One UI 8 on the Galaxy Watch 4 Classic is turning a fan favorite into a frustrating mess

The Samsung Galaxy Watch 4 Classic showing the Samsung Health app on wrist

Credit: Jimmy Westenberg / Android Authority
TL;DR

  • Instead of improving performance, the One UI 8 Watch update is apparently breaking core Galaxy Watch 4 Classic features for some users.
  • Wrist detection stops working, which disables health features like ECG and body composition.
  • Reports suggest Samsung has paused the rollout, and a fix may be coming.

If you have a Galaxy Watch 4 Classic, you might want to wait before updating to One UI 8 Watch. What was supposed to be a fresh lease on life for Samsung’s 2021 fan-favorite smartwatch is causing problems for some users.

The One UI 8 Watch update, built on Wear OS 6, began rolling out to Galaxy Watch 4 models in early December. However, instead of making the watch better, users say the update is causing the sensors to stop working.

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