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Blood Oxygen

Blood Oxygen

by Apple Inc.

128 ratings
20 reviews
💪 Health & Fitness
Free

Details

  • Released
  • Updated

Developer

Apple Inc.
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Blood Oxygen screenshot #1 for Apple Watch
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About

Measure your blood oxygen saturation levels directly from your wrist. This app helps you assess oxygen levels, understand how well your body is absorbing oxygen, and gain insights into your overall wellness. It records measurements for later review.

✓On-demand blood oxygen measurements
✓Periodic background measurements
✓Overnight measurements
✓Stores measurements in Health app
✓Filter measurements by sleep or elevation
Show original description

What's New in Blood Oxygen

1.7

December 12, 2025

Bug Fixes and Feature Enhancements

User reviews

Most RecentHighest RatedLowest Rated

Why this app doesn’t work on Apple Watch serie 4

Why
QuiquecardonaQuiquecardona

Can’t get on my watch

This is frustrating. How do I get this on my watch? I have followed all the instructions.
MangoMplsMangoMpls

Australia ability to use?

Trying to download from Australia
iPhone app says must download via Apple Watch
Go to Apple Watch and click into the App Store to download and the App Store says must use iPhone
So neither will download
mightygemmightygem

18+

Anyone with a watch should be able to access HEALTH features. Blood oxygen levels are not inappropriate for anyone to see.
LUPLilyLUPLily

Cannot Download

Can I download on my iPhone XR or my Apple Watch
Rocket.44Rocket.44
See 15 more reviews

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FAQ

What does the Blood Oxygen app do?

The Blood Oxygen app allows you to measure your blood oxygen saturation levels directly from your Apple Watch Series 6 or later. It helps you assess how well your body is absorbing oxygen and provides insights into your overall wellness.

How can I take a blood oxygen measurement?

You can take on-demand blood oxygen measurements directly from your wrist using the app. The app also performs periodic background measurements throughout the day and overnight if you wear your Apple Watch to sleep.

Where are my blood oxygen measurements stored?

All your blood oxygen measurements are stored in the Health app on your iPhone. You can filter and view measurements taken while asleep or in a high-elevation environment.

Is this app compatible with all Apple Watches?

This app is designed for Apple Watch Series 6 or later. For models purchased in the United States on or after January 18, 2024, with specific part numbers, the data analysis is performed on iPhone and results are viewed in the Health app.