Apple yesterday announced the Apple Watch Series 6 with a new sensor that enables blood monitoring features in the blood, but Apple did not specify which countries the feature would be available in.
Some health features, such as ECG and irregular heart rate messages, have been restricted in availability due to legal requirements, but it appears that these requirements do not apply to the blood oxygen monitoring function.
According to the Apple Watch Feature availability page, blood oxygen monitoring is available in more than 100 countries, suggesting that there are no health-related regulatory issues that Apple needs to address. However, a support document on the use of blood oxygen monitoring mentions that it is only available in “certain countries and regions”, so there may be some omissions.
Those interested in purchasing an Apple Watch Series 6 specifically for the feature should double-check the availability page to ensure that blood oxygen monitoring is supported in their country.
Measurement of oxygen in the blood with the Apple Watch Series 6 is done through the new Blood Oxygen app. It uses a series of red and green LEDs and infrared light to measure the amount of light reflected by the skin, with advanced algorithms that use this data to calculate the color of the blood to derive the blood oxygen level. Light red blood has more oxygen, while darker red blood has less.
Apple Watch Series 6 can be purchased at Apple’s online store with orders arriving from Friday.