Get Tom's Hardware's best news and in-depth reviews, straight to your inbox. You are now subscribed Your newsletter sign-up was successful Sometimes, we want to break away from the confined dimensions of our typical 27- and 32-inch monitors and experience something grander. That's why large-format gaming is a treat, but it can get really expensive. Thankfully, we've spotted a great deal for you — Gigabyte's S55U gaming monitor is on sale for just $499 on Amazon right now. That's a $500 discount on a hulking 4K 120 Hz display. All-time low - half price Featuring a 4K panel with 132 local dimming zones, 120 Hz refresh rate, and Dolby Atmos speakers, the Gigabyte S55U is a complete package. It offers all the gaming and media consumption features you need at an exceptional price, powered by Android TV at its core. As the name suggests, the S55U is a 55-inch "gaming monitor" with a 4K resolution and 120 Hz refresh rate.…