LG C6 48-inch (OLED48C6) review

TV screen sizes are seemingly only going in one direction, with manufacturers across the board touting sets north of 100 inches as the new norm. For those of us with moderately sized living rooms, this trend is simply not in our best interests.

Naturally, going “small” means accepting a compromise on screen size and, therefore, cinematic scale. But does a smaller TV necessarily mean a less immersive viewing experience? The 48-inch LG C6 sets out to answer that question with a resounding no.

Considering we are huge fans of the 65-inch LG C6, which we reviewed back in April, this might not come as a surprise. That said, we’ve always said that picture and sound performance can vary greatly across different sizes, so the five-star performance of the 65-inch model isn’t necessarily indicative of the 48- and 42-inch versions.

Fortunately, the 48-inch C6 comes surprisingly close to matching its larger sibling, retaining much of the picture and sound performance that made the 65-inch model so impressive.

Price

The LG OLED48C6, to give it its proper title, launched at £1400 / $1600 / AU$2400 earlier this year, but frequent price drops in the UK and US have cut that down to around £1200 / $1200. Similar price drops haven’t yet appeared Down Under, unfortunately.

Competition at this level is rife, as we’re seeing more “small” OLEDs hit the market than ever before. LG itself currently offers its step-down B6 in this size for £999 / $800 / AU$1995, and a 48-inch version of the G6 is also on the market in the UK for £1399.

LG’s C-series models tend to stick around for quite some time, too, which means remaining stock of the five-star 48-inch LG C5 can still be snapped up for around £999.

LG’s archrival, Samsung, also offers its C6 equivalent, the S90H, for £1199 / $1300 / AU$1760. It presents an almost identical feature set at an almost identical price in the UK and US.

Last year’s Award-winning 48-inch OLED, the Panasonic Z90B, also remains on sale for £1199, making it a very competitive option.

Design

LG’s tried-and-true C-series design soldiers on for yet another year, and it carries forth the various pros and cons we’ve found with previous generations stretching back to 2022’s 48-inch C2.

The good news is that this is a superbly slim TV at just 4.6cm in thickness when you take into consideration the “backpack” that houses the electronics and connections. At its slimmest, the TV measures just 47mm, giving it a premium and stylish look, and the central pedestal stand means it can be placed on a narrow piece of furniture.

However, that stand still protrudes outwards in a slightly awkward way if you plan on pairing this TV with a soundbar. The smaller 42-inch C6 sports a pair of dual blade-style feet that you can squeeze a compact soundbar between.

LG has also bundled in the same Magic Remote that we’ve seen across the previous few generations of this TV. It keeps the ThinQ AI button in place of the source select – dare we say one of our least favourite changes in recent memory – and the buttons aren’t backlit; however, the scroll wheel and Nintendo Wii-style motion pointer control system are both novelties that can make interacting with the TV slightly more engaging.

Features

We’ll get straight into the panel tech, as LG could be taking an unconventional approach this year. Traditionally, the C-series has been staunchly WOLED, meaning it hasn’t adopted LG Display’s brightness-boosting Primary RGB Tandem OLED or Micro Lens Array display technology.

That changes with the C6, though. The company has essentially confirmed that the 77- and 83-inch versions sport RGB Tandem OLED panels by stating that they are ‘Brightness Booster Pro’ models rather than standard ‘Brightness Booster’ sets as per the rest of the sizes.

Rumours suggest, though, that the 48-inch C6, despite being a ‘Brightness Booster’ model, does in fact feature a Primary RGB Tandem OLED panel. We have attempted to get clarification from LG Display, but have been met with the usual “we don’t talk about panel tech" line.

Our approach is to focus on performance with real-world content rather than get bogged down in product components, but our testing suggests this could indeed be a Primary RGB Tandem OLED TV.

Moving on from the display, the C6 is powered by the Alpha 11 AI Processor 4K Gen3, which keeps the webOS smart platform running smoothly while also handling picture and sound processing. LG says that its latest processor utilises a new 12-bit processing pipeline, which brings extra colour and brightness precision to the table.

On top of this is Dual AI Super Resolution, which essentially runs lower-resolution content through an AI-backed picture upscaling process twice: the first time to sharpen edges, and the second to refine texture and detail. This should sharpen up non-4K content (think Blu-rays, DVDs and streaming), resulting in a more natural look.

AI HDR Remaster is also featured. This analyses content on a frame-by-frame basis to enhance contrast, sharpness and colour. SDR content takes on a more HDR-like appearance, and HDR content will take on a “more vibrant and realistic” look.

AI Picture Pro is also on board, which uses content recognition algorithms to adapt the TV’s settings to reduce noise, optimise contrast, manage colour saturation, and sharpen faces and text. AI Sound works in a similar way, as it uses content recognition to adapt the sound settings and performance to best suit what you’re watching. The remote even features an AI button that allows users to navigate the TV and troubleshoot issues using voice commands.

The AI features don’t stop there, though, as you’ll find a bountiful feast of AI-enhanced picture and sound modes on board too. AI Picture Wizard and AI Sound Wizard allow users to select from a range of preset image and sound samples to find their ideal personalised set-up without having to dig too deep into the picture menus.

That said, we find Filmmaker Mode (in the TV’s picture settings) delivers the best results.

Moving away from the near-endless list of AI features, the C6 supports a solid set of HDR formats, including HDR10, HLG and Dolby Vision. Samsung's HDR10+ isn’t supported, as per LG’s usual stance.

The Dolby support extends to audio too, as the C6 features Dolby Atmos through its built-in 2.2-channel 40W sound system, and through connected audio devices via HDMI eARC.

Speaking of HDMI, the C6 sports four full-bandwidth HDMI 2.1 sockets, all of which are capable of handling signals up to 4K/165Hz with VRR and ALLM. For those without a console, the C6 supports cloud gaming up to 4K/120Hz with HDR through the likes of Nvidia GeForce Now and Xbox. LG touts this feature as a world-first.

webOS is also a well-equipped, if frustratingly advertisement-heavy operating system (you can turn sponsored content off in the settings, thankfully), and LG has made a few tweaks this year to make things run even smoother.

Recent inputs are easier to access; there’s a new customisable My Page menu with widgets that turns the TV into a smart display when not in use, and a new “Continue Watching” rail also adorns the home page.

App support is also practically flawless, with all of the expected domestic and international apps supported and working as expected, with quick loading times to boot.

Picture quality

As we alluded to, the 48-inch C6 bears many of the positive picture markings of its 65-inch counterpart, despite it being significantly scaled down.

We’ve plugged our trusty Oppo UDP-203 4K Blu-ray player into the C6 and selected a handful of reference 4K discs from our library, including Civil War, Pan, Blade Runner 2049 and F1: The Movie.

While selecting Filmmaker Mode from the picture menu gets us most of the way to picture excellence, we opt to enable Cinematic Movement in the TruMotion settings to eliminate the touch of judder inherent in 24fps content. Cinema Home is also a worthwhile preset to explore, for those who don’t mind sacrificing some accuracy for a punchier picture.

With these settings dialled in, it’s hard to argue that the 48-inch C6 OLED doesn’t have all of what it takes to be a truly special compact OLED TV. The combination of deep blacks, excellent contrast control and punchy highlights creates a striking image with excellent depth and solidity, as evidenced in the final battle sequence of Civil War.

Rockets and flares light up the deep black sky with bursts of brightness, and the buildings of Washington DC are rendered with a superb sense of realism and detail. Throughout the sequence, we find that the C6 balances shadow depth and detail with impressive finesse too.

Onto a more colourful sequence from Pan, the scene in which a floating pirate ship sails past some floating orbs of water, we find that the C6 is capable of delivering rich, punchy greens and blues while also retaining the natural skin tones of the children on the ship. As the ship approaches the floating island of Neverland, the concentrated brightness of the sun burns with intensity while also retaining a clearly visible circular outline.

Motion also remains a highlight. We noted that motion looked “impressively smooth and controlled without introducing obvious artefacts or drifting into the dreaded soap-opera effect” with Cinematic Motion applied on the 65-inch version of this TV, and the same can be said for the 48-inch model.

The opening sequence of Blade Runner 2049 demonstrates this nicely; a tricky panning shot, a tracking shot of a hovering drone, and a shot of Sapper Morton stepping backwards are all handled smoothly yet naturally on the C6, despite these specific shots tripping other TVs up.

Rounding out our testing with F1: The Movie, the OLED48C6 truly shines. Colourful race car liveries pop yet never look garish or overcooked, and fireworks burst with vibrancy without appearing overblown. There is no apparent stuttering or juddering as the Porsche and BMW tussle for first place, and the C6 looks wonderfully sharp without verging into over-etched territory.

Sound quality

As was the case with the 65-inch version of this TV, the 48-inch C6 seems to be a sonic step forward for LG. While this TV doesn’t perform miracles, it’s certainly an upgrade over the 48-inch C5, which we criticised for sounding “distinctly flat” and lacking definition.

The C6, on the other hand, sounds crisper, weightier and more spacious. The atmospheric effects of the dystopian Los Angeles streets are presented with a solid sense of width and detail, and while the TV doesn’t reach for the ceiling with its Dolby Atmos height effects, there is a sense of spaciousness to the audio that accompanies the floating holographic adverts beamed onto Officer K’s apartment block in Blade Runner 2049.

Most crucially, the C6 projects voices slightly more, and there is a touch more warmth and tonality, which makes listening to dialogue more engaging. Bass is also mostly well controlled, although there isn’t much in the way of depth or tonal variation.

Now, we won’t deny that even a basic soundbar will run circles around the C6’s built-in speakers, and a Dolby Atmos soundbar will provide much more authentic height effects – the Sonos Beam (Gen 2) or Beam Ultra would make a perfect accompaniment, for example – but the improvement over the last generation model is worth commending.

That is, if you steer clear of the AI Sound setting. This continues to sound oddly synthetic, and while there is the option to tailor the sound to your liking, we find that avoiding it altogether provides a more natural and balanced presentation.

Verdict

LG’s 48-inch C6 is arguably the brand’s most interesting OLED TV in recent memory. While that might sound strange when the brand is selling a TV that is slimmer than an iPhone and powered by a magical wireless box, the company’s small mid-range OLED is a true dark horse.

If our theory is correct, it’s likely the cheapest way to acquire an RGB Tandem OLED TV, and if it’s not, then we’d really like to know how LG has pumped the brightness and vibrancy up to this extent.

Regardless, it’s fully featured, talented in the picture and sound departments, and it proves that you don’t need to sacrifice a considerable chunk of your living room to achieve a cinematically satisfying experience.

SCORES

• Picture 5
• Sound 4
• Features 5

MORE:

Read our review of the LG C5 48-inch

Also consider the LG C6 65-inch

Read our Panasonic Z90B 48-inch

Best TVs: flagship OLEDs and budget Mini LED sets tried and tested