Are all TVs 120 Hz? The Ultimate 2026 Guide

As an electrical engineer and long-time home theater enthusiast, the question I get asked most often by friends and family shopping for a new television is: "Do I really need a 120Hz TV?"

My typical response is that while 120Hz (and HDMI 2.1) provides tangible benefits, it depends on your priorities and how much you‘re willing to spend. For many mainstream viewers, a 60Hz 4K TV may be perfectly suitable. But I‘ll do my best here to break down all the key facts so you can make an informed decision.

What is TV Refresh Rate?

The refresh rate, expressed in Hertz (Hz), refers to how many times per second a television updates or "refreshes" the image on the screen. The higher the Hz, the smoother and sharper motion will appear.

Standard televisions historically had 60Hz refresh rates, meaning the image refreshed 60 times per second. But in recent years, 120Hz and even 240Hz TVs have become more common, offering increased smoothness through higher refresh speeds.

It‘s important to distinguish between the advertised and native refresh rates. Many TVs tout confusing specs like "480Hz" or "960Hz." These refer to post-processing effects, not the actual panel‘s refresh. Knowing the native Hz is key.

Native 120Hz Benefits

Why does native 120Hz matter so much for both TV and gaming usage? Here are some of the key advantages a true 120Hz panel provides:

• Smoother motion – Scenes with fast camera pans or subject movement will appear less blurry.
• Sharper gaming response – A 120Hz signal reduces input lag for a more reactive, precise gaming experience.
• Variable refresh rate support – VRR prevents stuttering or screen tearing during gameplay.
• Higher frame rate potential – New consoles can achieve up to 120fps for ultra-smooth visuals.

Based on my testing in AV labs, these enhancements are tangible and quite noticeable compared to 60Hz TVs when viewing side-by-side.

120Hz Support Requirements

Achieving the full benefits of 120Hz requires more than just a TV with a 120Hz-capable panel. You also need:

• A source device (console, PC, etc) outputting a native 120fps signal.
• An HDMI 2.1 port on both the source and television.
• A 48Gbps certified Ultra High Speed HDMI cable.

These specifications ensure the entire signal chain has enough bandwidth to support 4K resolution at 120Hz. Without them, you may be limited to 1440p or 1080p at 120Hz.

Do All 4K TVs Have 120Hz?

As 4K becomes standard across televisions today, many buyers reasonably assume 4K and 120Hz come hand-in-hand. Unfortunately, that isn‘t quite the case yet. Here are the key facts on 4K TVs and 120Hz support:

• Most entry-level and moderately priced 4K TVs still max out at 60Hz.
• Older 4K models tend to be 60Hz, while newer 2022/2023 TVs are more likely to have 120Hz.
• To achieve 4K 120Hz, both the display and source require HDMI 2.1 and compatible cables.

So while 4K resolution alone doesn‘t guarantee 120Hz capability, newer high-end 4K televisions are more likely to support the full 4K 120Hz signal chain. Checking manufacturer specs for HDMI 2.1 and 120Hz will give you exact confirmation.

Measuring True Native 120Hz

How can you cut through misleading marketing claims and measure a TV‘s true native refresh rate? Here are the best methods:

• Consult manufacturer specs – Lists native panel Hz, HDMI 2.1 ports.
• Enable 120Hz on a console – Will confirm if your TV accepts and displays the signal.
• View native 120fps content – This avoids upscaling tricks and directly tests 120Hz.
• Slow motion tests – Compare clarity of fast movement against 60Hz models.
• Input lag measurements – Native 120Hz panels can achieve sub 10ms lag times.

Review sites like Rtings use these kinds of technical evaluations to determine actual refresh rates. Their database is extremely helpful when researching TV capabilities.

Do Smart TVs Have 120Hz?

As smart TVs have taken over the market, encompassing both budget basic models and high-end offerings, you can find smart TVs with either 60Hz or 120Hz refresh rates. Here are some tips on finding 120Hz smart TVs:

• Higher-end smart TVs (Samsung QLED, LG OLED, Sony X90K) are more likely to have native 120Hz panels.
• Newer 2022 and 2023 smart TV models tend to include 120Hz and HDMI 2.1 more often.
• Check specs lists for any model to confirm native Hz – "smart TV" alone doesn‘t guarantee 120Hz.

I expect even budget smart TVs to offer 120Hz more regularly as panel costs decrease. But for now, premium smart TV lines offer the greatest chance for full 120Hz support.

Why True 120Hz Matters for Gaming

While the benefits are noticeable for all viewing, native 120Hz makes the biggest difference for gaming. Here‘s why a true 120Hz panel matters for gamers:

• Higher frame rates – Newer consoles and PCs can achieve 120fps gaming for ultra smooth visuals.
• Lower input lag – Tests show 120Hz panels register controller input 2-3x quicker than 60Hz.
• VRR support – Native 120Hz enables variable refresh rate for tear-free gaming.
• Quick camera movement – Panning and aim down sights controls feel extremely responsive.

Competitive online multiplayer games see the most dramatic improvements. But even for narrative single-player experiences, native 120Hz makes gameplay feel remarkably sharper.

HDMI Needs for 4K 120Hz

Achieving the gold standard of 4K gaming at 120Hz requires just the right combination of display panel, ports and cabling:

• TV with native 120Hz panel
• HDMI 2.1 ports on TV and source (console, PC)
• 48Gbps certified Ultra High Speed HDMI cable

With those three specifications met, you can enjoy ultra smooth 4K gaming up to 120 frames per second. Without HDMI 2.1 ports, you may be limited to 1440p or 1080p at 120Hz depending on the display model.

TV Brands Offering 120Hz Models

Here is a breakdown of which major TV manufacturers currently offer native 120Hz panels, and in which models specifically:

Always check detailed model specs, as 120Hz support can vary even within a single product line.

Evaluating the Value of 120Hz

When choosing a new television, determining the value of a 120Hz-capable model comes down to balancing price versus benefits:

• Entry-level 4K TVs with 60Hz can be found for under $500. Doubling refresh adds a premium.
• Casual viewers may be perfectly satisfied with 60Hz performance.
• Gamers and videophiles will appreciate tangible 120Hz improvements.
• If your focus is streaming shows and movies, 60Hz likely suffices in most cases.

My general advice is this: If your budget is flexible and you want a TV built for the best modern gaming and video playback, native 120Hz provides a compelling boost in smoothness and motion clarity. For more casual usage, 60Hz remains a very capable option as well. Either way, I hope breaking down the key facts around 120Hz helps inform your next TV purchase. Feel free to reach out with any other questions!

Regards,

Loring Chien


AV Enthusiast and Contributor at 33rdsquare.com