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

 
Forerunner 225
Charge
Flex
Vivosmart 4
GTS
 GarminForerunner 225Remove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$300$130$100$130$150
Release20152014201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks7-10 days5 days7 days14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180NANA48 x 128348 x 442
Size1 inchNANA0.74 inches1.65 inches
TouchNANA
Typen/aOLEDLEDOLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

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

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aNANAWear OS
Appsn/a
Musicn/a

All Wearables