Apple Watch Series 3 vs. Fitbit Alta vs. Casio WSD-F20A vs. Michael Kors Access Sofie vs. Fitbit Flex

 
Watch Series 3
Alta
WSD-F20A
Access Sofie
Flex
 AppleWatch Series 3Remove Buy NowFitbitAltaRemove Buy NowCasioWSD-F20ARemove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$329$130$399$395$100
Release20172016201820172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days1 day1 day5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a320 x 320390 x 390 1.19 inchesNA
Size1.5 inches or 1.65 inchesn/a1.32 inchesNA
Touchn/aAMOLDEDNA
TypeAMOLEDOLEDLCDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5 ATM1 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemWatchOS 4n/aWear OSAndroid Wear 2.0NA
Apps
Music

All Wearables