Garmin Forerunner 225 vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Vivosmart 3 vs. Fitbit Sense 2

 
Forerunner 225
Flex 2
645 Music
Vivosmart 3
Sense 2
 GarminForerunner 225Remove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivosmart 3Remove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$300$100$450$139.99$300
Release20152016201820172022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks5 days7 days5 days6 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution180 x 180n/a240 x 24064 x 128336x336
Size1 inchn/a1.2 inchesNA1.59 inches
Touchn/a
Typen/aLEDMIPOLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

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

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/a
Appsn/a
Musicn/a

All Wearables