Overview
- Media and forum reports indicate the rollout, which began earlier this month, has slowed or stopped as update notifications have disappeared for many Galaxy Watch 4 owners.
- Users describe battery life dropping to roughly 12–15 hours after installing One UI 8 Watch, with some also reporting that the always‑on display no longer works.
- A Samsung Community post documented wrist detection, BIA, and ECG failures after the update, and the user’s cache wipes and full resets did not restore the sensors.
- The same report notes sensors briefly function when the watch is worn flipped to the palm side, leaving it uncertain whether the problem stems from software or hardware.
- SamMobile notes India’s 44mm Bluetooth Watch 4 received a same‑day security patch (IYI4) followed by the large One UI 8 build (JYK4), and outlets report Samsung has not issued a fix or formal comment while the Watch 4 line is not slated for further major One UI upgrades.