TCL 75Q51K 75"

Manufacturer: TCL

The TCL 75Q51K 75″ is a large-screen QLED TV designed to deliver impressive visuals with its 4K resolution and advanced display technologies. With a screen size of 74.5″, this model supports HDR10+, Dolby Vision, and an anti-reflection coating for enhanced picture quality in various lighting conditions.

On the technical side, the TCL 75Q51K features a 60Hz refresh rate and offers a wide viewing angle of 178º both horizontally and vertically. It also includes built-in Bluetooth, Wi-Fi 4 and 5 support, and multiple HDMI 2.0 ports for seamless connectivity. The TV is equipped with Dolby Atmos and DTS:X for immersive sound and supports smart features like Chromecast and voice commands with Google Assistant and Alexa.

Pros

Supports multiple HDR formats, including HDR10+, Dolby Vision, and HLG for improved picture quality.
Equipped with built-in smart TV features, enabling access to streaming apps and content directly on the TV.
Offers seamless voice control with compatibility for Google Assistant and Alexa.
Includes Chromecast and AirPlay for easy streaming from mobile devices.
Wide viewing angles (178º horizontal and vertical) maintain consistent picture quality from different positions.

Cons

Lacks a subwoofer, which may impact the depth and richness of sound.
Does not support compatibility with Siri or Apple HomeKit.
No 3.5 mm audio jack or external memory slot for additional connectivity or storage options.
Does not include a rechargeable remote, requiring manual battery replacements.

Who is this for?

The TCL 75Q51K is ideal for users who want a large-screen 4K display with advanced HDR support, including HDR10+, Dolby Vision, and HLG, making it suitable for enjoying high-quality video content. With its wide viewing angles of 178º horizontally and vertically, it is well-suited for group viewing or rooms where the seating arrangement may vary. The built-in smart TV features, Chromecast, and AirPlay compatibility make it an excellent choice for those who stream content from mobile devices or use voice assistants like Google Assistant or Alexa.

Who is this NOT for?

This TV may not be the best choice for users seeking deep, rich sound, as it lacks a subwoofer, which could limit the overall audio experience. Additionally, the absence of a 3.5 mm audio jack and external memory slot could be a limitation for those who want more connectivity options. Users who rely on Siri or Apple HomeKit for voice control will also find this model incompatible with those systems, as it does not support them.

Display:

display resolution	4K (UHD)
Display type	QLED, LED-backlit, LCD
screen size	74.5"
resolution	3840 x 2160 px
pixel density	59 ppi
display colors	1070 million
bit depth	10-bit
refresh rate	60Hz
supports HDR10	✓
supports HDR10+	✓
supports Dolby Vision	✓
supports HLG	✓
Adaptive synchronization	None
has anti-reflection coating	✓
has an ambient light sensor	✓
maximum horizontal viewing angle	178º
maximum vertical viewing angle	178º

The TCL 75Q51K features a 74.5″ screen with a 4K UHD resolution (3840 x 2160 px), delivering vibrant visuals with its QLED, LED-backlit, and LCD display technologies. The TV supports advanced HDR formats, including HDR10+ and Dolby Vision, ensuring high dynamic range content looks stunning. With a wide viewing angle of 178º both horizontally and vertically, the display maintains its clarity and color even from extreme angles. It also includes features like an ambient light sensor and anti-reflection coating to enhance the viewing experience in various lighting conditions.

Connectivity:

Has Bluetooth	✓
HDMI version	HDMI 2.0
HDMI ports	3
supports Wi-Fi	✓
Wi-Fi version	Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
USB ports	1
RJ45 ports	1
supports Miracast	✓
has a socket for a 3.5 mm audio jack	✕
has an external memory slot	✕
has a VGA connector	✕
has a DVI connector	✕

The TCL 75Q51K offers a variety of connectivity options, including 3 HDMI 2.0 ports and Wi-Fi support (Wi-Fi 4 and 5), allowing easy connection to external devices and networks. It also features Bluetooth, Miracast support, and a single USB port for additional peripherals. For wired connections, there is one RJ45 port. However, it does not include a 3.5 mm audio jack, external memory slot, or VGA/DVI connectors.

Audio:

supports Dolby Digital	✓
audio output power	2 x 15W
supports Digital Out	✓
supports Dolby Digital Plus	✓
has SRS TheaterSound HD	✕
has stereo speakers	✓
has Dolby Atmos	✓
has Dolby Audio	✓
supports Dolby Virtual	✕
has a subwoofer	✕
has DTS:X	✓
HDMI ARC / eARC	HDMI ARC, HDMI eARC

The TCL 75Q51K provides a rich audio experience with Dolby Atmos and DTS:X support for immersive sound. It includes stereo speakers with a total output power of 2 x 15W and supports Dolby Digital and Dolby Digital Plus for enhanced audio quality. Additionally, it features Digital Out and HDMI ARC/eARC for flexible audio output, though it does not include a subwoofer or SRS TheaterSound HD.

Design:

width	1666.2 mm
weight	18198 g
thickness	73.7 mm
height	960.1 mm
volume	117899.262294 cm³
Supports VESA mount	✓
maximum operating temperature	35 °C
lowest potential operating temperature	5 °C

The TCL 75Q51K has a large and robust design with a width of 1666.2 mm and a thickness of 73.7 mm. Weighing 18198 g, it offers a substantial presence, and its total volume is 117899.26 cm³. This TV supports VESA mounting for flexible installation options and operates within a temperature range of 5°C to 35°C, ensuring stable performance in typical environments.

Features:

release date	April 2025
has Chromecast built-in	✓
has AirPlay	✓
has built-in smart TV	✓
compatible with Google Assistant	✓
works with Alexa	✓
works with Siri/Apple HomeKit	✕
supports a remote smartphone	✓
has a rechargeable remote control	✕
supports USB recording	✓
standby power consumption	0.5W
has a search browser	✓
has a sleep timer	✓
has a child lock	✓
warranty period	1 years
has voice commands	✓

The TCL 75Q51K comes with several smart features, including Chromecast and AirPlay built-in for easy content streaming. It also has a built-in smart TV platform, voice command functionality, and compatibility with both Google Assistant and Alexa for seamless voice control. Additionally, the TV supports USB recording, a search browser, a sleep timer, and a child lock for added convenience and security.

Final Verdict

The TCL 75Q51K is a solid choice for those seeking a large-screen 4K TV with advanced HDR capabilities, including HDR10+ and Dolby Vision, ideal for high-quality video streaming and immersive viewing experiences. Its built-in smart TV features, Chromecast, and voice assistant compatibility enhance its overall convenience. While it may not meet the needs of users who prioritize deep sound quality or those reliant on Apple’s ecosystem, it remains a well-rounded option for those focused on superior display and smart functionality.