TCL - 55" Class A400U Designer Series 4K UHD HDR QD-Mini LED Smart TV with Google TV, Art Library, and Flush Wall Mount (2026)
Model: 55A400U
SKU: 6686904
Reviews coming soon
Sold by
Reviews coming soon
Elevate your space with the Designer Series TV—where refined aesthetics meet cutting-edge performance. Powered by QD-Mini LED technology and Local Dimming Pro, it delivers striking contrast with deep blacks and brilliantly precise highlights, while High Brightness Pro ensures vivid clarity in any lighting. The TCL AiPQ Pro Processor intelligently optimizes every scene in real time, bringing out lifelike color, detail, and depth. With a native 144Hz refresh rate, Game Accelerator 288, and Motion Rate 480 with MEMC, fast-moving action stays ultra-smooth and responsive—perfect for gaming and sports alike. Premium ONKYO audio delivers rich, immersive sound, while support for an optional wireless subwoofer adds even greater depth and impact. A flush wall mount is included for a seamless, gallery-inspired installation that enhances the Designer Series' elegant profile. When the TV is off, Art Library lets you display curated artwork to complement your décor, while AI Art empowers you to create one-of-a-kind images that reflect your personal style, making the Designer Series as beautiful when idle as it is during every movie, show, or game.
Seamlessly integrates into modern interiors with refined style and stunning visuals.
Specially designed ultra-thin wall mount holds the Designer Series TV tight to the wall for an elegant look.
Comes with a curated Art Library, AI Art capability, multiple matte options, and a personal photo gallery mode.
This premium level of Mini-LED TV, now with the TCL Halo Control System, ensures a high-quality viewing experience.
An advanced technology suite that includes the new Super High Energy LED Microchip, Condensed Micro Lens, Micro-OD Reduced Optical Distance, High Contrast HVA Panel, Enhanced QLED, Fast Transient Response, 23-bit Backlight Controller, and Dynamic Light Algorithm for stunning “halo-free” images.
Full array local dimming that dynamically adapts to on-screen content for deep blacks and great contrast.
High Brightness Pro provides a great picture in virtually any room lighting environment.
TCL’s leading High Contrast HVA Panel technology provides incredible contrast for stunning pictures.
Experience incredible detail with 4X the resolution of 1080p Full HDTVs.
TCL’s QLED technology uses more vibrant Quantum crystals for improved colors, faithfully reproducing nearly all the DCI-P3 color space.
Crystal clear motion capability for fast moving action movies, sports, and video games, without image blur.
Win the game with up to blistering fast 288 VRR, creating lag-free gaming.
Automatically enables Game Mode for the lowest possible input lag and latency for an unmatched gaming performance.
Harnessing the power of AI to finely control picture clarity, contrast, color, motion, upscaling, and backlighting, all dynamically, based on the incoming video signal.
Combines multiple motion enhancement technologies for best-in-class motion clarity.
Special Picture Mode that preserves the creative intent of the filmmaker that adjust post-processing features, color, contrast, and brightness.
Enjoy enhanced contrast, accurate colors and fine details utilizing all the most advanced HDR formats.
Easily add a wireless subwoofer for powerful bass and up to four wireless speakers for flexible, perfectly tuned surround sound powered by Dolby Atmos FlexConnect.
Immerse yourself in captivating sound.
Advanced spatial audio processing found in movies, TV shows, and video games.
Advanced audio post-processing for your everyday content offering an immersive 3D sound, all from just your TV speakers.
Discover new movies, shows, and streaming content across your subscriptions. Personalized suggestions based on what you watch and love make it easy to find your next favorite using your voice or backlit voice remote.
Four high-speed HDMI inputs for the best connection to gaming consoles, set-top boxes, AV receiver, and more.
Share videos, photos, music, and more from Apple devices to your smart TV.
Pair your favorite Bluetooth headphones to the TV for a private listening experience.
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.
Need-haul away?
