratos
Forerunner 45
Gen 5 Smartwatch Carlyle
VivoActive 4
 FitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowGarminForerunner 45Remove Buy NowFossilGen 5 Smartwatch CarlyleRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$199$199$295$349
Release20162018201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7 days1 day8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 300208 x 208328 x 328260 x 260
Sizen/a1.34 inches1.04 inches1.3 inches1.3ionches
Touchn/a
TypeLEDOLEDLCDAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryBuilt-inWear OSWear OS
Apps
Music

All Wearables