Pixel Watch missing some overnight data? Blame the March update

Source: Android Authority

Photo credit: Kaitlyn Cimino / Android Authority

TL;DR

• Pixel Watch wearables have been failing to collect SpO₂ and skin temperature data since the March update.
• A factory reset appears to resolve the issue for affected watches.
• Google has been contacted for more information and a potential fix.

Background

Google’s March update for the Pixel Watch is reportedly causing problems with overnight tracking of blood oxygen concentration (SpO₂) and skin temperature. The issue has been observed across multiple models, including the Pixel Watch 4, Pixel Watch 3, and Pixel Watch 2.

User Reports

Reddit

• Users have posted about missing overnight SpO₂ and skin temperature data with no explanation.
  • Example threads:
    • No SpO₂?
    • SpO₂ and skin temperature stopped
    • Blood oxygen and skin temp issue

PiunikaWeb

• PiunikaWeb compiled several of these reports, noting that the problem began over a recent weekend.
  • Source: Pixel Watch SpO₂ & skin temperature not working after March update

Potential Fixes

1. Clear Fitbit app cache

• Clear the Fitbit app cache on both the Pixel Watch and the paired phone, then restart both devices.
• Suggested by a Product Expert on the Pixel Watch Help forum.
• Note: Some users on the Fitbit Community forum reported that this did not resolve the issue.

2. Factory reset the Pixel Watch

• Several users confirmed that a factory reset fixed the missing data.
• This method is also endorsed by the official PixelCommunity Reddit account.

Outreach to Google

We have contacted Google for additional details about the problem and any upcoming fixes. Updates will be added to this post as soon as we receive a response.