Apple Watch Ultra 2 models and ask customers to make sure their affected models are updated to the latest version, according to a report. Apple is expected to roll out watchOS 10.1, the first notable software update for its operating system for smartwatches since September, but it is unclear whether the flickering issues will be fixed with this update.
MacRumors Apple Watch models that causes the screen to flicker or pulse for a short period. The problem appears to be related to the always-on mode on the smartwatch, but does not specify which models are affected.

Apple Watch Ultra 2 s are complaining of flickering and colour tint issues
Photo Credit: Screenshot/ Reddit
Based on reports on Reddit and Apple's community forum, s with the latest models — the Apple Watch Series 9 and the Apple Watch Ultra 2 — appear to be affected by the issue. One states that the Watch Ultra 2 screen flickers when the wearer raises their wrist, while another says that the issue occurs when a timer is running on the smartwatch and when the Modular Ultra watch face is in use.
Another on the same thread on Reddit complains that some complications on the Apple Watch Ultra 2 flash pink when raising their wrist. The issue persists on a replacement watch provided by Apple, according to another . On Apple's community forum, two s have complained that the same issue is affecting their Apple Watch Series 9 when they raise the screen to wake the watch.
Meanwhile, updating to watchOS 10.1 beta 3, which was recent rolled out, appears to resolve the issue for a on the Reddit thread. According to the MacRumors report, Apple has asked Apple Authorized Service Providers to refrain from repairing affected Apple Watch models and ask s to update their devices to future software releases, which suggests that this is a software-related issue. However, it is currently unclear whether updating to watchOS 10.1 — expected to roll out next week — will resolve the screen flickering issues on the affected Apple Watch models.