Blood Oxygen

Health & Fitness

Only for Watch

Free

Apple Watch

With the Blood Oxygen app on Apple Watch Series 6 or later*, you can measure the blood oxygen saturation levels directly from your wrist. Using the blood oxygen sensor on Apple Watch, the Blood Oxygen app can help you assess oxygen levels in your blood and get insights into how well your body is absorbing oxygen and overall wellness. Features • Allows you to take on-demand blood oxygen measurements. • Performs periodic background measurements throughout the day and overnight if you wear your Apple Watch to sleep. • Stores all measurements in the Health app on iPhone, with the ability to filter and view measurements taken while asleep or in a high-elevation environment. *For models of Apple Watch purchased in the United States on or after January 18, 2024 with part numbers ending in LW/A, the Blood Oxygen data analysis is performed on iPhone, and results can be viewed in the Health app.

  • 3.9
    out of 5
    128 Ratings

The developer, Apple, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Health & Fitness
    • Location
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

  • Seller
    • Apple Inc.
  • Category
    • Health & Fitness
  • Compatibility
    Requires iOS 13.0 or later.
    • iPhone
      Requires iOS 13.0 or later.
    • iPod touch
      Requires iOS 13.0 or later.
    • Apple Watch
      Requires watchOS 7.0 or later.
  • Languages
    • English
  • Age Rating
    4+
  • Copyright
    • Copyright © 2025 Apple Inc. All rights reserved.