FWIW I have the ASUS ROG Swift PG32UCDM 31.5" 4K UHD (3840 x 2160) 240Hz Gaming ...

klausa · 2024-12-25T04:46:59 1735102019

Make sure your browser lets you refresh at those framerates.

Safari by default caps animations other than scrolling at 60fps (I think?).

zamalek · 2024-12-25T06:43:23 1735109003

This will let you know what your browser is allowing: https://www.testufo.com/framerates (it will also demonstrate the issue that the post is attempting to solve).

a1o · 2024-12-25T11:20:40 1735125640

I only get an hyphen on the iPhone

wrboyce · 2024-12-25T12:15:43 1735128943

I got 60fps/60Hz on mine (iPhone 16 Pro, iOS 18.2).

KuzMenachem · 2024-12-25T12:40:59 1735130459

Just FYI, you can go to Settings -> Safari -> Advanced -> Feature Flags -> Prefer Page Rendering Updates near 60fps and switch it off to get 120Hz