LG's five-star, Award-winning C5 OLED TV might no longer be the latest model on the market, but that is currently working in its favour.
The mid-range entry in LG's 2025 lineup is still a formidable TV, and we're seeing prices drop lower than ever before. And with Amazon Prime Day on the horizon, we're expecting even bigger savings.
The C5 offers much of what we loved about LG's new C6 OLED TV, all at a lower price. Primarily, the ability to stick it into Filmmaker Mode and reap the rewards of its superbly detailed, contrast-rich picture.
It's also a top choice for gamers thanks to its four full bandwidth HDMI 2.1 sockets, and LG is even adding more audio functionality with a recent update that enables Dolby Atmos FlexConnect.
With screen sizes ranging from a compact 42 inches to a sizeable 83 inches, the C5 is a truly versatile television, and it's the one we recommend watching this Prime Day.
The value for money proposition it offers is second to none in the OLED market, and with prices plummeting, that's only going to become more apparent over time.
We've collected the best deals across all screen sizes below, so if you're eyeing up an LG C5, then simply check here to find the very best price.
LG OLED42C5 (42-inch)
Launch price: £1099 / $1399 / AU$1695
Like the other sizes of C5, this isn't a huge step on from its predecessor. But given the quality of the C4, even a modest upgrade still makes for a phenomenal TV – a What Hi-Fi? Award winner, no less.
Instead of the pedestal stand of the other sizes, it has blade-style feet. But it packs all the same gaming smarts (including four HDMI 2.1 ports) of its larger siblings into a package compact enough to serve as a second set, or to suit a smaller lounge.
Of course, it helps that lots of TV makers have shunned the 42-inch size recently, instead opting to go large. But the C5 would stand out even in a crowded market, it's that good.
- Read our LG OLED42C5 review
LG OLED48C5 (48-inch)
Launch price: £1399 / $1599 / AU$2495
The 48-inch model is about as premium as TVs come at this size. Again, you get the same unbeatable gaming spec as the others in the C5 series, including four HDMI 2.1 ports and gaming features like VRR and ALLM.
Competition is much fiercer at this size than at 42 inches, however. So these discounts are very welcome – the price cuts have been more aggressive as the TV gets closer to its one-year anniversary.
The lack of decent audio is more noticeable at this size, so you will want to invest in a decent soundbar. But if you can find a deal, this TV will not disappoint.
- Read our LG OLED48C5 review
LG OLED55C5 (55-inch)
Launch price: £1900 / $1999 / AU$3295
Once you get to 55 inches, manufacturers start equipping their TVs with more sophisticated tech – think more advanced panels capable of delivering brighter pictures. The good stuff, in other words.
That's certainly the case here. Because while the upgrades over the C4 might look a little thin on paper (consisting of just a brighter screen and AI-focussed software), they deliver another stunning TV that's among the best of its size. Hence the 2025 What Hi-Fi? Award.
Yes, the design (unchanged since 2022's C2) is starting to look a bit dated. And yes, the sound is still sub-par, especially given the quality of its visuals. But for a stacked feature set (including unparalleled gaming prowess) and eye-popping picture, the C5 is the best 55-inch TV for most people.
- Read our LG OLED55C5 review
LG OLED65C5 (65-inch)
Launch price: £2700 / $2699 / AU$4295
We haven't tested the 65-inch model, but it should be identical to the Award-winning 55-incher, just slightly bigger.
You can expect the same stellar picture quality, immense gaming specs and webOS operating system, which comes with all the usual streaming apps.
The picture should look all the more engrossing at this size. In our review, we praised the 55-incher's "rich, solid and engaging picture that balances vibrancy and authenticity," along with the "excellent contrast and image solidity."
Throw in comprehensive HDR support and that extensive feature spec, and you've got quite a TV on your hands.
LG OLED77C5 (77-inch)
Launch price: £4499 / $3699 / AU$5995
If you have the space – and budget – for a 77-inch TV, you might feel a little shortchanged by the 40W built-in sound system. But the least you can do is partner it with one of the best soundbars.
Discounts are still likely with this size model, so we certainly wouldn't recommend paying full price. Check out the best deals below.
LG OLED83C5 (83-inch)
Launch price: £5999 / $5399 / AU$7995
With the same 40W sound system as the 55-inch C5, the 83-incher will be woefully underpowered in the audio department. But we'll say it again, you really should buy a separate soundbar.
At this size, something like the KEF XIO, Sonos Arc Ultra or Sennheiser Ambeo Soundbar Max should suffice. Anything less, and you really aren't doing it justice.
The 83-inch C5's stand is a little wider to accommodate its massive size. But otherwise, this TV has an identical spec to the 55-inch size and above.
Is the LG C5 worth it?
It is. It earned five stars in all three sizes we've reviewed, with the 42- and 55-inch sizes winning What Hi-Fi? Awards. Now that the prices are dropping, it's better value than ever.
Should I get a C5 or a C6
LG's previous few C-series OLEDs have been fairly iterative upgrades, but the C6 does take things up a notch when you get to the two largest screen sizes.
The 77- and 83-inch C6 comes with a brighter Primary RGB Tadem OLED panel (the same one from the five-star G5), as well as LG's new Hyper Radiant Colour technology. All other sizes use WOLED. If your budget allows, springing for the C6 could make more sense.
We've not yet had the chance to test it in those larger screen sizes, but we'll report back once we have.
If you're looking at the remaining sizes, then the upgrades become less apparent. The 42-, 48-, 55-, and 65-inch sizes all seem to be modest upgrades over their predecessors, so if value for money is your top priority, then the C5 is a more sensible choice.
Is the LG C5 good for gaming?
It's incredible how many TVs still only offer two HDMI 2.1 ports. But you'll be glad to hear that the LG C5 isn't among them.
Four HDMI 2.1 ports mean you can stay connected to three next-gen gaming consoles / gaming PCs and a soundbar at the same time, with no port switching required.
HDMI 2.1 gives you support for various gaming features like VRR, ALLM and 4K/120Hz, meaning less lag and clearer picture quality while you play.
Does the LG C5 have a heatsink?
No, it does not. Nor does it have the pricier G5's Primary RGB Tandem OLED panel, nor the now-retired MLA OLED technology of 2024's G4. But it still manages to be brighter than the C4 – LG hasn't said by how much, but it is noticeable, as we commented in our reviews.
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