Amazfit Cor vs. Casio WSD-F20A vs. Fitbit Flex vs. Apple Watch Series 4 vs. Garmin Forerunner 45

 
Cor
WSD-F20A
Flex
Watch Series 4
Forerunner 45
 AmazfitCorRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$79.99$399$100$329$199
Release20182018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days1 day5 daysNot Yet7 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution80 x 160320 x 320NA384 x 480208 x 208
Size1.23 inches1.32 inchesNA1.78 inches1.04 inches
TouchNA
TypeIPS LCDLCDLEDMicroLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNAWatch OS 5Built-in
Apps
Music

All Wearables