Samsung QN55Q90TAFXZA 55-Inch 4K QLED Smart TV — main product image

Samsung QN55Q90TAFXZA 55-Inch 4K QLED Smart TV

Samsung

Samsung QN55Q90TAFXZA 55-Inch 4K QLED Smart TV

Name: Samsung QN55Q90TAFXZA 55-Inch 4K QLED Smart TV
Brand: Samsung
SKU: QN55Q90TAFXZA

★★★★★4.5 (962 reviews)

4KHDR

Samsung's Q90T 55-inch QLED delivers cinema-grade 4K picture quality with full array backlighting and intelligent upscaling.

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Overview

The Samsung QN55Q90TAFXZA is a 55-inch 4K QLED Smart TV from Samsung's 2020 flagship lineup, engineered to deliver premium picture quality through its combination of Quantum Dot color technology and Direct Full Array 16X backlighting. The full array local dimming system provides fine-grained control over brightness zones across the entire panel, enabling deep, inky blacks alongside brilliant highlights — a combination that produces striking HDR content. The Quantum Processor 4K leverages AI-driven upscaling to analyze and enhance each scene, making even lower-resolution cable broadcasts and streaming content appear noticeably sharper and more detailed.

Beyond picture quality, the Q90T addresses common LED TV shortcomings with its Ultra Viewing Angle layer, which maintains color integrity and contrast even when viewed from off-center positions. The Object Tracking Sound system, utilizing two top-mounted and two bottom-mounted speakers, creates a spatial audio effect that follows on-screen action. For smart home integration, Alexa is built in with optional hands-free activation, and the TV supports Bixby and Google Assistant via compatible devices. With HDMI 2.1 connectivity supporting 4K at 120Hz and variable refresh rate, the Q90T also serves as a capable gaming display. Its slim 1.4-inch profile and clean cable management system keep the installation looking tidy whether wall-mounted or placed on a stand.

Key Features

DIRECT FULL ARRAY 16X* (75", 65" & 55"): Fine control of the lighting zones behind the screen, further improve the richness of the blacks to whites.

ULTRA VIEWING ANGLE: Engineered to reduce glare and enhance color, providing a vibrant picture no matter where you sit.

QUANTUM HDR 16X: A wider range of brightness and color come together for a strikingly vivid and cinematic picture.Standby Power Consumption:0.5

OBJECT TRACKING SOUND: Two top and two bottom built-in TV speakers adjust the sound to follow the action.

QUANTUM PROCESSOR 4K: This powerful processor uses deep learning AI to transform everything you watch into stunning 4K.

ALEXA BUILT-IN: Ask more from your TV. Just ask Alexa to open apps, change the channel, search for movies and shows , play music, control your smart home devices and more. To talk to Alexa, press and hold the mic button on your remote. If you have hands-free enabled just say, "Alexa" and ask a question.

Dimensions w/o Stand(WxHxD): 48.3" x 27.8" x 1.4" | Dimensions w/ Stand(WxHxD): 48.3" x 31.3" x 9.3" | Stand Size(WxHxD): 13.5" x 9.5" x 9.3"

Specifications

Screen Size

55 inches

Resolution

4K UHD (3840 x 2160)

Display Technology

QLED

Backlighting

Direct Full Array 16X

HDR

Quantum HDR 16X

Processor

Quantum Processor 4K

Viewing Angle

Ultra Viewing Angle

Audio

Object Tracking Sound (2 top + 2 bottom speakers)

Voice Assistant

Alexa Built-in

Standby Power Consumption

0.5W

Dimensions (w/o Stand)

48.3" x 27.8" x 1.4"

Dimensions (w/ Stand)

48.3" x 31.3" x 9.3"

Stand Size

13.5" x 9.5" x 9.3"

Pros & Cons

👍 Pros

Direct Full Array 16X backlighting delivers deep blacks and precise contrast control across the entire screen
Ultra Viewing Angle technology preserves color accuracy and reduces washout when viewed from the side
Quantum Processor 4K uses AI-based upscaling to enhance lower-resolution content to near-4K quality
Built-in Object Tracking Sound provides surprisingly immersive audio from the TV's own speakers
HDMI 2.1 support with 4K/120Hz and VRR makes it a strong choice for gaming

👎 Cons

At 1.4 inches deep without the stand the panel is slim, but the stand footprint of 9.3 inches deep requires a fairly deep surface
The Q90T is a 2020 model, so it lacks some newer processing features found in subsequent Samsung QLED generations
Brightness and HDR performance, while strong, may not match higher-end mini-LED or OLED panels at this price point
Smart TV interface includes ads and promoted content in the menu system

Frequently Asked Questions

How many dimming zones does the Direct Full Array 16X backlight use on the 55-inch model?

Samsung uses the "16X" designation to indicate its highest tier of full array local dimming for this series, though the exact zone count is not publicly disclosed. It provides significantly finer control over brightness and contrast compared to edge-lit models.

Does the QN55Q90T support HDMI 2.1 features like 4K at 120Hz?

Yes, the Q90T includes an HDMI 2.1 port that supports 4K at 120Hz, variable refresh rate (VRR), and auto low latency mode (ALLM), making it suitable for next-gen gaming consoles.

What is Object Tracking Sound and how does it work on this TV?

Object Tracking Sound uses four built-in speakers — two at the top and two at the bottom of the panel — to create the impression that audio follows on-screen movement, producing a more immersive soundstage without an external sound system.

Can I control the Q90T with voice commands without a separate smart speaker?

Yes, Alexa is built directly into the TV. You can press and hold the mic button on the remote, or enable hands-free mode to use voice commands without any additional device.