LG 77 Inch OLED77C55LA Smart 4K UHD HDR OLED TV
757/5765£2199.99
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About this product
Experience films and games like never before with this LG 77 Inch Smart TV that harnesses cutting-edge OLED evo technology for breathtaking picture quality. Self-lit pixels deliver perfect contrast and 100% colour accuracy, whilst the advanced Alpha9 Gen8 AI 4K processor works alongside Brightness Booster technology to enhance every frame with stunning clarity and brilliance. With HDR, Dolby Vision, HDR10 and HLG support, you'll enjoy incredibly vivid images with deep blacks and dazzling highlights, whilst the 120Hz motion rate keeps fast-action scenes buttery smooth.
LG's webOS smart platform brings thousands of shows and apps to your screen, including Netflix, Disney, Prime Video, BBC iPlayer, YouTube and Now TV, all controlled effortlessly with the AI Magic Remote. Dolby Atmos and 40W sound deliver immersive audio matching the stunning visuals, while voice control via Alexa and Google Assistant makes finding content easy. With 4 HDMI ports, 3 USB connections, built-in Wi-Fi, and Bluetooth, you have all the connectivity you need. At 4.71cm slim without its stand, this 77-inch OLED TV fits elegantly in any room, wall-mounted or on its included stand.
LG OLED C5 features the latest 9 AI Processor: the brain of the TV. This advanced processor is made for OLED, intuitively ensures premium picture and sound quality and delivers image enhancement through AI Super Upscaling. It will also upscale audio for a more cinematic experience.
Model number: OLED77C55LA.
2025 model.
Dimensions and Weight
- Screen size: 77 inches.
- Size of TV H98.2, W171.1, D4.71cm.
- Size of TV with stand: H103.5, W171.1, D26.7cm.
- Width of TV stand 52cm.
- Weight of TV without stand 23.5kg (unpackaged).
- Weight of TV with stand 27.1kg.
- Suitable for wall mounting 300 x 200 bracket.
- Length of cable: 1.5m.
- Packaged size H113, W187.9, D22.8cm.
- Packaged weight 38.5kg.
Screen Technology
- OLED TV Screen.
- 4K Ultra HD display resolution.
- Micro dimming technology improves the contrast by dimming individual sections of the TV screen.
- HDR.
- Dolby Vision.
- HDR10.
- HLG.
- Motion rate 120Hz.
- Resolution 3840 x 2160 pixels.
Sound Technology
- Dolby Atmos sound system.
- 40 watt RMS power output.
Connectivity
- 3 USB ports and 4 HDMI sockets.
- AV socket.
- Optical connection.
- Built in Wi-Fi.
- Ethernet connection.
- Bluetooth.
Smart TV features
- Voice control - works with Amazon Alexa, works with Google assistant, .
- Web OS operating system.
- Compatible with the following smart apps: Now TV, Disney+, Netflix, BBC iPlayer, Amazon Prime, YouTube.
- Internet browser.
- Miracast.
Additional features
- Features USB recording and video playback.
- DVB-T2 digital tuner.
- Alpha9 Gen8 AI 4K processor.
- CI plus slot.
- Sleep timer.
- Parental controls.
- Aerial not required.
Energy efficiency information:
- Energy efficiency class: F.
- Energy consumption per 1000h: 125kWh.
- Energy consumption in high dynamic mode per 1000h: 326kWh.
- Annual power consumption 173.75kWh.
- Standby power consumption 0.5 watt.
In the box
- TV.
- Smart remote control (requires 2 x AA batteries, included).
- Power cable.
- TV stand.
- Screws.
- Also in the box: User manual.
General information:
- Manufacturer's 1 year guarantee.
- EAN: 8806096363508.
Returns
If you want to return your product once it's been successfully delivered, a non-refundable collection charge of £30 will be applied, unless the product is faulty.
More info about our returns policy can be found here.
Energy efficiency information:
4.9
1531 reviews
97%
Recommended this product
Customers Say
LG OLED C5 TVs deliver stunning picture quality with deep blacks, vibrant colors, excellent HDR, and smooth performance. Great for gaming and streaming, though some users report app crashes and sound issues.
An AI generated summary based on recent customer reviews
Each review is verified as authentic by our independent third party and we only publish reviews from customers or Argos Testers who have purchased or used the item. Customers are incentivised to submit product reviews as part of a prize draw.
Unbelievable upgrade
[This review was collected as part of a promotion.] Going from a 2017 Samsung 4K TV was always going to be an upgrade but the upgrade to OLED is breathtaking. I bought the C5 primarily for gaming, which is fantastic with the game optimiser, increased refresh rate and HDR. After upgrading Netflix and Disney+ to let me watch Dolby Vision shows, I honestly can't imagine going back to an LCD/QLED TV. The blacks are fully black and even in dark scenes you can see every detail. Whilst it's quite a price increase over a QLED/lower price point MiniLED, the difference is immense.
Sam Bl, Lancashire
Happy with my Purchase
[This review was collected as part of a promotion.] We already had a Freely box (Manhattan Aero 4k) and Sonos Beam 2 setup. I was looking for something that would give an excellent quality picture and sound. We no longer have a tv aerial (reception here is poor, especially in the summer) and so I cannot comment on broadcast live tv. I have to admit that I had not realised how much bigger this screen would be (we had a 40" Panasonic before) and I have come in for some stick from my wife who has always said that she did not want the tv to dominate our living room. However, we have both quickly got used to the new size and it does mean that we can watch from further away in the room as well as close up. There are a lot of settings to try out and it has taken a while to find what we like best, but that is to be expected. I am very pleased with the depth of colour and contrast that the OLED screen provides. UHD on BBC iPlayer for looks superb. Dolby Vision and Atmos is equally good from Amazon Prime. Playing Mario Kart with the grandchildren works better with a four-way split on the bigger screen. I bought direct from the LG website at the lowest price I have seen. It arrived promptly and was easy to unpack and connect up.
Nhojjohn, East Yorkshire
Great if you can get a good deal
[This review was collected as part of a promotion.] Best picture in a 42 inch. Strange no Freely. Use a soundbar
Yorkshire made
55 inch LG OLED evo AI C5 4K Smart TV 2025
[This review was collected as part of a promotion.] Superb quality. LG is by far the best OLED on the market. Wouldn't change this brand.
Claudiu Nicolae, Southampton
Outstanding Picture Quality
[This review was collected as part of a promotion.] The LG OLED C5 65" delivers stunning picture quality with deep blacks, vibrant colors, and smooth performance. Setup was quick, the interface is easy to use, and movies and gaming look incredible. Highly recommended!
Nicker
Very good
[This review was collected as part of a promotion.] Very good tv superb colour can't recommend enough.
Zorg
Every home should have an LG OLED TV
[This review was collected as part of a promotion.] Great experience all round. The OLED TV is mind blowing never expected it too be so good. Bit like being at the cinema every Time I watch it.
Cleve
Recommend
[This review was collected as part of a promotion.] Brilliant TV, easy to use and set up, stunning picture and works great with my Denon AVR.
Bram
U app missing
Great picture. No 'U' app pre-intalled or available in the store though.
lg_rjc
best oled on the market
[This review was collected as part of a promotion.] Awesome picture quality. Fast UI, lots of apps and guides.
cpran, basingstoke
Hello there. The LG 77 Inch OLED77C55LA Smart 4K UHD HDR OLED TV has a Manufacturer's 1 year guarantee. Thanks for using Q and A.
The small print
*Prices correct as displayed but are subject to change.
The customer and brand answers you’ll see above are submitted independently. As we don’t review these answers, we can’t take responsibility for anything they may say. The responses from Argos colleagues are accurate at the time of publishing. For the latest info, you should check the product page.