Garmin Forerunner 225 vs. Amazfit Arc vs. Garmin 645 Music vs. Fitbit Flex vs. Fitbit Inspire HR

 
Forerunner 225
Arc
645 Music
Flex
Inspire HR
 GarminForerunner 225Remove Buy NowAmazfitArcRemove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$300$69.99$450$100$99
Release20152016201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks20 days7 days5 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 18072 x40240 x 240NA139 x 60
Size1 inch0.42 inches1.2 inchesNA1.4 inches
TouchNA
Typen/aOLEDMIPLEDOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP675 ATM1 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aNAFitbit OS
Appsn/a
Musicn/a

All Wearables