Garmin 645 Music vs. Fitbit Alta HR vs. Jaybird Reign vs. Fitbit Inspire HR vs. Apple Watch 7

 
645 Music
Alta HR
Reign
Inspire HR
Watch 7
 Garmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowJaybirdReignRemove Buy NowFitbitInspire HRRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$450$150$150$99$429
Release20182017201520192021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days7 days5 days5 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240128 x 36NA139 x 60396 x 484
Size1.2 inches1.4 inchesNA1.4 inches1.9 inches
TouchNA
TypeMIPOLEDLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMNA5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemNAFitbit OSWatchOS 8
Apps
Music

All Wearables