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by Steve44
654 days ago
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I've a FitBit Sense 2 and as I understand it that measures variations in SpO2. I'm not convinced how accurate nor how quickly it responds, it derives an estimate rather than directly measuring. I think it's also sensitive to any movements of the watch on your wrist. I also have had a finger pulse oximeter which logs and exports to an app via USB. If I sleep with that on it seems to be very reliable at recording the levels, the data certainly looks good and feels much more reliable than the Sense. |
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