Apple Watch Series 3 vs. Garmin Forerunner 225 vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Forerunner 235

 
Watch Series 3
Forerunner 225
Flex 2
645 Music
Forerunner 235
 AppleWatch Series 3Remove Buy NowGarminForerunner 225Remove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 235Remove Buy Now

Basic Info

Suggested Price$329$300$100$450$299.99
Release20172015201620182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours10 hours to 4 weeks5 days7 days9 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312180 x 180n/a240 x 240215 x 180
Size1.5 inches or 1.65 inches1 inchn/a1.2 inches1.23 inches
Touchn/a
TypeAMOLEDn/aLEDMIPMIP

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 SystemWatchOS 4n/an/a
Appsn/a
Musicn/a

All Wearables