Fitbit Alta vs. Apple Watch Series 2 vs. Casio WSD-F20A vs. Garmin Chronos vs. Apple Series 6

 
Alta
Watch Series 2
WSD-F20A
Chronos
Series 6
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowCasioWSD-F20ARemove Buy NowGarminChronosRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$269$399$1500$399
Release20162016201820182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours1 day8 daysNot 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 312320 x 320218 x 218384 x 480
Sizen/a1.5 inches or 1.65 inches1.32 inches1.2 inches40mm
Touchn/a
TypeOLEDAMOLEDLCDMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5ATM5 ATM10 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSWear OSWear OSWatchOS 5
Apps
Music

All Wearables