Fitbit Charge 2 vs. Misfit Flash Link vs. Casio WSD-F20A vs. Apple Watch Series 4 vs. Amazfit T-Rex

 
Charge 2
Flash Link
WSD-F20A
Watch Series 4
T-Rex
 FitbitCharge 2Remove Buy NowMisfitFlash LinkRemove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch Series 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$20$399$329$140
Release20162015201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days6 months1 dayNot Yet20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 320384 x 480360 x 360
Sizen/an/a1.32 inches1.78 inches1.3 inches
Touchn/an/a
TypeOLEDn/aLCDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a3 ATM5 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSWatch OS 5Build-in
Apps
Music

All Wearables