Garmin 645 Music vs. Fitbit Alta HR vs. Apple Watch Series 5 vs. Garmin Forerunner 45 vs. Fitbit Inspire HR

 
645 Music
Alta HR
Watch Series 5
Forerunner 45
Inspire HR
 Garmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowAppleWatch Series 5Remove Buy NowGarminForerunner 45Remove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$450$150$329$199$99
Release20182017201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days7 daysNot Yet7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240128 x 36384 x 480208 x 208139 x 60
Size1.2 inches1.4 inches1.78 Inches1.04 inches1.4 inches
Touch
TypeMIPOLEDMicroLEDLCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMNot Yet5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 5Built-inFitbit OS
Apps
Music

All Wearables