Garmin 645 Music vs. Diesel On Full Guard 2.5 vs. Fitbit Versa 2 vs. Garmin Forerunner 45 vs. Apple Watch Ultra

 
645 Music
On Full Guard 2.5
Versa 2
Forerunner 45
Watch Ultra
 Garmin645 MusicRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowFitbitVersa 2Remove Buy NowGarminForerunner 45Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$450$325$199$199$799
Release20182018201920192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days4 days5 days7 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240454x454300 x 300208 x 208502x410 pixels
Size1.2 inches1.39 inches1.34 inches1.04 inches1.92 inches
Touch
TypeMIPAMOLEDLCD

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM5 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSBuild-inBuilt-inWatchOS 9
Apps
Music

All Wearables