RATED
Great
8.4/10
54.6″ TCL 55A400U – Full Specifications
Smaller rooms and gaming corners wanting a Mini LED Google TV can look at the TCL 55A400U (54.6 in), a 55-class Designer Series model.
tcl●TV
Display
54.6 in, HVA, Mini LED, 3840 x 2160 pixels
54.6
Refresh rate
48 Hz - 144 Hz
48 Hz
Dimensions
1228 x 710 x 39.9 mm
1228
Weight
13.4 kg
13.4 k
Processor
MediaTek 9655+
9655
Overview
Smaller rooms and gaming corners wanting a Mini LED Google TV can look at the TCL 55A400U (54.6 in), a 55-class Designer Series model. Its HVA panel with anti-glare matte coating shows 3840 × 2160 at 80 ppi over a 48-144 Hz range with VRR and AMD FreeSync Premium Pro, and lists 2,500 cd/m² peak brightness and 93 percent DCI-P3. Two of four HDMI inputs are version 2.1, and Dolby Atmos is supported. It weighs 14.5 kg with the stand and 13.4 kg without it and uses 400 × 400 mm VESA.
- 54.6 in HVA, Mini LED, 80 ppi
- 48-144 Hz, VRR, FreeSync Premium Pro
- 2,500 cd/m² peak, 93 percent DCI-P3
- 4 HDMI (2 × 2.1), 1 × USB
- 14.5 kg with stand, 400 × 400 VESA
Pros & Cons
Pros
- 55A400U brings Mini LED and 144 Hz
- Light 13.4 kg panel without stand
- 55A400U has two HDMI 2.1 console ports
- Anti-glare matte coating is listed here
- Dolby Atmos support is listed as well
Cons
- 55A400U fits only one USB socket
- Larger 400 × 400 mm VESA pattern
- Two HDMI ports are not version 2.1
- Basic built-in speakers, so a soundbar helps for movies
Score & Ratings
8.4/10
Great
Television Identity & Market
13
| Specification | Value |
|---|---|
| Brand | TCL |
| Series | A400U |
| Model | 55A400U |
| Model Alias | 55" TCL A400U Premium Wallpaper QD-Mini LED TV |
| Full Product Name | TCL 55A400U |
| Model Year | 2026 |
| TV Category | Premium Design-Focused Tier |
| Market Position | Designer Series QD-Mini LED |
| Primary Use | Design-Conscious Premium Home Entertainment |
| Region / Variant | Not specified |
| Launch Status | 2026 model year |
| Available Colors | Black |
| Warranty | 1 year limited warranty |
Screen Geometry & Format
8
| Specification | Value |
|---|---|
| Screen Size | 54.6 in |
| Marketed Screen Size | 54.6 in |
| Exact Diagonal | 1388 mm / 138.8 cm / 54.6457 in / 4.5538 ft |
| Aspect Ratio | 16:9 |
| Active Display Width | 1209.6 mm / 120.96 cm / 47.622 in / 3.9685 ft |
| Active Display Height | 680.4 mm / 68.04 cm / 26.7874 in / 2.2323 ft |
| Screen-to-Body Ratio | 94.4 % |
| 3D Support | No |
54.6" Display Size (138.7 cm) 16:9
Resolution at a Glance
Panel Architecture & Light Control
7
| Specification | Value |
|---|---|
| Panel Manufacturer | CSOT |
| Panel Type | HVA |
| Panel Technology | VA |
| Quantum Dot | Yes |
| Backlight Type | Mini LED |
| Panel Bit Depth | 10 bits |
| Display Colors | 1.07 billion colors / 30-bit |
Surface Treatment & Viewing Layer
1
| Specification | Value |
|---|---|
| Screen Coating | Anti-glare / Matte |
Resolution, Scaling & Signal
4
| Specification | Value |
|---|---|
| Native Resolution | 3840 x 2160 pixelsUltra HD (UHD) / 4K / 2160p |
| Pixel Density | 80 ppi |
| Pixel Pitch | 0.315 mm |
| HDCP Support | Yes |
◑
Luminance, Blacks & Contrast
8
| Specification | Value |
|---|---|
| Typical Brightness | 650 cd/m² |
| Peak Brightness | 2500 cd/m² |
| Static Contrast | 6000 : 1 |
| Static Contrast Ratio | 6000 : 1 |
| Dynamic Contrast Ratio | 25000000 : 1 |
| Viewing Angles | 178 ° / 178 ° |
| Horizontal Viewing Angle | 178 ° |
| Vertical Viewing Angle | 178 ° |
Color Reproduction & Calibration
2
| Specification | Value |
|---|---|
| DCI-P3 Coverage | 93 % |
| Wide Color Gamut | Yes |
RECOMMENDED VIEWING DISTANCE
55"
Viewing Distance = 1.5–2.5 × Screen Size
25° field of view — Comfortable, relaxed viewing.
HDR Formats & Tone Mapping
4
| Specification | Value |
|---|---|
| HDR Support |
|
| HDR Formats |
|
| IMAX Enhanced | Yes |
| Filmmaker Mode | Yes |
Motion Processing & Response
4
| Specification | Value |
|---|---|
| Native Refresh Rate | 48 Hz - 144 Hz |
| Maximum Refresh Rate | 48 Hz - 144 Hz |
| Motion Processing | AI MotionMasterMotion Estimation Motion Compensation (MEMC) |
| Motion Estimation | Yes |
Console, VRR & Game Tools
5
| Specification | Value |
|---|---|
| Variable Refresh Rate | Variable Refresh Rate (VRR) |
| Auto Low Latency Mode | Auto Low Latency Mode (ALLM) |
| High Frame Rate | Yes |
| AMD FreeSync | AMD FreeSync Premium Pro |
| Game Bar | AI Gaming with Game Bar |
Picture Intelligence & AI
3
| Specification | Value |
|---|---|
| AI Upscaling | Yes |
| Filmmaker Mode | Yes |
| Ambient Mode | Ambient Mode |
Broadcast Tuners & Reception
10
| Specification | Value |
|---|---|
| Built-In TV Tuner |
|
| Tuner Configuration |
|
| Analog Tuner | NTSC / PAL / SECAM |
| Digital Terrestrial Tuner | dvb-t |
| Digital Terrestrial Tuner 2 | dvb-t2 |
| Digital Cable Tuner | dvb-c |
| Digital Satellite Tuner | dvb-s |
| Digital Satellite Tuner 2 | dvb-s2 |
| Satellite Input | 1× F-type |
| Antenna RF Input | Yes |
Compute, Memory & Storage
7
| Specification | Value |
|---|---|
| Processor Brand Name | TSR AIPQ Processor |
| System on Chip | MediaTek 9655+ |
| SoC Model | MediaTek 9655+ |
| CPU Architecture | ARM Cortex-A73, 1800 MHz, Cores: 4 |
| CPU Cores | 4 |
| GPU | ARM Mali-G57 MC1 |
| RAM Capacity | 4 GB |
Smart Platform & System
2
| Specification | Value |
|---|---|
| Smart TV | Yes |
| Operating System | Google TV |
Streaming & Entertainment
1
| Specification | Value |
|---|---|
| Ambient Mode | Ambient Mode |
Voice Assistants & Search
1
| Specification | Value |
|---|---|
| Voice Control | Yes |
HDMI Signal Interface
10
| Specification | Value |
|---|---|
| Total HDMI Ports |
|
| HDMI 2.1 Ports |
|
| HDMI 2.0 Ports |
|
| HDMI CEC | Yes |
| Audio Return Channel | Yes |
| Enhanced Audio Return Channel | Yes |
| Auto Low Latency Mode | Auto Low Latency Mode (ALLM) |
| High Frame Rate | Yes |
| Variable Refresh Rate | Variable Refresh Rate (VRR) |
| HDCP Support | Yes |
Ports & Connections
USB, Audio & Legacy I/O
7
| Specification | Value |
|---|---|
| Total USB Ports |
|
| USB-A 3.0 Ports |
|
| Ethernet Port | 1× RJ45 |
| Optical Audio Output | 1× S/PDIF |
| Satellite Input | 1× F-type |
| Antenna Input | 1× RF |
| Common Interface Slot | 1× CI+ |
Wireless, LAN & Casting
10
| Specification | Value |
|---|---|
| LAN | Yes |
| Wi-Fi | Wi-Fi 8 |
| Wi-Fi Standards | 802.11a |
| Bluetooth | Bluetooth 5.4 |
| Wi-Fi Direct | Yes |
| DLNA | Yes |
| Apple AirPlay | Yes |
| Google Cast | Yes |
| Miracast | Yes |
| Multi-View | Yes |
Speaker Layout & Output
5
| Specification | Value |
|---|---|
| Built-In Speakers | Yes |
| Speaker Configuration | 2.0 CH |
| Speaker Channels | 2.0 CH |
| Total Audio Output | 20W |
| Total Speaker Output | 20W |
Sound Formats & Enhancement
3
| Specification | Value |
|---|---|
| Dolby Atmos | Yes |
| Dolby Digital | Yes |
| Dolby Digital Plus | Yes |
Camera & Video Calling
1
| Specification | Value |
|---|---|
| Built-In Camera | No |
Panel-Only Size & Mass
5
| Specification | Value |
|---|---|
| Dimensions Without Stand | 1228 mm x 710 mm x 39.9 mm (W x H x D) |
| Width Without Stand | 1228 mm |
| Height Without Stand | 710 mm |
| Depth Without Stand | 39.9 mm |
| Weight Without Stand | 13.4 kg |
Assembled TV Size & Mass
5
| Specification | Value |
|---|---|
| Dimensions With Stand | 1228 mm x 762 mm x 295 mm (W x H x D) |
| Width With Stand | 1228 mm |
| Height With Stand | 762 mm |
| Depth With Stand | 295 mm |
| Weight With Stand | 14.5 kg |
Shipping Carton Measurements
5
| Specification | Value |
|---|---|
| Box Dimensions | 1360 mm x 875 mm x 122 mm (W x H x D) |
| Box Width | 1360 mm |
| Box Height | 875 mm |
| Box Depth | 122 mm |
| Box Weight | 19.3 kg / 42.55 lbs |
Exterior Styling & Stand Footprint
2
| Specification | Value |
|---|---|
| Stand Width | 276 mm / 27.6 cm / 10.8661 in / 0.9055 ft |
| Chassis Color | Black |
Wall Mounting & Installation
9
| Specification | Value |
|---|---|
| VESA Mount | 400 x 400 mm |
| VESA Interface | 400 x 400 mm |
| VESA Size | 400 x 400 mm |
| Removable Stand | Yes |
| Height Adjustment | NoLandscape / portrait pivot: NoLeft / right swivel: NoForward / backward tilt: No |
| Swivel Adjustment | No |
| Tilt Adjustment | No |
| Pivot Adjustment | No |
| Portrait Mode | No |
Electrical Load & Efficiency
3
| Specification | Value |
|---|---|
| Power Input | 220 V - 240 V |
| AC Frequency | 50 Hz - 60 Hz |
| Standby Consumption | 0.5 W |
Environmental Operating Limits
4
| Specification | Value |
|---|---|
| Operating Temperature | 5 °C - 35 °C / 41 °F - 95 °F |
| Operating Humidity | 20 % - 80 % |
| Storage Temperature | -15 °C - 45 °C / 5 °F - 113 °F |
| Storage Humidity | 10 % - 90 % |
Picture Feature Inventory
2
| Specification | Value |
|---|---|
| Filmmaker Mode | Yes |
| IMAX Enhanced | Yes |
Gaming Validation & Compatibility
3
| Specification | Value |
|---|---|
| AMD FreeSync Certification | Yes |
| Game Bar | AI Gaming with Game Bar |
| ALLM | Auto Low Latency Mode (ALLM) |
Regulatory & Industry Approvals
3
| Specification | Value |
|---|---|
| CE | Yes |
| IMAX Enhanced | Yes |
| CI+ Certification | Yes (CI+ 1.4) |
In-the-Box Components
3
| Specification | Value |
|---|---|
| Remote Control | Voice remote control |
| Remote Voice Control | Yes |
| Screen Size | 54.6 in |
⚡
Estimated Running Cost
Based on this product's rated power draw, not an independent lab measurement — actual usage varies with settings and content.
Daily—
Monthly—
Annually—
Draws more power than 100% of the 447 comparable displays we track.
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