Estimated oxygen variation is back, and all that for previous nights is viewable again. It seems SpO₂ actual readings will be activated soon. : r/PixelWatch
A very jagged oxygen variation : r/fitbit
Fitbit's Sleep Apnea Detection: An In-Depth Review of Charge 3 — Eightify
Fitbit Estimated Oxygen Variation: We explain SpO2, sleep apnea and blood oxygen - Wareable
Flo | FTT (en) on X: "The latest update to the #Fitbit App introduced more concise #charts for steps, distance and calories burned. This doesn't account for the chart of estimated #blood #