Casio WSD-F10 vs. Fitbit Flex 2 vs. Fitbit One vs. Garmin 645 Music vs. Apple Watch Ultra

 
WSD-F10
Flex 2
One
645 Music
Watch Ultra
 CasioWSD-F10Remove Buy NowFitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowGarmin645 MusicRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$500$100$100$450$799
Release20162016201220182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygenn/a
Sleepn/a
Steps
Swimn/a

Battery

Durationn/a5 days10-14 days7 days36 hrs
Rechargeable

Compatibility

Android
iOSn/a
Windows Phonen/an/an/a
Macn/a
Windowsn/a

Connectivity

Bluetoothn/a
Cellularn/a
GPS
NFCn/a
Wi-Fin/a

Display

Colorn/a
Resolutionn/an/an/a240 x 240502x410 pixels
Sizen/an/an/a1.2 inches1.92 inches
Touchn/an/a
TypeLCDLEDOLEDMIP

Functions

Audio Speakern/a
ClockLTPO OLED Retina
Phonen/a
Vibration
Voicen/a

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMSplast Resistant5 ATM10 ATM (100 Meters)

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemAndroid Wearn/an/aWatchOS 9
Appsn/a
Musicn/a

All Wearables