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tcl TCL 85Q51K – Full Specifications TV
RATED
Great
7.0/10

84.6″ TCL 85Q51K – Full Specifications

The TCL 85Q51K stretches the Q51K range to 84.6 inches, which is serious home-cinema territory at a more affordable level than premium rivals.

84.6″ · 1.778:1 / 16:9 · MODEL YEAR 2025
tcl●TV
Display
84.6 in, HVA, Direct LED, 4K
84.6
Refresh rate
50 Hz / 60 Hz
50 Hz
Dimensions
1890 mm (millimeters) x 1087 mm (millimeters) x 83.8 mm (millimeters) (W x H x D)
1890
Weight
26 kg (kilograms) / 57.32 lbs (pounds)
26 k
Processor
Realtek RTD2875P
2875

Overview

The TCL 85Q51K stretches the Q51K range to 84.6 inches, which is serious home-cinema territory at a more affordable level than premium rivals. The 4K HVA panel gives 52 ppi with a 10-bit (8-bit + FRC) signal and HDR10, HDR10+, HLG and Dolby Vision support, while two 15 W speakers with Dolby audio are built in. It weighs 26.5 kg, so wall mounting needs helpers.

  • 84.6-inch HVA panel, 4K UHD at 52 ppi (Q51K)
  • 10-bit (8-bit + FRC) signal
  • HDR10, HDR10+, HLG and Dolby Vision support
  • 2 × 15 W speakers with Dolby audio
  • 26.5 kg, 2025 model

Pros & Cons

Pros
  • Cinema-sized screen at a value tier
  • Dolby Vision plus HDR10+ for streaming
  • 30 W Dolby-tuned audio is decent for the class
  • Lighter than many 85-inch sets at 26.5 kg
  • Fills the field of view from the sofa
Cons
  • 26.5 kg usually needs two people to mount
  • 52 ppi suits distant seating only
  • 60 Hz limit is a step behind 120 Hz and faster sets for gaming
  • Only 3 HDMI ports for consoles, a soundbar and a streamer

Score & Ratings

7.0/10 Great
Design
8
Display
7
Color
7
Performance
6
Connectivity
7
Television Identity & Market 13
Specification Value
Brand TCL
Series Q51K
Model 85Q51K
Model Alias 85Q5K
Full Product Name TCL 85Q51K
Model Year 2025
TV Category Entry QLED Tier
Market Position Entry-Level QLED, Retail-Exclusive
Primary Use Budget-Focused Everyday Entertainment
Region / Variant Not specified
Launch Status 2025 model year
Available Colors Black
Warranty 1 year limited warranty (North America)
Screen Geometry & Format 7
Specification Value
Screen Size 84.6 in
Exact Diagonal 2147.83 mm / 214.783 cm / 84.5602 in / 7.0467 ft
Aspect Ratio 1.778:1 / 16:9
Active Display Width 1872 mm / 187.2 cm / 73.7008 in / 6.1417 ft
Active Display Height 1053 mm / 105.3 cm / 41.4567 in / 3.4547 ft
Screen-to-Body Ratio 95.95 %
3D Support No

84.6" Display Size (214.9 cm) 16:9

214.9cm 84.6" 187.2 cm / 73.7" 189 cm / 74.4" (overall unit) 105.3 cm 41.5" 108.7 cm 42.8" (overall)

Resolution at a Glance

3840×2160 This screen 8K — 7,680×4,320 4K — 3,840×2,160 FHD — 1,920×1,080 HD — 1,280×720 8.3 MP — 4× the pixels of Full HD
Panel Architecture & Light Control 8
Specification Value
Panel Manufacturer CSOT
Panel Type HVA
Panel Technology VA
Quantum Dot Yes
Backlight Type Direct LED
Panel Bit Depth 10 bits (8 bits + FRC)
FRC Yes
Display Colors 1073741824 colors / 30 bits
Resolution, Scaling & Signal 3
Specification Value
Native Resolution 3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p
Pixel Density 52 ppi / 20 ppcm
Pixel Pitch 0.488 mm / 0.0488 cm / 0.0192 in / 0.0016 ft
◑ Luminance, Blacks & Contrast 3
Specification Value
Viewing Angles 178 ° / 178 ° / Colorful Quantum Crystals / High Brightness LED Backlight
Horizontal Viewing Angle 178 °
Vertical Viewing Angle 178 ° / Colorful Quantum Crystals / High Brightness LED Backlight
Color Reproduction & Calibration 1
Specification Value
Wide Color Gamut Yes
RECOMMENDED VIEWING DISTANCE 85"
Viewing Distance = 1.5–2.5 × Screen Size
85" Centre screen at eye level (~42") 85" TV → 10.6–17.6 ft viewing distance

25° field of view — Comfortable, relaxed viewing.

HDR Formats & Tone Mapping 6
Specification Value
HDR Support
  • Dolby Vision
  • HDR10+
  • HDR10
  • HLG
HDR Formats
  • Dolby Vision
  • HDR10+
  • HDR10
  • HLG
HDR10 Yes
HDR10+ Yes
Dolby Vision Yes
HLG Yes
Motion Processing & Response 5
Specification Value
Native Refresh Rate 50 Hz / 60 Hz
Maximum Refresh Rate 60 Hz
Frame Interpolation Motion Rate (240)
Interpolation Technology Motion Rate
Interpolation Value 240
Console, VRR & Game Tools 1
Specification Value
Auto Low Latency Mode Yes
Broadcast Tuners & Reception 4
Specification Value
Built-In TV Tuner
  • Yes
Tuner Configuration Analog (NTSC / PAL / SECAM), ATSC, Clear QAM
North American Digital Tuner ATSC
Clear QAM Clear QAM
Compute, Memory & Storage 5
Specification Value
System on Chip Realtek RTD2875P
SoC Model Realtek RTD2875P
CPU Cores 4
RAM Capacity 2 GB
Internal Storage 16 GB / eMMC 5.1
Smart Platform & System 2
Specification Value
Smart TV Yes
Operating System Google TV
Streaming & Entertainment 3
Specification Value
Netflix Yes
Prime Video Yes
Disney+ Yes
Voice Assistants & Search 3
Specification Value
Voice Control Yes
Amazon Alexa Yes
Google Assistant Yes
HDMI Signal Interface 4
Specification Value
Total HDMI Ports
  • 3
HDMI 2.0 Ports
  • 3
HDMI CEC Yes
Enhanced Audio Return Channel Yes

Ports & Connections

HDMI3USB-AEtherneteARCOptical AudioAntenna / RF
USB, Audio & Legacy I/O 4
Specification Value
Total USB Ports
  • 1
Ethernet Port Yes
Optical Audio Output Optical
Antenna Input Yes
Wireless, LAN & Casting 9
Specification Value
LAN Yes
Wi-Fi Yes
Wi-Fi Standards 802.11a, 802.11ac, 802.11b, 802.11g, 802.11n
Bluetooth Yes
Apple AirPlay Yes
Apple HomeKit Yes
Chromecast Yes
Google Cast Yes
Miracast Yes
Speaker Layout & Output 3
Specification Value
Built-In Speakers 2 x 15 W / 2.0 CH / 30 W / Dolby Atmos / DTS: X / DTS Virtual: X
Speaker Configuration 2.0 CH
Total Audio Output 30 W
Sound Formats & Enhancement 2
Specification Value
Dolby Atmos Yes
DTS:X Yes
Camera & Video Calling 1
Specification Value
Built-In Camera No
Panel-Only Size & Mass 5
Specification Value
Dimensions Without Stand 1890 mm x 1087 mm x 83.8 mm (W x H x D)
Width Without Stand 1890 mm
Height Without Stand 1087 mm
Depth Without Stand 83.8 mm
Weight Without Stand 26 kg / 57.32 lbs
Assembled TV Size & Mass 5
Specification Value
Dimensions With Stand 1890 mm x 1166 mm x 406 mm (W x H x D)
Width With Stand 1890 mm
Height With Stand 1166 mm
Depth With Stand 406 mm
Weight With Stand 26.5 kg / 58.42 lbs
Shipping Carton Measurements 5
Specification Value
Box Dimensions 2045 mm x 1200 mm x 197 mm (W x H x D)
Box Width 2045 mm
Box Height 1200 mm
Box Depth 197 mm
Box Weight 38 kg / 83.78 lbs
Exterior Styling & Stand Footprint 2
Specification Value
Stand Width 1735 mm / 173.5 cm / 68.3071 in / 5.6923 ft
Chassis Color Black
Wall Mounting & Installation 8
Specification Value
VESA Mount 600 x 300 mm
VESA Interface 600 x 300 mm
VESA Size 600 x 300 mm
Removable Stand Yes
Height Adjustment No
Swivel Adjustment No
Tilt Adjustment No
Portrait Mode No
Electrical Load & Efficiency 4
Specification Value
Power Input 110 V - 120 V / 220 V - 240 V
AC Frequency 50 Hz - 60 Hz
Standby Consumption 0.5 W
Annual Energy Consumption 437 kWh
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 % - 70 %
Picture Feature Inventory 2
Specification Value
Quantum Dot Color Yes
Wide Color Gamut Yes
Gaming Validation & Compatibility 1
Specification Value
ALLM Yes
In-the-Box Components 3
Specification Value
Remote Control Voice remote control
Remote Type Voice remote control
Remote Voice Control Yes
⚡

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 88% of the 447 comparable displays we track.

Reviews

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DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT SHEET № 85Q51K