Fitbit Alta vs. Casio WSD-F20A vs. Fitbit Flex vs. Fossil Gen 5 Smartwatch Carlyle vs. Apple Series 6

 
Alta
WSD-F20A
Flex
Gen 5 Smartwatch Carlyle
Series 6
 FitbitAltaRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowFossilGen 5 Smartwatch CarlyleRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$399$100$295$399
Release20162018201320192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day5 days1 dayNot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320NA328 x 328384 x 480
Sizen/a1.32 inchesNA1.3 inches40mm
Touchn/aNA
TypeOLEDLCDLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5 ATM1 ATM3 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWear OSNAWear OSWatchOS 5
Apps
Music

All Wearables