Many of the best TVs include HDMI 2.1 ports, but this feature is less common on smaller screen sizes. However, several of our best 50-inch TV picks — the LG C5, Samsung QN90F, and Vizio MQX — do include HDMI 2.1 support, which is useful for gaming enthusiasts. 

HDMI 2.1 connections can transmit signals at 4K/120Hz, along with variable refresh rate (VRR) and auto low latency mode (ALLM), when paired with a compatible gaming device, such as a PS5 or PC. These features provide a smooth gaming experience with fast motion, minimal lag, and reduced screen tearing. You can learn more in our guide to the best gaming TVs.

To enable HDMI 2.1 features, all of your home entertainment components must have HDMI 2.1 ports. So if you're hooking up a PS5 to a soundbar connected to your TV, all three devices must support HDMI 2.1. You also need to use ultra-high-speed HDMI cables rated for 48Gbps to pair everything together. Visit our guide to the best HDMI cables for recommendations and more details. 

New 50-inch TV models are expected to be unveiled during the CES tech show in Las Vegas from January 6 to 9. CES is traditionally where brands like Samsung, LG, TCL, and Hisense announce their latest display models for the new year. However, new TVs don't typically hit stores until the spring.

Although the benefits of 4K resolution are best appreciated on larger TV sets, a 50-inch display is still substantial enough to make 4K worthwhile, especially if you plan to sit close to it. 

However, the debate about whether 4K is worth it on a TV this size has become a moot point since major brands no longer sell 50-inch HDTVs. Most HDTV models are now restricted to 43 inches and under. If you're buying a 50-inch or larger TV in 2025, 4K is the standard.

For more 4K display recommendations in multiple sizes, check out our guide to the best 4K TVs.