TV COMPARISON · UPDATED OCTOBER 2026
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TCL 55C6K Pro vs TCL 55A400U Comparison
TCL 55C6K Pro vs TCL 55A400U compares two TVs with different strengths for picture quality, motion, and everyday use. TCL 55C6K Pro is specified with 54.6 in / HVA / 4K / Mini LED, while TCL 55A400U uses 54.6 in / HVA / 4K / Mini LED. Both are listed at 48 Hz – 144 Hz refresh. Both list 93 % DCI-P3 coverage. The better choice depends on which of those differences matters most in your setup.
VA 144Hz
tcl
8.2
/10
48 Hz - 144 HzNative Refresh Rate
Auto Low Latency…ALLM
AMD FreeSync…AMD FreeSync
HVAPanel Type
VA 144Hz
tcl
8.4
/10
48 Hz - 144 HzNative Refresh Rate
Auto Low Latency…ALLM
AMD FreeSync…AMD FreeSync
HVAPanel Type
Overview
Of these two 54.6-inch Mini LED sets, the TCL 55A400U is the design-led model, and the TCL 55C6K Pro vs TCL 55A400U choice is about looks and brightness rather than gaming features. Both run 3840 × 2160 HVA panels at 80 ppi with 48-144 Hz, VRR, FreeSync Premium Pro, 93 percent DCI-P3, two HDMI 2.1 ports and one USB port. The 55A400U lists 2,500 cd/m² peak, a matte anti-glare coating, a MediaTek 9655+ processor and 39.9 mm depth, but needs 400 × 400 mm VESA and weighs 13.4 kg bare. The 55C6K Pro is lighter at 12.8 kg, mounts on 300 × 300 mm and draws 64 W typically.
Full Specification Comparison
| Specification | ||
|---|---|---|
| TV Overview | ||
| Rating | 8.2 / 10 | 8.4 / 10 |
| Brand | tcl | tcl |
| Category | TV | TV |
| Television Identity & Market | ||
| Brand | TCL | TCL |
| Series | C6K Pro | A400U |
| Model | 55C6K Pro | 55A400U |
| Model Alias | -- | 55" TCL A400U Premium Wallpaper QD-Mini LED TV |
| Full Product Name | TCL 55C6K Pro | TCL 55A400U |
| Model Year | 2026 | 2026 |
| TV Category | Mid-Premium Tier | Premium Design-Focused Tier |
| Market Position | Mid-Premium QD-Mini LED | Designer Series QD-Mini LED |
| Primary Use | Home Entertainment & Everyday HDR Viewing | Design-Conscious Premium Home Entertainment |
| Region / Variant | Not specified | Not specified |
| Launch Status | 2026 model year | 2026 model year |
| Available Colors | Black | Black |
| Warranty | 1 year limited warranty | 1 year limited warranty |
| Screen Geometry & Format | ||
| Screen Size | 54.6 in | 54.6 in |
| Marketed Screen Size | 54.6 in | 54.6 in |
| Exact Diagonal | 1388 mm / 138.8 cm / 54.6457 in / 4.5538 ft | 1388 mm / 138.8 cm / 54.6457 in / 4.5538 ft |
| Aspect Ratio | 1.778:1 16:9 | 1.778:1 16:9 |
| Active Display Width | 1209.6 mm / 120.96 cm / 47.622 in / 3.9685 ft | 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 | 680.4 mm / 68.04 cm / 26.7874 in / 2.2323 ft |
| Screen-to-Body Ratio | 94.4 % | 94.4 % |
| 3D Support | No | No |
| Panel Architecture & Light Control | ||
| Panel Manufacturer | CSOT | CSOT |
| Panel Type? | HVA | HVA |
| Panel Technology | VA | VA |
| Quantum Dot | Yes | Yes |
| Backlight Type? | Mini LED | Mini LED |
| Panel Bit Depth | 10 bits (8 bits + FRC) | 10 bits |
| FRC | Yes | -- |
| Display Colors | 1073741824 colors30 bits | 1073741824 colors30 bits |
| Surface Treatment & Viewing Layer | ||
| Screen Coating | Anti-glare / Matte | Anti-glare / Matte |
| Resolution, Scaling & Signal | ||
| Native Resolution | 3840 x 2160 pixels Ultra HD (UHD) / 4K / 2160p | 3840 x 2160 pixels Ultra HD (UHD) / 4K / 2160p |
| Pixel Density | 80 ppi | 80 ppi |
| Pixel Pitch | 0.315 mm | 0.315 mm |
| HDCP Support | Yes | Yes |
| Luminance, Blacks & Contrast | ||
| Typical Brightness | -- | 650 cd/m² |
| Peak Brightness | -- | 2500 cd/m² |
| Static Contrast | 6000 : 1 | 6000 : 1 |
| Static Contrast Ratio | 6000 : 1 | 6000 : 1 |
| Dynamic Contrast Ratio | -- | 25000000 : 1 |
| Viewing Angles | 178 ° / 178 ° | 178 ° / 178 ° |
| Horizontal Viewing Angle | 178 ° | 178 ° |
| Vertical Viewing Angle | 178 ° | 178 ° |
| Color Reproduction & Calibration | ||
| DCI-P3 Coverage | 93 % | 93 % |
| Wide Color Gamut | Yes | Yes |
| HDR Formats & Tone Mapping | ||
| HDR Support? |
|
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| HDR Formats? |
|
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| IMAX Enhanced | Yes | Yes |
| Filmmaker Mode | Yes | Yes |
| Motion Processing & Response | ||
| Native Refresh Rate | 48 Hz - 144 Hz | 48 Hz - 144 Hz |
| Maximum Refresh Rate | 48 Hz - 144 Hz | 48 Hz - 144 Hz |
| Motion Processing | AI Motion MEMC (Motion Estimation Motion Compensation) | AI Motion Master Motion Estimation Motion Compensation (MEMC) |
| Motion Estimation | Yes | Yes |
| Console, VRR & Game Tools | ||
| Variable Refresh Rate | Variable Refresh Rate (VRR) | Variable Refresh Rate (VRR) |
| Auto Low Latency Mode | Auto Low Latency Mode (ALLM) | Auto Low Latency Mode (ALLM) |
| High Frame Rate | Yes | Yes |
| AMD FreeSync? | AMD FreeSync Premium Pro | AMD FreeSync Premium Pro |
| Game Bar | Game Master with Game Bar | AI Gaming with Game Bar |
| Picture Intelligence & AI | ||
| AI Upscaling | Yes | Yes |
| Filmmaker Mode | Yes | Yes |
| Ambient Mode | Yes | Ambient Mode |
| Broadcast Tuners & Reception | ||
| Built-In TV Tuner | Yes | Yes |
| Tuner Configuration | Analog (NTSC / PAL / SECAM) DVB-T DVB-T2 DVB-C DVB-S DVB-S2 | Analog (NTSC / PAL / SECAM) DVB-T DVB-T2 DVB-C DVB-S DVB-S2 |
| Analog Tuner | NTSC / PAL / SECAM | NTSC / PAL / SECAM |
| Digital Terrestrial Tuner | dvb-t | dvb-t |
| Digital Terrestrial Tuner 2 | dvb-t2 | dvb-t2 |
| Digital Cable Tuner | dvb-c | dvb-c |
| Digital Satellite Tuner | dvb-s | dvb-s |
| Digital Satellite Tuner 2 | dvb-s2 | dvb-s2 |
| Satellite Input | 1× F-type | 1× F-type |
| Antenna RF Input | Yes | Yes |
| Compute, Memory & Storage | ||
| Processor Brand Name | AIPQ Processor | TSR AIPQ Processor |
| System on Chip | -- | Media Tek 9655+ |
| SoC Model | AIPQ Processor | Media Tek 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 | ||
| Smart TV | Yes | Yes |
| Operating System | Google TV | Google TV |
| Streaming & Entertainment | ||
| Netflix | Yes | -- |
| Prime Video | Yes | -- |
| Disney+ | Yes | -- |
| Apple TV+ | Yes | -- |
| Ambient Mode | -- | Ambient Mode |
| Voice Assistants & Search | ||
| Voice Control | Yes | Yes |
| Google Assistant | Yes | -- |
| HDMI Signal Interface | ||
| Total HDMI Ports | 4 | 4 |
| HDMI 2.1 Ports |
|
|
| HDMI 2.0 Ports |
|
|
| HDMI CEC | Yes | Yes |
| Audio Return Channel | Yes | Yes |
| Enhanced Audio Return Channel | Yes | Yes |
| Auto Low Latency Mode | Auto Low Latency Mode (ALLM) | Auto Low Latency Mode (ALLM) |
| High Frame Rate | Yes | Yes |
| Variable Refresh Rate | Variable Refresh Rate (VRR) | Variable Refresh Rate (VRR) |
| HDCP Support | Yes | Yes |
| USB, Audio & Legacy I/O | ||
| Total USB Ports | 1 | 1 |
| USB-A 3.0 Ports |
|
|
| Ethernet Port | 1× RJ45 | 1× RJ45 |
| Optical Audio Output | 1× S/PDIF | 1× S/PDIF |
| Satellite Input | 1× F-type | 1× F-type |
| Antenna Input | 1× RF | 1× RF |
| Common Interface Slot | 1× CI+ | 1× CI+ |
| Wireless, LAN & Casting | ||
| LAN | Yes | Yes |
| Wi-Fi | Wi-Fi 8 | Wi-Fi 8 |
| Wi-Fi Standards | 802.11a | 802.11a |
| Bluetooth | Bluetooth 5.4 | Bluetooth 5.4 |
| Wi-Fi Direct | Yes | Yes |
| DLNA | Yes | Yes |
| Apple AirPlay | Yes | Yes |
| Apple HomeKit | Yes | -- |
| Chromecast | Yes | -- |
| Google Cast | Yes | Yes |
| Miracast | Yes | Yes |
| Multi-View | -- | Yes |
| Speaker Layout & Output | ||
| Built-In Speakers | 2 x 10 W | Yes |
| Speaker Configuration | -- | 2.0 CH |
| Speaker Channels | -- | 2.0 CH |
| Built-In Subwoofer | 1 x 20 W | -- |
| Total Audio Output | -- | 20W |
| Total Speaker Output | -- | 20W |
| Sound Formats & Enhancement | ||
| Dolby Atmos | Yes | Yes |
| Dolby Digital | -- | Yes |
| Dolby Digital Plus | -- | Yes |
| DTS Virtual:X | DTS Virtual:X | -- |
| Camera & Video Calling | ||
| Built-In Camera | No | No |
| Connected Home & IoT | ||
| Apple HomeKit | Yes | -- |
| Panel-Only Size & Mass | ||
| Dimensions Without Stand | 1228 mm x 710 mm x 56 mm (W x H x D) | 1228 mm x 710 mm x 39.9 mm (W x H x D) |
| Width Without Stand | 1228 mm | 1228 mm |
| Height Without Stand | 710 mm | 710 mm |
| Depth Without Stand | 56 mm | 39.9 mm |
| Weight Without Stand | 12.8 kg | 13.4 kg |
| Assembled TV Size & Mass | ||
| Dimensions With Stand | 1228 mm x 760 mm x 270 mm (W x H x D) | 1228 mm x 762 mm x 295 mm (W x H x D) |
| Width With Stand | 1228 mm | 1228 mm |
| Height With Stand | 760 mm | 762 mm |
| Depth With Stand | 270 mm | 295 mm |
| Weight With Stand | 14 kg | 14.5 kg |
| Shipping Carton Measurements | ||
| Box Dimensions | 1400 mm x 875 mm x 150 mm (W x H x D) | 1360 mm x 875 mm x 122 mm (W x H x D) |
| Box Width | 1400 mm | 1360 mm |
| Box Height | 875 mm | 875 mm |
| Box Depth | 150 mm | 122 mm |
| Box Weight | 18 kg / 39.68 lbs | 19.3 kg / 42.55 lbs |
| Exterior Styling & Stand Footprint | ||
| Stand Width | 295 mm / 29.5 cm / 11.6142 in / 0.9678 ft | 276 mm / 27.6 cm / 10.8661 in / 0.9055 ft |
| Chassis Color | Black | Black |
| Wall Mounting & Installation | ||
| VESA Mount | 300 x 300 mm | 400 x 400 mm |
| VESA Interface | 300 x 300 mm | 400 x 400 mm |
| VESA Size | 300 x 300 mm | 400 x 400 mm |
| Removable Stand | Yes | Yes |
| Height Adjustment | Yes Landscape / portrait pivot: No Left / right swivel: No Forward / backward tilt: No | No Landscape / portrait pivot: No Left / right swivel: No Forward / backward tilt: No |
| Swivel Adjustment | No | No |
| Tilt Adjustment | No | No |
| Pivot Adjustment | No | No |
| Portrait Mode | No | No |
| Electrical Load & Efficiency | ||
| Power Input | 100 V - 120 V / 220 V - 240 V | 220 V - 240 V |
| AC Frequency | 50 Hz - 60 Hz | 50 Hz - 60 Hz |
| Typical Power Consumption | 64 W | -- |
| Maximum Power Consumption | 150 W | -- |
| Standby Consumption | 0.5 W | 0.5 W |
| Energy Efficiency Class | E | -- |
| Environmental Operating Limits | ||
| Operating Temperature | 5 °C - 35 °C / 41 °F - 95 °F | 5 °C - 35 °C / 41 °F - 95 °F |
| Operating Humidity | 20 % - 80 % | 20 % - 80 % |
| Storage Temperature | -15 °C - 45 °C / 5 °F - 113 °F | -15 °C - 45 °C / 5 °F - 113 °F |
| Storage Humidity | 10 % - 90 % | 10 % - 90 % |
| Picture Feature Inventory | ||
| Filmmaker Mode | Yes | Yes |
| IMAX Enhanced | Yes | Yes |
| Gaming Validation & Compatibility | ||
| AMD FreeSync Certification? | Yes | Yes |
| Game Bar | Game Master with Game Bar | AI Gaming with Game Bar |
| ALLM | Auto Low Latency Mode (ALLM) | Auto Low Latency Mode (ALLM) |
| Regulatory & Industry Approvals | ||
| CE | Yes | Yes |
| IMAX Enhanced | Yes | Yes |
| CI+ Certification | Yes (CI+ 1.4) | Yes (CI+ 1.4) |
| In-the-Box Components | ||
| Remote Control | Backlit voice remote control | Voice remote control |
| Remote Voice Control | Yes | Yes |
| Screen Size | 54.6 in | 54.6 in |
Verdict
Bottom line
Grab the 55A400U for peak brightness, with 2,500 nits and a slim 39.9 mm body. The 55C6K Pro is the more practical choice for small desks, with a 12.8 kg panel and a smaller 300 x 300 mm VESA pattern. The deciding factor is HDR brightness against weight.
Buy this ifTCL 55C6K Pro
- 12.8 kg panel is lighter to mount
- Smaller 300 x 300 mm VESA pattern
- Typical draw of only 64 W
Buy this ifTCL 55A400U
- 2,500 nits peak brightness for HDR
- 39.9 mm body sits slim on the wall
- Display rating of 10 with matte coating
| Use case | Better pick | Why |
|---|---|---|
| Movies & HDR | TCL 55A400U | 2,500 nits peak brightness |
| Wall-mounted look | TCL 55A400U | 39.9 mm thin body |
| Small desks | TCL 55C6K Pro | 12.8 kg panel versus 13.4 kg |
| Easy mounting | TCL 55C6K Pro | 300 x 300 mm VESA versus 400 x 400 |
| Console gaming | Tie | Two HDMI 2.1 and 144 Hz on both |
| Accessories & drives | Tie | Both fit only one USB port |
Data & scoring note
Methodology: The verdict and comparison notes on this page were written and checked by an editor working from the full specification table below. Conclusions are based on manufacturer-listed specifications only - no benchmark testing, measured brightness or hands-on use is claimed unless stated. Missing values are left blank rather than estimated. Report an error.
Updated: October 2026
Editorial
Display Input -- Monitor & TV Comparison Database
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