LG C4 vs G4: the key differences between LG's new OLED TVs

LG G4 wall mounted in a living room with a soundbar and subwoofer
(Image credit: LG)

LG's new OLED TVs are always one of the highlights of the AV calendar, and this year is no different. The South Korean firm has revealed all of its new OLEDs – alongside its QNED TVs – at CES 2024, but two models stand out from the rest: the C4 and G4.

These both sit between the entry-level B4 and top-tier M4 Wireless, often making them the most popular in terms of the balance of features, performance and price point that they strike.

The C4 and G4 both pack plenty of envelope-pushing technology, but there are, of course, differences between them. Looking to find out what they are so you can plan your next TV choice accordingly? You've come to the right place...

LG C4 vs G4: price

LG G4 OLED TV at the CES trade show

(Image credit: What Hi-Fi?)

As is typical for LG TV launches at CES, prices for 2024 models haven't been released yet, and most likely won't until they are about to hit shop shelves in March/April. But their long line of predecessors can certainly set our expectations of what those forthcoming figures might be.

The G4 is the higher-end model and so will cost more. Here's a table comparing the launch prices of last year's C3 and G3 to give you an idea of the price gap between them.

Swipe to scroll horizontally
SizeLG C3LG G3
42in£1500 / $1400 / AU$2595N/A
48in£1600 / $1500 / AU$2895N/A
55in£2100 / $1900 / AU$3295£2600 / $2500 / AU$4195
65in£2900 / $2600 / AU$4295£3500 / $3300 / AU$5295
77in£4000 / $3600 / AU$6795£5000 / $4500 / AU$8395
83in£6500 / $5300 / AU$8995£7500 / $6500 / AU$10,995

What we do know is that these launch prices tend to come down steadily in the months following their release. The 'outgoing' 65-inch C3 and G3, for example, are currently around £1200/$1400/AU$2000 cheaper than at launch. 

You can see the latest prices on both (plus the 48-inch C3 and 55-inch G3) in your region below.

LG C4 vs G4: design

LG G4 OLED TV side-on in a Vegas hotel room

(Image credit: What Hi-Fi?)

The spec gap between the G4 and C4 has gotten bigger than ever this year, but the two TVs are actually closer in terms of design.

For the first time, the smaller models of G4 (55 and 65 inches) will come with a stand. The larger sizes (77, 83 and 97 inches) have the Zero Gap Wall Mount for hanging it flush against your wall. Previously, all sizes of G3 only shipped with the wall bracket.

Most sizes of C4 (48, 55, 65, 77 and 83 inches) come with a stand, except for the 42-inch model, which has feet.

Both TVs look very similar to the models they replace. The G4 has the same picture frame-like design, and same 'step' around the edge of the back, while the C4 looks just as slim as the C3 before it.

LG C4 vs G4: features

LG OLED48C3 with a racing driver on screen

Note: this is the 48-inch LG C3, as pictures of the C4 weren't available at time of publication. (Image credit: What Hi-Fi? / Netflix, Overhaul)

Naturally, being a pricier model, the G4 offers some extra features over the C4. Like the G3, it has next-gen Micro Lens Array (MLA) panel technology and a heatsink, both of which help increase picture brightness (for the first time, MLA comes to the 83-inch model this year too). This is also facilitated by the new Alpha 11 processor that unleashes a new Peak Highlighter feature. LG says this will reach a peak brightness level 150 per cent higher than a 'traditional' OLED (such as the B4) but only within a small 3 per cent window. Expect punchy, bright highlights then.

The Alpha 11 brings other improvements too – a 70 per cent increase in graphics power and a 30 per cent boost to general processing. Two new features also come as part of LG's AI Picture Pro: AI Director Processing (which adapts the picture to best match the director's intended colour tone) and Object Enhancing by Visual Perception (which analyses and enhances each pixel).

Better audio is another promise of the Alpha 11. AI Sound Pro will now process virtual 11.1.2 surround upmixing (up from 9.1.2 on the G3), while a voice remastering feature improves dialogue clarity.

New gaming features? Why of course. The refresh rate has been upped from 120Hz to 144Hz for PC gamers, while full Nvidia G-Sync certification makes its debut. The C4 gets these too, to complement its already excellent suite of gaming features: four HDMI 2.1 ports, LG's Game Optimiser menu, ALLM and VRR.

This year marks the first time LG's C- and G- series models have different processors. The C4 misses out on the Alpha 11, instead getting an upgraded version of the Alpha 9 found in last year's C3. This allows for the same audio upmixing and voice mastering as the G4, but not the Peak Highlighter feature. It also lacks the heatsink and MLA technology of the G4. Still, LG claims the C4 will still be brighter than its C3 predecessor. 

Both the G4 and C4 run the same webOS 24 operating system, which comes with at least five years of free updates, recommendations on the home screen, password-protected user accounts and more. You can read the full feature list here.

LG C4 vs G4: picture

LG G4 OLED TV showing Foundation on Apple TV+

(Image credit: What Hi-Fi?)

We had a brief hands-on session with the G4 at the CES trade show in Las Vegas, so while we don't have a complete idea of how it performs, we do have some idea.

Firstly, the MLA tech is really impressive, especially on the monster 83-inch model (the first time it has been used on a TV this size). In our hands-on review, we called it "utterly glorious". Colours are bright, rich and vibrant, while Apple TV+'s Foundation looked punchy without sacrificing warmth or natural-looking skin tones.

Placed side by side with the C4 (which was in the same demo session), the G4 was noticeably brighter, more vibrant and crisper. You can really see what your extra money gets you.

Last year's C3 offered fewer significant improvements over the excellent C2 and renewed competition from Sony in the form of the A80L. The 65-inch C3 scored four out of five stars, while the 48-inch C3 earned the full star set. The C3 might not match the G3 for brightness, but it still delivers a fantastic picture – just like the C2 did, but with a little extra pop and punch added to the recipe. In fact, this prompted us to call the 48-inch C3 the best TV at its size you can currently buy.

LG C4 vs G4: sound

LG OLED48C3 with a truck on screen

The 48-inch LG C3 (C4 images aren't available at the time of publication) (Image credit: What Hi-Fi? / Netflix, Overhaul)

From the sublime to the ridiculous, LG's TVs look fantastic... but like many flatscreen TVs of today they sound pretty woeful. The G3 actually managed to somehow sound worse than the C3, despite being more expensive.

LG is at least looking to address the problem, adding more channels for its AI Sound Pro's virtual upmixing. Last year, we found AI Sound Pro borderline unlistenable because it was so harsh and thin, so hopefully LG has addressed that too.

Ultimately, LG hasn't made a big song and dance about audio improvements for its 2024 OLEDs, so we aren't expecting huge leaps and bounds (our hands-on didn't include an audio demo, sadly). That said, when you're spending this kind of money on a new TV, we recommend you buy a separate soundbar anyway so that the sound quality of your TV set-up can match your investment in picture quality.

LG C4 vs G4: early verdict

Both of these LG OLED TVs will be ones to watch this year. The C4 and G4 offer plenty of new features over their respective predecessors and look to build upon an excellent legacy. If LG can get the pricing right against the competition from Sony, Samsung and Panasonic, we wouldn't be surprised if they proved to be two of the very best TVs of 2024. 

The gap between the two models has never been wider, with the G4 offering a better processor to go alongside its extra MLA tech and heatsink. Will that mean the C4 gets cheaper, or will LG bump up the G4's price even higher? Answers to these questions are still weeks away...

MORE:

Read our full LG G3 and LG C3 reviews

Our rundown of the best LG TVs you can buy

LG 2024 OLED TV range: everything you need to know about this year's lineup

Joe Svetlik

Joe has been writing about tech for 17 years, first on staff at T3 magazine, then in a freelance capacity for Stuff, The Sunday Times Travel Magazine, Men's Health, GQ, The Mirror, Trusted Reviews, TechRadar and many more (including What Hi-Fi?). His specialities include all things mobile, headphones and speakers that he can't justifying spending money on.