Garmin Fenix 5X vs. Fitbit Flex vs. Garmin Vivosmart 3 vs. Diesel On Full Guard 2.5 vs. Apple Watch Ultra

 
Fenix 5X
Flex
Vivosmart 3
On Full Guard 2.5
Watch Ultra
 GarminFenix 5XRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 3Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$699$100$139.99$325$799
Release20172013201720182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

DurationUp to 12 days5 days5 days4 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x240NA64 x 128454x454502x410 pixels
Size1.2 inchesNANA1.39 inches1.92 inches
TouchNA
TypeNALEDOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM1 ATM5 ATM3 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWear OSWatchOS 9
Apps
Music

All Wearables