Fitbit Ionic vs. Casio WSD-F20A vs. Fitbit Flex vs. Apple Watch Series 4 vs. Swatch Touch Zero One

 
Ionic
WSD-F20A
Flex
Watch Series 4
Touch Zero One
 FitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowSwatchTouch Zero OneRemove Buy Now

Basic Info

Suggested Price$299$399$100$329$220
Release20172018201320182015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleepn/a
Steps
Swimn/a

Battery

Duration4+ days1 day5 daysNot Yetn/a
Rechargeable

Compatibility

Androidn/a
iOSn/a
Windows PhoneNAn/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250320 x 320NA384 x 480n/a
Size1.421.32 inchesNA1.78 inchesn/a
TouchNA
TypeOLEDLCDLEDMicroLEDn/a

Functions

Audio Speakern/a
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimetern/a
Ultraviolet Sensor
Water Resistance50m5 ATM1 ATMNot Yet

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemFitbit OSWear OSNAWatch OS 5n/a
Apps
Musicn/a

All Wearables