Skip to main contentSkip to footer

Explore more like this

Slide 1 of 11

Overview

Experience stunning images with the TCL A400 Pro 4K UHD QLED Fire smart TV. Enjoy QLED with Local Dimming Pro, a 144Hz native refresh rate, and Fire TV powered by Alexa+. 144Hz refresh rate offers smoother motion for sports and gaming.
  • 55" 4K smart TV best for family rooms and most living rooms
  • QLED produces vivid colour and strong brightness for bright living rooms

TCL 55" A400 Pro 4K UHD HDR QLED Fire TV Smart TV (55A400 Pro) - 2026

Brand: TCL
Model: 55A400 Pro
Web Code: 19823970
Sold and shipped by Best Buy

Screen Size: 55 in

55 in $1,099.99
75 in $1,999.99
85 in $2,499.99

Not available for deliverySold out online

Not available for pickup

Not available for pickup

Sorry, at this time, this product cannot be picked up in-store.

Best Buy Protection Plan

Coverage that goes above and beyond the manufacturer’s warranty.

Return Policy

30 days to return or exchange

Read return policy

Low Price Guarantee

Find a lower price anywhere else, we'll gladly match it. Exclusions apply.

See details

Manufacturer's Warranty

Check with the manufacturer for details or add Best Buy Protection for extra coverage.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What's included:

  • Remote Control
  • Power Cord
  • User Manual
  • Quick Start Guide
  • 2 x AAA Battery
  • TV Stands

What you need to know

  • 55" 4K TV best for family rooms and most living rooms
  • Fire TV with Alexa+ provides streaming and personalized voice control
  • QLED with Local Dimming Pro produces vivid colour and strong brightness
  • 144Hz refresh rate delivers smoother motion for sports and gaming
  • Dolby Atmos FlexConnect delivers crisp, clean sound that adapts to your space

Screen, Picture & Resolution

  • QLED with Local Dimming Pro enhances contrast and picture detail
  • High Brightness Pro helps maintain picture visibility in brighter rooms
  • Matte HVA panel improves screen clarity and perceived depth
  • AIPQ Pro Processor optimizes picture quality scene by scene

Great for Gaming

  • 144Hz native refresh rate supports smooth, responsive gameplay
  • Game Accelerator 288 enhances motion performance in supported games
  • Motion Rate 480 with MEMC helps reduce blur during fast action

Motion & Modes

  • Motion Rate 480 with MEMC improves motion clarity
  • 144Hz native refresh rate helps keep fast content looking smooth

Smart Features

  • Fire TV brings together streaming apps, live TV, and recommendations
  • Alexa+ enables smarter, more personalized voice control

Audio

  • Dolby Atmos FlexConnect adapts sound to your room layout
  • Integrated Onkyo speaker system delivers powerful built-in audio

Connections & Compatibility

  • Dolby Atmos FlexConnect supports compatible wireless speaker setups
  • Works with Google Assistant for hands-free voice control
  • Apple AirPlay 2 lets you stream content from compatible Apple devices
  • Slim flush wall mount enables a clean, low-profile installation

Additional Features

  • Wood-inspired bezel adds a refined designer look
  • Table stands included for flexible placement options

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.