Skip to content
AppleMagazine
 
Everything Apple, All in One Place.
  • Mobile & Wearable
  • Computers
  • Productivity
  • Entertainment
  • Innovation
  • Tech Industry
  • More
    • Search
    • Menu
    AppleMagazine
     
    Everything Apple, All in One Place.
    • Search

    Watch Oxygen Accuracy: How Apple Watch Measures Blood Oxygen and What Affects Reliability

    Watch-Oxygen-Accuracy-1

    Full size is 1920 × 1280 pixelsMarch 9, 2026March 9, 2026

    A smartwatch displaying instructions for measuring blood oxygen, showing an illustration of a wrist with a watch and text advising to wear the watch snugly but comfortably.

    Image navigation

    Watch-Oxygen-Accuracy-3

    A smartwatch displaying instructions for measuring blood oxygen, showing an illustration of a wrist with a watch and text advising to wear the watch snugly but comfortably.

    AppleMagazine logo

    AppleMagazine is an independent publication and has not been authorized, sponsored, or otherwise approved by Apple Inc.

    We cover everything Apple, every day of the week. The latest on iOS, macOS, Apple Watch, AirPods, and the wider technology industry. Check back soon for more.
    X Icon Instagram Icon Newsstand Icon Facebook Icon
    • Business Partnership Program
    • Contact
    • Terms & Conditions
    • Privacy Policy
    © Copyright 2026 by AppleMagazine. All Rights Reserved.

    We are using cookies to give you the best experience on our website.

    You can find out more about which cookies we are using or switch them off in .

    AppleMagazine
    Powered by  GDPR Cookie Compliance
    Privacy Overview

    This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.

    Strictly Necessary Cookies

    Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings.