Garmin Fenix 3 vs. Fitbit Ionic vs. Amazfit Stratos vs. Diesel On Full Guard 2.5 vs. Apple Watch Ultra

 
Fenix 3
Ionic
Stratos
On Full Guard 2.5
Watch Ultra
 GarminFenix 3Remove Buy NowFitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$500$299$199$325$799
Release20152017201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration50 hours to 6 weeks4+ days5 days4 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218348x250320 x 300454x454502x410 pixels
Size1.2 inches1.421.34 inches1.39 inches1.92 inches
Touch
TypeChroma LEDOLEDOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM50m5 ATM3 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSProprietaryWear OSWatchOS 9
Apps
Music

All Wearables