Fitbit Charge 2 vs. Apple Watch Series 2 vs. Fitbit Ionic vs. Casio WSD-F20A vs. Apple Series 6

 
Charge 2
Watch Series 2
Ionic
WSD-F20A
Series 6
 FitbitCharge 2Remove Buy NowAppleWatch Series 2Remove Buy NowFitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$150$269$299$399$399
Release20162016201720182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours4+ days1 dayNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312348x250320 x 320384 x 480
Sizen/a1.5 inches or 1.65 inches1.421.32 inches40mm
Touchn/a
TypeOLEDAMOLEDOLEDLCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5ATM50m5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSFitbit OSWear OSWatchOS 5
Apps
Music

All Wearables