Fitbit Flex 2 vs. Garmin Forerunner 235 vs. Diesel On Full Guard 2.5 vs. Garmin Forerunner 45 vs. Apple SE

 
Flex 2
Forerunner 235
On Full Guard 2.5
Forerunner 45
SE
 FitbitFlex 2Remove Buy NowGarminForerunner 235Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowGarminForerunner 45Remove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$100$299.99$325$199$279
Release20162017201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days9 days4 days7 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a215 x 180454x454208 x 208384 x 480
Sizen/a1.23 inches1.39 inches1.04 inches40mm
Touchn/a
TypeLEDMIPLCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSBuilt-inWatchOS 5
Apps
Music

All Wearables