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https://help.fitbit.com/articles/en_US/Help_article/2459.htm
Sorry, there was a problem. Please try again later.Sort of. Only if you download and choose a specific watch face that displays spo2. It's also not automatic. When you initially apply the spo2 watch face you need to where it overnight to get your first reading. I had hoped it would be automatic and I could check it at any time. But it seems to only update overnight
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