Garmin Forerunner 225 vs. Fitbit Ionic vs. Asus ZenWatch vs. Fitbit Flex vs. Apple Watch 7

 
Forerunner 225
Ionic
ZenWatch
Flex
Watch 7
 GarminForerunner 225Remove Buy NowFitbitIonicRemove Buy NowAsusZenWatchRemove Buy NowFitbitFlexRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$300$299$150$100$429
Release20152017201420132021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks4+ daysNA5 days18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180348x250320 x 320NA396 x 484
Size1 inch1.421.63 inchesNA1.9 inches
TouchNA
Typen/aOLEDAMOLEDLEDMicroLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50mIP551 ATMwater resistant but not waterproof

Notifications

Phonen/a
Emailsn/aNA
Textsn/aNA

Software

Operating Systemn/aFitbit OSAndroid WearNAWatchOS 8
Appsn/a
Musicn/a

All Wearables