Some Pixel Watch owners report SpO2 and skin temperature tracking stopped after a Fitbit update. Misryoum reports Google and Fitbit are working on a fix.
A routine update is reportedly causing a major headache for some Pixel Watch owners, with core health sensors suddenly going silent.
Misryoum reports that after a recent Fitbit update. certain users say SpO2 (blood oxygen) and skin temperature tracking stopped working on their watches.. The issue has been discussed by both Pixel Watch 3 and Pixel Watch 4 owners. with claims that the relevant permissions appear to be reset. leaving the sensors unable to resume even when users try to re-enable access.
In the discussions. affected owners describe a frustrating pattern: the permissions screen no longer shows an app requesting the needed access. which makes it hard to restore sensor functionality through normal settings.. While some users speculate about the scope. there’s no clear picture yet on how many people are impacted or whether the problem depends on specific software versions.
Insight: When health features depend on strict permission flows, even small update changes can ripple into “missing data” for users, and the effect is felt immediately in day-to-day tracking.
Google’s PixelCommunity account acknowledged the disruption and pointed to a permission-related problem. stating that work is underway to restore access to SpO2 and skin temperature tracking.. The message indicates Google and Fitbit are treating it as an active fix rather than a user-side configuration problem.
Meanwhile, separate reports in a Fitbit-focused discussion suggest the same behavior may extend beyond Pixel Watch 3.. In that thread. an owner of Pixel Watch 4 said the sensors were not showing in the Pixel Watch and Fitbit apps for an extended period. and a support response mirrored the same explanation about a recent firmware update and ongoing restoration work.
Insight: This timing is especially awkward for Google and Fitbit as they push users toward deeper engagement with their health platform, because reliability is often the deciding factor in whether people trust sensor-based insights.
The situation is still evolving, and Misryoum notes that at least one user claims a restart helped restore functionality. Still, the official acknowledgment of a permission-reset issue suggests many owners may need the broader fix rather than troubleshooting alone.
Insight: If you rely on SpO2 or skin temperature readings, it’s worth checking whether those sensors are currently available after updates, since permission resets can quietly interrupt the data trail until the underlying access issue is corrected.