Fitbit Alta vs. Casio WSD-F20A vs. Fitbit Versa vs. Garmin Forerunner 45 vs. Apple Series 6

 
Alta
WSD-F20A
Versa
Forerunner 45
Series 6
 FitbitAltaRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitVersaRemove Buy NowGarminForerunner 45Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$399$199.99$199$399
Release20162018201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day4 days7 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320300 x300208 x 208384 x 480
Sizen/a1.32 inches1.34 inches1.04 inches40mm
Touchn/a
TypeOLEDLCDOLEDLCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWear OSBuilt-inWatchOS 5
Apps
Music

All Wearables