The new Acer Nitro PG1 is the first portable monitor I actually want thanks to 4K resolution and up to 144 Hz refresh

I've reviewed a fair few portable monitors in my day. But none have I ever desired. Until now. The new Acer Nitro PG271K looks like it might be a tiny bit brilliant thanks to a combination of 4K res, slick looks and high refresh, though there is a slight catch.

The basics involve a 27-inch IPS panel with 3,840 by 2,160 pixels. Most portable monitors are 1080p, which is pretty horrible in terms of pixel density. So, that's win number one right there.

It also supports a 144 Hz refresh, though there's a proviso.