Fitbit Zip vs. Apple Watch Series 2 vs. Fitbit Ionic vs. Casio WSD-F20A vs. Apple Watch 7

 
Zip
Watch Series 2
Ionic
WSD-F20A
Watch 7
 FitbitZipRemove Buy NowAppleWatch Series 2Remove Buy NowFitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$60$269$299$399$429
Release20122016201720182021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration6 months18 hours4+ days1 day18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312348x250320 x 320396 x 484
Sizen/a1.5 inches or 1.65 inches1.421.32 inches1.9 inches
Touch
Typen/aAMOLEDOLEDLCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplash Resistant5ATM50m5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSFitbit OSWear OSWatchOS 8
Apps
Music

All Wearables