Overview

• The option appears in the iOS 26 release candidate under Accessibility > Display & Text Size on iPhone 17 Pro models.
• Apple’s on-screen description says disabling PWM provides a different dimming method that can smooth output at low brightness but may affect performance in certain low-light conditions.
• Availability beyond the iPhone 17 Pro remains unconfirmed, and Apple has not issued official clarification.
• PWM rapidly switches OLED pixels on and off to control brightness, which some users report as visible flicker leading to headaches or eye strain.
• Coverage notes Apple’s approach appears to disable PWM dimming outright, differing from Google’s method that adjusts emission frequency, though the feature is based on pre-release software and could change before public rollout.