Fitbit Flex 2 vs. Garmin Vivofit 3 vs. Garmin Fenix 5s vs. Diesel On Full Guard 2.5 vs. Apple Watch Ultra

 
Flex 2
Vivofit 3
Fenix 5s
On Full Guard 2.5
Watch Ultra
 FitbitFlex 2Remove Buy NowGarminVivofit 3Remove Buy NowGarminFenix 5sRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$100$100$599.99$325$799
Release20162016201720182022

Activity & Fitness

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

Battery

Duration5 days1 yearUp to 9 days4 days36 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a64 x 64218x 218454x454502x410 pixels
Sizen/a0.55 inches1.1 inches1.39 inches1.92 inches
Touchn/a
TypeLEDn/ana

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM10ATM3 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSWatchOS 9
Apps
Music

All Wearables