There are a couple of posts suggesting the nighttime readings of the spo2 are not always accurate. I did three readings this morning after I woke up and all indicated 85%. I did one ten mins ago and it read 88% then 95% and just now 99% (2.5 hours after waking up).
I am an asthmatic and did feel slightly short of breath this morning (I ran 5k yesterday evening).
This is just my second day of having the 245 but just wondering how accurate it is in the daytime. How does it compare to a hospital grade spo2 reader for example? (+/- how much?)
(as an aside I do find the fact you have to be very still for a minute really calming!)