Garmin 645 Music vs. Garmin Forerunner 235 vs. Fitbit Charge HR vs. Apple SE vs. Apple Watch Ultra

 
645 Music
Forerunner 235
Charge HR
SE
Watch Ultra
 Garmin645 MusicRemove Buy NowGarminForerunner 235Remove Buy NowFitbitCharge HRRemove Buy NowAppleSERemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$450$299.99$150$279$799
Release20182017201520202022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days9 days5 days18 hours36 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240215 x 180NA384 x 480502x410 pixels
Size1.2 inches1.23 inchesNA40mm1.92 inches
TouchNA
TypeMIPMIPOLEDMicroLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATM5 ATM1 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWatchOS 5WatchOS 9
Apps
Music

All Wearables