It’s more to do with me not keeping the wrist strap actually the tightest it would go, because it’s annoyingly squeezing then.

Sometimes, on some angles, there will be a bit of space between the sensor and my skin which would explain the bad reading.

Pretty sure the tech is more or less the same tech as in the basic rubber thing that gets put on your finger at hospital. Except those alway used red imo, not green. But idk. I don’t really need the SPO2 feature so I don’t mind.

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