Garmin Forerunner 225 vs. ASUS ZenWatch 3 vs. Fitbit Ionic vs. Garmin 645 Music vs. Apple Watch Ultra

 
Forerunner 225
ZenWatch 3
Ionic
645 Music
Watch Ultra
 GarminForerunner 225Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$300$229$299$450$799
Release20152017201720182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks48 hours4+ days7 days36 hrs
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180400 x 400348x250240 x 240502x410 pixels
Size1 inch1.39 inches1.421.2 inches1.92 inches
Touch
Typen/aAMOLEDOLEDMIP

Functions

Audio Speaker22
ClockLTPO OLED Retina
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM10 ATM (100 Meters)

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aAndroid Wear 2Fitbit OSWatchOS 9
Appsn/a
Musicn/a

All Wearables