Hidden deep in the Settings app is the option to turn off auto-brightness.
Jason CiprianiContributing Writer, ZDNet
Jason Cipriani is based out of beautiful Colorado and has been covering mobile technology news and reviewing the latest gadgets for the last six years. His work can also be found on sister site CNET in the How To section, as well as across several more online publications.
Instead of letting the
automatically adjust how bright your display needs to be,
has tucked a toggle to disable auto-brightness into the Settings app.
It's a bit hidden, but here's what you need to do: Open Settings > General > Accessibility > Display Accommodations and slide the switch next to Auto-Brightness to the Off position.
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Pay close attention to the warning just below the toggle. Because the iPhone X uses an OLED display, screen burn-in is inevitable, and by disabling auto-brightness you can potentially cause harm to your screen. It's up to you, of course, to decide if the risk is worth it.