How to Turn Off Blood Oxygen Monitoring on Apple Watch – Guide

Apple has unveiled a new feature for measuring blood oxygen levels with the Apple Watch Series 6, which uses the LEDs on the back of the Apple Watch to measure the amount of oxygen in the blood. A low blood oxygen level can signal a major health problem that must be addressed immediately. Taking a blood oxygen reading is simple, but there are a number of automated measurement settings you should be aware of, as well as some important suggestions for getting an accurate result, which can be found at tutorial below.

How Blood Oxygen Readings Work on Apple Watch

The Apple Watch Series 6 is equipped with green, red and infrared LEDs that illuminate blood vessels in the wrist, with photodiodes measuring the amount of light reflected back. Apple’s algorithms use this information to calculate blood color, which is an indication of the amount of oxygen in the blood. Bright red blood is well oxygenated, while darker blood has less oxygen. Apple Watch Series 6 can measure blood oxygen levels between 70 and 100%. Most healthy people have blood oxygen levels that range from 95 to 100 percent, although those with COPD and other lung conditions may have a lower average percentage. Apple does not expect the Series 6 blood oxygen function to be intended for medical use and therefore the Apple Watch will not send a notification if a lower than normal blood oxygen level is detected.

hardware requirements

Using blood oxygen monitoring feature requires an Apple Watch Series 6 running the latest version of watchOS along with an iPhone 6s or later running the latest version of iOS. The Blood Oxygen app is available in almost every country in the world, but if you’re not seeing it, it might not be in your country. Apple has a list here. Please note that the Blood Oxygen app is not available to users under the age of 18 and is not activated when an Apple Watch is paired with an ‌iPhone‌ using Family Setup.

Enabling Blood Oxygen Measurements

when you set up the Series 6 Apple Watch, you will be asked during the setup process if you want to enable blood oxygen measurements. If you tap “activate” when prompted, the feature will be activated automatically and can be used through the Blood Oxygen app.

How to Take a Blood Oxygen Measurement on Apple Watch

You can view blood oxygen measurements taken over days, weeks, months and years in the Health app on your ‌iPhone‌. Just search for “Blood Oxygen”.

Automatic blood oxygen readings

In addition to on-demand readings, Apple Watch Series 6 automatically takes blood oxygen readings throughout the day. Automatic blood oxygen measurements are enabled as long as blood oxygen measurements are turned on and on, which is the default setting on the new Apple Watch. Automatic blood oxygen readings are taken infrequently during the day, so you may only see these measurements a few times throughout the day, a deviation from the frequency of heart rate measurements. Blood oxygen readings are not taken as often simply because the pulse needs to be held still and in a specific orientation for a measurement.

Enabling automatic blood oxygen readings in theater mode

The Apple Watch has a Theater Mode that keeps the Apple Watch screen dim to keep it from being a nuisance in dark places like movie theaters, and there’s a blood oxygen setting that can toggle readings on or off during Theater Mode. Apple says blood oxygen readings require the use of a bright red light, which has the potential to be distracting in a dark room. Here it is how to enable or disable readings in Theater Mode.

Enabling automatic blood oxygen readings during sleep

As with Theater Mode, Apple has the option to turn off blood oxygen readings when the Apple Watch is in sleep mode, because bright light can be distracting in the dark. Here it is how to enable or disable readings for Sleep Mode. Here’s the easiest way to access your data. From here you can view your average blood oxygen measurements by day, week, month or year by tapping the graph to see specific information about each reading in the day view or ranges for the other view options. Tapping “Show more blood oxygen data” provides the latest reading, range over time, daily average, and readings in a high elevation environment or during sleep, if applicable. If you scroll to the bottom of the app, there is a “Show all data” option that you can tap to see all blood oxygen measurements that have been taken with specific information about date, barometric pressure, and more.

Turn off blood oxygen monitoring

Don’t want to use blood oxygen monitoring? It can be turned off in the Settings app. If you want to re-enable the blood oxygen readings at a later time, simply enable the toggle again. It is enabled by default when you set up the Apple Watch, so the only reason you might need to turn it on is if you’ve turned it off before.

Troubleshooting blood oxygen

The sensors that measure the blood oxygen level on the Apple Watch are highly sensitive and will fail to read even if there is a slight movement. If you frequently get a “Measurement Failed” warning, be sure to follow these steps.

Final note

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