Fitbit Flex 2 vs. Casio WSD-F20A vs. Garmin Vivoactive 3 vs. Diesel On Full Guard 2.5 vs. Amazfit T-Rex

 
Flex 2
WSD-F20A
Vivoactive 3
On Full Guard 2.5
T-Rex
 FitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowGarminVivoactive 3Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$399$299$325$140
Release20162018201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day7 days4 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 320240 x 240454x454360 x 360
Sizen/a1.32 inches1.2 inches1.39 inches1.3 inches
Touchn/a
TypeLEDLCDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWear OSBuild-in
Apps
Music

All Wearables