Garmin 645 Music vs. Garmin Forerunner 235 vs. Diesel On Full Guard 2.5 vs. HTC re Grip vs. Apple SE

 
645 Music
Forerunner 235
On Full Guard 2.5
re Grip
SE
 Garmin645 MusicRemove Buy NowGarminForerunner 235Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowHTCre GripRemove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$450$299.99$325$199$279
Release20182017201820202020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days9 days4 days5 hours to 2.5 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240215 x 180454x454160 x 32384 x 480
Size1.2 inches1.23 inches1.39 inches1.8 inches40mm
Touch
TypeMIPMIPPMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATM5 ATM3 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNAWatchOS 5
Apps
Music

All Wearables