O2 sensor

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Level 1

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O2 sensor

Is there a way to calibrate my Blood Oxygen sensor on a Series 7 Watch? It produces readings wildly out of range from my finger pulse oximeter. I have a lung condition that results in my baseline of between 88-92% under normal activity. I'm getting readings of 94-97% from my watch. More concerning is that when my oxygen drops to below 85 (a cause for concern) my watch says its unable to get a reading or comes up with 92-94%. Before referring me to the standard page of how to use this app, suffice to say this isn't my first rodeo. I simply want to know if there is a way to calibrate the app? yes or no. The ECG is bang on. The O2 meter is not.

Posted on Mar 6, 2022 8:30 AM

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Answer 1

Drew_7

Community Specialist

Mar 7, 2022 9:11 AM in response to grangequest

grangequest,

There aren't any additional steps to take other than those listed in the resources above. If you're looking for more details from readings in the Health app, or additional calibration options, we recommend leaving feedback here: Product Feedback

Regards.

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Answer 2

bailier

Community Specialist

Mar 7, 2022 8:51 AM in response to grangequest

Hello grangequest,

To get the best results within the Blood Oxygen app, follow these steps:

How to get the best results

1.) Rest your arms on a table or in your lap while you take a measurement. Keep your wrist and palm down and flat, and hold as still as you can.

2.) Make sure that your Apple Watch isn’t loose on your wrist. The band should be snug but comfortable, and the back of your Apple Watch needs to be touching your wrist.

3.) Make sure that the back of your Apple Watch is flush with the top of your wrist. If your wrist bones interfere with this, move your watch 1 to 2 inches up your arm away from your wrist bone.

For more information, including additional factors that may affect your readings, check out this article: How to use the Blood Oxygen app on Apple Watch Series 6 or Series 7 - Apple Support

Should you continue to have issues, contact Apple Support.

Have a great day!

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Answer 3

grangequest Author

Level 1

0 points

Mar 7, 2022 9:02 AM in response to grangequest

Thank you for your cut and paste reply. I’d already read that information prior to the post. My question was simple: can the oximeter be calibrated? Readings are wildly out 5-7% or no readings at all. I take it the answer is no. This feature is of no value for someone who relies on reasonably accurate readings. Oh. Well.

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O2 sensor

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