What causes the dimness issues on Apple Watch Ultra 2 at night

Several users have reported that when they tap the watch to wake it, the screen initially brightens but then quickly dims again, sometimes even flashing into night mode before reverting back. Disabling night mode seems to alleviate some of the dimming issues, suggesting a software-related problem rather than a hardware defect[1][3].

Additionally, users have noted that even when the brightness is set to maximum, the auto-dimming feature still limits visibility in dark environments. This has led to frustration, as many feel that they should have the option to override the sensor's settings to ensure adequate brightness regardless of ambient light conditions[2][4][5].

Overall, the complaints indicate that while the automatic brightness feature is intended to enhance user experience by saving battery life, it inadvertently detracts from usability in low-light situations, prompting calls for a software update to allow users more control over display settings.