42" LG OLED42C57LA
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42" LG OLED42C57LA
LG OLED42C57LA Smart TV
42″ OLED TV with 4K resolution and an AI processor
The LG OLED42C57LA is a smart OLED TV in a black finish with a 106cm (42″) screen and high 4K Ultra HD resolution. Its 100/120Hz refresh rate is easy on the eyes and ensures a smooth picture; Game Mode increases the refresh rate up to 144Hz. Performance is driven by the alpha 9 AI GEN8 processor with a host of features and certifications – for example, UL Perfect Black, which confirms its top-tier picture quality. Control is handled by a remote with AI elements for easier use of the LG TV. When idle, LG Gallery+ mode turns the screen into a personalised art canvas, with the option to integrate your own photos or videos with musical accompaniment. The built-in 20W speakers, combined with AI, deliver a virtual 11.1.2 channel sound system, and when connected to a soundbar, they further enhance the experience of watching sports, films or playing games. ²⁰ Dolby Atmos and Dolby Vision technologies significantly contribute to the high picture and sound quality. The webOS operating system provides updates for up to five years. ⁹ The Home Hub platform serves as a central point for controlling your smart home. ¹⁹ The LG OLED42C57LA Smart TV has an ultra-slim design and can be wall-mounted, which enhances its aesthetic appeal and saves space in the room. ¹⁵ With its consumption of 52–91kWh/1,000h, it falls into energy efficiency class G.
42" / OLED
Screen size / Display technology
4K Ultra HD / 100–120Hz
Resolution / Frequency
webOS
Operating system
20W
Sound power
300×200
VESA
Key features of the 42" LG OLED42C57LA Smart TV
- OLED panel with a 42″ (106cm) screen
- 4K Ultra HD resolution (3,840 × 2,160px)
- The LG OLED42C57LA features the alpha 9 AI GEN8 processor
- Refresh rate of 100/120Hz, Game Mode up to 144Hz
- Dolby Vision and Dolby Atmos technology
- webOS operating system with the Re:New program (up to 5 years of updates)
- 20W 2.0 speakers with virtual 11.1.2 sound option
- AI Magic Remote with voice control
- LG Gallery+ mode for displaying works of art and photos
- G-Sync, AMD FreeSync Premium, VRR support
- Cloud gaming capability (GeForce NOW, Xbox, Luna, etc.)
- Multi View function for displaying multiple sources simultaneously
- Wall-mountable smart TV with VESA mount for saving space
- Google Cast and Apple AirPlay integration
- Energy efficiency class G (52–91kWh / 1,000h)
alpha 9 AI GEN8 processor and technology for a superb OLED picture
The SMART OLED TV is equipped with the alpha 9 AI GEN8 processor, which upscales the picture resolution to 4K quality with rich colours and high brightness. Artificial intelligence recognises objects with pixel precision and optimises the picture for an uninterrupted viewing experience. ¹ Perfect Black technology, approved by UL, enhances the visual performance of the colour black in terms of brightness and contrast. UL Eyesafe certification reduces eye fatigue. ² The colours have also received certification for 100% volume and 100% fidelity – regardless of lighting conditions. ³ The AI Super Upscaling and OLED Dynamic Tone Mapping features analyse the elements of each image and improve the overall resolution, brightness, depth, and clarity. ⁴
Smart TV with AI Magic Remote and webOS smart features
The TV comes with an AI Magic Remote with AI integration. ²¹ This next-generation remote eliminates the need for another device – a motion sensor and scroll wheel partially replace the work of a traditional mouse. Voice commands are also available. ⁴ AI features include:
- AI Voice ID ⁵ – recognises the user based on their voice and offers personalised recommendations
- AI Search ⁶ – Microsoft Copilot allows you to get more results and solutions
- AI Chatbot ⁷ – assistance with setup and troubleshooting
- AI Concierge ⁸ – personalised keywords and recommendations based on search and viewing history
- AI Picture Wizard – algorithms learn your preferences from 1.6 billion picture possibilities
- AI Sound Wizard – create a sound profile from over 40 million parameters
- “Hi LG” – activates voice commands
LG Gallery+ turns your TV into a digital canvas with personalised content
When you're not watching the TV, the screen can transform into a living art canvas with impressive scenery and videos. ¹⁰ Thanks to personalisation, you can choose exactly the type of content you want to display. It is possible to add preset music to the picture or connect a mobile device via Bluetooth. This feature can also be used to display photos and videos taken with your smartphone. ¹¹ A personalised control panel creates an environment similar to a smartphone or tablet. Widgets can display, for example, the weather, current time, sports results, or Google calendar. ¹² Smart features include Always Ready, AI Brightness Control, and a motion sensor. ¹³
The LG OLED42C57LA has 20W sound with AI and a virtual 11.1.2 system
The OLED42C57LA model features 20W speakers (2.0) and, thanks to AI Voice Remastering technology, helps create a balanced sound environment. The technology can extract voices, music, and sound effects, and then optimise the sound to be as clear as possible. The Dynamic Sound Booster uses the power of the AI processor for an even more pronounced sound performance. Using deep learning, it creates a virtual 11.1.2 channel system that can fill the entire room with sound. ¹⁴
Connectivity of the LG OLED42C57LA Smart TV
The LG smart TV offers a diverse range of connections:
- 3× USB 2.0
- HDMI Audio Return Channel – (HDMI eARC 2)
- Bluetooth 5.3
- 4× HDMI
- CI Slot 1
- Wi-Fi 6
- LAN connector
- Simplink (HDMI CEC)
- 2× RF input (antenna/cable)
Multi View, LG Channels and smart content sharing
The LG smart TV offers a wide range of entertainment options thanks to the Multi View feature, which allows mirroring of various devices via Google Cast or AirPlay. ¹⁶ For example, the screen can be split into two parts to watch multiple sources simultaneously. Another feature is LG Channels – a streaming service with a variety of live broadcast channels and on-demand content.
Smart TV with 4K 120Hz Game Mode, VRR and cloud gaming
The LG smart TV offers the possibility of playing thousands of games through the LG TV with access to GeForce NOW, Amazon Luna, Blacknut, Boosteroid, and Xbox services. You can use a gamepad or the remote control for gaming. The LG OLED42C57LA enables cloud gaming in 4K resolution at 120Hz with HDR support and GeForce RTX 5080 graphics performance. A high-quality gaming experience is supported by G-Sync compatibility, 144Hz VRR, a low response time of 0.1ms certified by Intertek, AMD FreeSync Premium, and ClearMR 9000 certification. ¹⁷
Dolby Vision and Dolby Atmos for a cinematic experience
The LG OLED42C57LA Smart TV expands your viewing possibilities with a range of modern technologies and features. Thanks to them, you can enjoy films, series, and sports broadcasts in various lighting conditions throughout the day and evening. Significant roles are played by Dolby Vision, Dolby Atmos, and Ambient FILMMAKER MODE, which preserves the filmmakers' creative intent. ¹⁸
¹ Compared to the α7 Gen8 4K AI processor from the same year, based on internal specification comparison.
² The LG OLED display has been tested by UL for perfect black, measured according to the IDMS 11.5 circular light reflection method, based on typical indoor lighting (200 lux to 500 lux). Actual performance may vary depending on ambient lighting and viewing environment. LG OLED displays are tested by UL for perfect colours and meet IDMS 11.5 standards for circular light reflection. LG OLED TVs have been certified by eyesafe® as models with a circadian performance factor.
³ '100% colour accuracy' and '100% colour volume according to DCI-P3' apply to 2025 OLED TVs. LG OLED displays are tested by UL for perfect colours and meet IDMS 11.5 standards for circular light reflection. The LG OLED display is certified by Intertek for 100% colour accuracy, measured according to the CIE DE2000 standard with 125 colour samples. The display's colour gamut volume (CGV) meets or exceeds the CGV of the DCI-P3 colour space, which was independently verified by Intertek.
⁴ 'AI Picture Pro' does not work with copyrighted content on OTT services. The picture quality of upscaled content depends on the resolution of the input source.
⁵ Depending on the region and network connection, restricted or limited content may be displayed. Voice ID support may vary by region or country and is available on OLED, QNED, NanoCell and UHD TVs launched from 2024. It only works with applications that support a Voice ID account.
⁶ The AI Search feature is available on OLED, QNED, NanoCell and UHD TVs released from 2024. The US and Korea use the LLM model. An internet connection is required.
⁷ An internet connection is required. The AI Chatbot feature is only available in countries that support NLP in their native language. The AI Chatbot can be connected to customer service.
⁸ Supported menus and apps may vary by country. The menus displayed may differ upon release. Keyword recommendations vary by application and time of day.
⁹ The webOS Re:New Program applies to 2025 OLED/QNED/NanoCell/UHD TVs. The webOS Re:New program supports a total of four upgrades over five years, with the threshold being the pre-installed version of webOS, and the upgrade schedule varies from the end of the month to the beginning of the year. Updates and schedules for some features, applications, and services may vary by model and region. Upgrades are available for 2022 OLED and 2023 UHD models and higher.
¹⁰ Available content may vary by country. The content provided is subject to change. 4,000 items are only available in countries where webOS Pay is supported (Korea, USA, UK and selected EU countries). A subscription to LG Gallery+ is required for full access to content and features. A free one-month trial is offered exclusively to subscribers.
¹¹ The feature works if you are logged into your Google Photos account and have at least 10 photos in the app.
¹² Access to Google Calendar requires a Google account.
¹³ Brightness sensors may vary by model. Motion sensors are only available on M5 and G5 models.
¹⁴ Must be activated in the sound mode menu. Sound may vary depending on the listening environment.
¹⁵ Bezel size varies by model series and size.
¹⁶ Picture and sound settings are the same on both screens. Apple, the Apple logo, Apple TV, AirPlay and HomeKit are trademarks of Apple Inc., registered in the U.S. and other countries. Support for AirPlay 2, HomeKit, and Google Cast may vary by region and language.
¹⁷ Game Portal support may vary by country. Support for cloud gaming services and games within the Game Portal may vary by country. Some gaming services may require a subscription and a gamepad. A separate subscription is required. Offers may vary depending on the subscription plan. Only available on LG OLED M5, G5 and C5 models (including C5E, C5Z, CS5) and QNED9M. 144Hz only works with games or PC inputs that support 144Hz. HGiG is a group of volunteer companies from the gaming and television industries who work together to create and publish guidelines to improve the consumer gaming experience in HDR. HGiG support may vary by country. ClearMR is a VESA certification program for evaluating motion blur on screens. LG OLED displays have been certified by Intertek for a 0.1ms response time (grey-to-grey) and corresponding gaming performance.
¹⁸ Ambient FILMMAKER MODE is a trademark of UHD Alliance, Inc. Ambient FILMMAKER MODE with Dolby Vision is supported. Ambient FILMMAKER mode automatically starts on Apple TV+ and in the Amazon Prime Video app.
¹⁹ LG supports 'Matter' standard Wi-Fi devices. Supported 'Matter' services and features may vary depending on the connected devices. Initial connection of ThinQ and Matter devices should be done via the ThinQ mobile app. Use of the hands-free voice feature without a remote control is only possible with the alpha 9 AI and alpha 11 AI processors. May vary by product and region.
²⁰ The LG Soundbar can be purchased separately. Sound mode control may vary by model. Please note that the service may not be available at the time of purchase. An internet connection is required for updates. Compatible TV models may vary by region and country. Use of the LG TV remote is limited to certain functions only.
²¹ The design, availability and features of the AI Magic Remote may vary by region and supported language, even for the same model. Some features may require an internet connection. The AI Voice Recognition feature is only provided in countries that support NLP in their native language.
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LG electronics INC. Alfred-Herrhausen-Allee 3-5, 65760 Eschborn, Germany, [email protected], +49 6196 7883000
Specifications can be changed without notice. Images are for illustrative purposes only.
