It could potentially also offer a window into training recovery, especially as there’s an increased demand on oxygen use during exercise. It’s something that Garmin does with the pulse ox sensor it includes in many of its watches. One of the ways it could be utilised is in the altitude scenario we mentioned, keeping tabs on your body’s levels when oxygen concentration in the atmosphere is lower to see how it’s responding to the conditions. So what does Apple mean by ‘general fitness and wellness purposes’? Well, Apple doesn’t go into any detail about that really, so it’s very much open to interpretation. So for those hoping they can use it in a similar way to a dedicated pulse oximeter device to offer more serious health insights that could allude to some issues tied to low blood oxygen levels, that’s not the case with the Apple Watch. Apple says the data and measurements generated by its blood oxygen sensor are only designed for general fitness and wellness purposes. Right now, Apple will let you take on the spot measurements and monitor blood oxygen levels during the day and while asleep. How can you use blood oxygen data on the Apple Watch? ![]() It’s rare for someone to experience blood oxygen levels that are too high and would be usually associated with someone who requires assisted oxygen support. ![]() ![]() You may then experience symptoms like headaches, dizziness, confusion and shortness of breath. Conditions like asthma, infections like pneumonia and respiratory viruses and illnesses like Covid-19 can impact on the body’s ability to get oxygen where it needs to be causing levels to fall.īeing in high altitude environments where oxygen in the atmosphere becomes lower than normal is also another scenario where you can experience blood oxygen levels to drop. There’s a variety of causes for blood oxygen levels in the body to drop. (Image credit: Michael Sawh) What can cause blood oxygen levels to be low?
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