Currently, you can find the Acer Predator 27-inch WQHD OLED 240Hz gaming monitor for as low as $500, which usually sells for $900. That’s a massive savings of $400, and as of writing this article, the Acer Predator X27U is the most affordable 27-inch 2K OLED monitor you can buy.

Alienware's 27-inch, 4K, 240Hz OLED gaming monitor brings the latest tech to a smaller size, and it's a great display that also undercuts a lot of the competition.

The Alienware AW2725Q is yet another excellent 27-inch 4K 240Hz QD-OLED monitor, and less expensive than the competition.