Garmin Forerunner 225 vs. Polar A360 vs. Fitbit Ionic vs. Garmin 645 Music vs. Apple Watch Ultra

 
Forerunner 225
A360
Ionic
645 Music
Watch Ultra
 GarminForerunner 225Remove Buy NowPolarA360Remove Buy NowFitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$300$200$299$450$799
Release20152015201720182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks12 days4+ days7 days36 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180160 x 80348x250240 x 240502x410 pixels
Size1 inch1.18 inches1.421.2 inches1.92 inches
Touch
Typen/an/aOLEDMIP

Functions

Audio Speaker22
ClockLTPO OLED Retina
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWR3050m5 ATM10 ATM (100 Meters)

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aFitbit OSWatchOS 9
Appsn/a
Musicn/a

All Wearables