I have compared to a high-end Nonin Pulse Ox and the 945 is at typically 4-5 points lower. I wish there was a way to calibrate this sensor.
My FR945 reads about 3 pts lower than my fingertip meter and my Fenix 5x plus. I have compared the F5x+ reading with a reading in the doctor's office several times and they were within 1 point each time…
My sleeping pulse ox seems to dip into high 80's/low 90's at certain times during the night...i can almost certainly confirm through my wife that i do not have sleep apnea. i think the dips happen…
