Fitbit Ionic vs. Asus ZenWatch vs. Garmin 645 Music vs. Garmin Forerunner 45 vs. Apple Watch Ultra

 
Ionic
ZenWatch
645 Music
Forerunner 45
Watch Ultra
 FitbitIonicRemove Buy NowAsusZenWatchRemove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 45Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$299$150$450$199$799
Release20172014201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ daysNA7 days7 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250320 x 320240 x 240208 x 208502x410 pixels
Size1.421.63 inches1.2 inches1.04 inches1.92 inches
Touch
TypeOLEDAMOLEDMIPLCD

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50mIP555 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemFitbit OSAndroid WearBuilt-inWatchOS 9
Apps
Music

All Wearables