Fitbit Flex 2 vs. Basis Peak vs. Casio WSD-F20A vs. Apple Watch Series 4 vs. Amazfit GTS

 
Flex 2
Peak
WSD-F20A
Watch Series 4
GTS
 FitbitFlex 2Remove Buy NowBasisPeakRemove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch Series 4Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$200$399$329$150
Release20162014201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4 days1 dayNot Yet14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a168 x 144320 x 320384 x 480348 x 442
Sizen/a1.25 inches1.32 inches1.78 inches1.65 inches
Touchn/a
TypeLEDLCDLCDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWear OSWatch OS 5Wear OS
Apps
Music

All Wearables