Is there any way to properly calibrate the watch's sensors? I've had my VivoActive 4 for just a few weeks, and the Pulse Ox readings have been consistently low. I have a home fingertip monitor that always reads higher, and this morning I was in my physician's office and they used their medical-grade monitor while I simultaneously checked on my watch. Their reading was 99. The watch reading was 91. And right now, sitting here taking a quick break from tying this... My watch reading right now just came in at 87, which would be pretty bad if it were true. My fingertip reading from my home device came in at 97. These are really big differences - enough to say that the watch's reading is basically useless, and it calls into question the reliability of other readings as well, at least in my mind. The sensors do look clean to me. The pulse sensor doesn't perfectly match my fingertip monitor, but it's close enough.
