Garmin Forerunner 225 vs. Fitbit Flex 2 vs. Fitbit Charge HR vs. Garmin Vivosmart 4 vs. Amazfit GTS

 
Forerunner 225
Flex 2
Charge HR
Vivosmart 4
GTS
 GarminForerunner 225Remove Buy NowFitbitFlex 2Remove Buy NowFitbitCharge HRRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$300$100$150$130$150
Release20152016201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks5 days5 days7 days14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution180 x 180n/aNA48 x 128348 x 442
Size1 inchn/aNA0.74 inches1.65 inches
Touchn/aNA
Typen/aLEDOLEDOLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aNAWear OS
Appsn/a
Musicn/a

All Wearables