Trevor Nace explores the iPhone's "Hidden 120 Hz Refresh Rate"
His Safari settings tutorial draws a fast start, with viewers asking about battery life and looking for proof of smoother scrolling.
Trevor Nace
Story of Why this story? The video opened at a pace of 79,492 views a day, 28 times a normal first day on this channel (2,862).
How To Enable The Hidden 120 Hz Refresh Rate On iPhone
Smoother scrolling has a catch. Trevor Nace's tutorial is aimed at iPhones with ProMotion displays, not a software upgrade that can give every iPhone a faster screen.
“How To Enable The Hidden 120 Hz Refresh Rate On iPhone” reached roughly 55,000 views in its first 12 hours, an unusually quick start for his short tutorials. The appeal is specific: Nace goes beyond the familiar iPhone settings menu and into Safari's feature flags.
The description presents two changes as a route to smoother scrolling and animations: disabling a Safari flag that prefers page rendering at a lower frame rate, then switching off Limit Frame Rate in Accessibility. Nace also includes instructions for resetting Safari's feature flags if something goes wrong. One important distinction: ProMotion adjusts its refresh rate to suit the content, rather than keeping the display at its maximum all the time.
The comments bring practical questions to that promise. Battery life is a recurring concern, and several viewers want a visible demonstration of the result. Others ask why the relevant option is missing from their phones or report that their settings already match the tutorial. One viewer says Safari needed to be fully closed and reopened before they noticed a change, a small troubleshooting detail among the larger questions about what the switches actually do.
Published on Trari
Where next?
What viewers say
What effect does this have on battery life?
@GeezerGrampsSee it on YouTubeOmg I had no idea safari had its own setting, thank you!
@tim895See it on YouTubeThis helped. 😊 My accessibility setting was already off. But remember to fully quit Safari and restart it again.
@HappyBearSwedenSee it on YouTube
5 more comments
Let’s see final result
@fortunempofu433See it on YouTubeSo I reloaded Safari and it worked!! But not for Chrome?
@RanieriMJRSee it on YouTubeiPhone 16 Pro Max and settings as described and still 60Hz.
@Robert-tl9nfSee it on YouTubeIs it somewhere else in older phones. I am running iOS 27 on iPhone 14.
@KerbeygripSee it on YouTubeI don't see the limit frame rate button. It's not in the list. I updated my phone to 27 a few days ago.
@anthonykamm1007See it on YouTube
Public comments from the video's page on YouTube
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- Channel
- Trevor Nace
- Subscribers
- 1,510,000 ▲ 10,000 this week
- Channel views, last 7 days
- 3,634,587
- Channel views, pace per day
- 324,566 (on a normal day: 693,948)
- Video published
- October 9, 2026
- Video views so far
- 54,817 (less than a day online)
- Video views, pace per day
- 79,492
The numbers
The refresh-rate tutorial is drawing an unusually fast audience for Nace's short uploads. Its comment section is also much busier than his usual first day.
💡 Test your knowledge
What does Apple call its adaptive high-refresh-rate display technology?
ProMotion adjusts the display's refresh rate to suit the content being shown.