Garmin 645 Music vs. Diesel On Full Guard 2.5 vs. Garmin Forerunner 45 vs. Garmin VivoActive 4 vs. Fitbit Sense 2

 
645 Music
On Full Guard 2.5
Forerunner 45
VivoActive 4
Sense 2
 Garmin645 MusicRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowGarminForerunner 45Remove Buy NowGarminVivoActive 4Remove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$450$325$199$349$300
Release20182018201920192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days4 days7 days8 days6 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240454x454208 x 208260 x 260336x336
Size1.2 inches1.39 inches1.04 inches1.3ionches1.59 inches
Touch
TypeMIPLCDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSBuilt-inWear OS
Apps
Music

All Wearables