TL;DRSeveral Galaxy S26 Ultra users report eye strain, headaches, and dizziness after using the phone’s display.Reports span multiple Reddit threads, but others say they’ve had no issues with the display.Symptoms may relate to PWM dimming, though there’s no confirmed cause, and the reports remain anecdotal.The Samsung Galaxy S26 Ultra has been grabbing attention for its new Privacy Display feature, which limits viewing angles to keep prying eyes away. But while that’s been the headline upgrade, some early users are raising more general concerns. We recently highlighted potential display limitations on the device, and now we’ve seen online reports from people who say using the phone is causing eye strain — or worse. Across several Reddit threads (Examples: 1,2,3,4), several Galaxy S26 Ultra owners describe symptoms such as eye strain, headaches, dizziness, and nausea after using the phone. In some cases, they say the discomfort was enough to warrant returning the device reluctantly.