Update - November 20th, 1030 GMT: This deal is still available, albeit at £224 instead of £210. The Amazon listing at £200 has also disappeared. Original article continues below.
Alert: one of the best 240Hz monitors is available at half price in what's perhaps the best Black Friday monitor deal thus far. The LG 27GK750F-B doesn't have a memorable name, but it's the first 27 inch monitor we've seen to boast a ludicrously high 240Hz refresh rate. This makes it brilliant for fast-paced and competitive games like Counter-Strike, Fortnite or Black Ops 4, and now it's available for £210 after launching at £400 earlier this year.
If your PC is capable of churning out that many frames per second, you should see the same kind of boost to responsiveness by moving from 144Hz to 240Hz as you did from upgrading from 60Hz to 144Hz. It's not quite as dramatic a difference, to be sure, but when we tested it, it did feel easier to track moving targets and react quickly to suddenly appearing enemies. Streamers and esports professionals swear by 240Hz monitors for both casual and competitive play, and you don't need to compete at a high level to notice the benefits.
There are other 240Hz monitors on the market that scratch the same itch, but most are 24 or 25-inch monitors which some gamers find a little too small if you're sitting at a healthy distance from the screen. I personally found that the larger size makes it easier to pick out distant enemies, and the LG monitor includes various modes which highlight dark areas and change the colour balance to make spotting enemies even easier at a glance. A decent contrast ratio, low 1ms response time and a 400-nit peak brightness complete the package. The monitor is also nicely adjustable, with tilt, pivot and height adjustment, to make sure you can keep it at a comfortable angle.
The LG 27GK750F-B is available at the deal price of £210 from Laptops Direct, where it's in stock now. It's also available on pre-order on Amazon.co.uk for £200, if you'd prefer to save a little and get the monitor later on.
While the LG 27GK750F-B excels at gaming, it won't suit everyone. Its TN panel allows for this 240Hz refresh rate and ensures super low input lag, but it doesn't look quite as nice as an IPS screen when it comes to working or watching movies. If you'd like more of an all-rounder, then a high refresh rate IPS monitor might be a better bet - and in that case, we'd recommend the Acer Predator XB271HU, which is currently available for £120 off and is our favourite gaming monitor overall.
You can find all of our Black Friday monitor deals here, and the latest Digital Foundry recommendations for the best gaming monitors are here. Of course, you can check out our full Black Friday deals hub here too.