TCL vs TCL 65-Inch Class S5 UHD 4K LED Smart TV with Fire
Updated August 2026 — TCL leads on picture quality and audio quality.
The TCL 55 Inch Class QM6K Series offers superior display technology and audio performance, while the TCL 65-Inch Class S5 provides a larger screen at a lower price. Choose based on your priorities.
Why TCL is better
Display Technology
QM6K features advanced QD-Mini LED technology.
Refresh Rate
QM6K has a higher 144Hz refresh rate.
Audio Performance
QM6K includes a dedicated Onkyo sound system.
Why TCL 65-Inch Class S5 UHD 4K LED Smart TV with Fire is better
Price
S5 is $38 cheaper.
Screen Size
S5 offers a larger 65-inch display.
Smart Features
S5 has integrated Fire TV for easy access to content.
Overall score
Specifications
| Spec | TCL | TCL 65-Inch Class S5 UHD 4K LED Smart TV with Fire |
|---|---|---|
| Display Type | QD-Mini LED | LED |
| HDR Support | Dolby Vision, HDR10+ | Dolby Vision, HDR PRO+ |
| Game Mode | Game Accelerator 288 | Game Accelerator 120 |
| Voice Control | Google Assistant | Alexa |
| Audio System | Onkyo with Dolby Atmos | Dolby Atmos |
Dimension comparison
Price Comparison
When it comes to price, the TCL 65-Inch Class S5 UHD 4K LED Smart TV with Fire TV is about 9% cheaper than the TCL 55 Inch Class QM6K Series, with the former priced at $409.99 and the latter at $447.99. This price difference of $38 may appeal to budget-conscious consumers looking for a larger screen without sacrificing quality. Both models are positioned as affordable options within their respective series, but the S5's lower price tag could make it a more attractive choice for those prioritizing value.
Display Technology
The TCL 55 Inch Class QM6K Series features advanced QD-Mini LED technology, offering breathtaking brightness and color accuracy, making it particularly effective for sports and gaming. In contrast, the TCL 65-Inch Class S5 uses a traditional LED backlight but still delivers impressive 4K UltraHD resolution with enhanced color. The QM6K's superior contrast and local dimming capabilities provide a more dynamic viewing experience, particularly in darker scenes. Thus, while both TVs promise excellent picture quality, the QM6K is engineered for high-performance viewing.
Size and Design
The TCL 65-Inch Class S5 provides a larger screen, making it ideal for spacious living rooms or for those who enjoy a cinematic experience at home. The S5's design features a sleek, edge-to-edge bezel-less look, which is visually appealing and contributes to an immersive viewing experience. Meanwhile, the TCL 55 Inch Class QM6K, although smaller, is designed to fit well in more compact spaces while still delivering high-end performance. For consumers with size constraints, the QM6K may be the better option, while those seeking a more expansive display will lean towards the S5.
Gaming Features
Gaming enthusiasts may find the TCL 55 Inch Class QM6K Series more appealing due to its 144Hz native refresh rate, which ensures smooth and fluid gameplay, particularly during fast-paced action. The QM6K also incorporates TCL's Game Accelerator technology, designed to reduce input lag, making it excellent for competitive gaming. The TCL 65-Inch Class S5, while not as high in refresh rate at 120Hz, still offers a Game Accelerator feature and Auto Game Mode for optimizing gaming performance. Thus, serious gamers may prefer the QM6K for its advanced specs.
Smart Features
In terms of smart features, the TCL 65-Inch Class S5 with Fire TV provides an integrated platform that grants access to over one million movies and TV episodes, making it highly convenient for streaming. It also includes built-in Alexa for voice commands and control. On the other hand, the TCL 55 Inch Class QM6K operates on Google TV with features like voice remote and a comprehensive app ecosystem. While both TVs are smart and user-friendly, the choice may come down to whether you prefer the Fire TV interface or Google TV's offerings.
Audio Performance
The audio quality of the TCL 55 Inch Class QM6K is enhanced by its Onkyo sound system, featuring Dolby Atmos and DTS Virtual:X technologies, which provide an immersive audio experience. The S5 also supports Dolby Atmos and DTS Virtual:X, but some users may find the dedicated subwoofer in the QM6K gives it an edge in delivering rich, spatial sound. Both models prioritize audio quality, but serious movie watchers and gamers may prefer the more robust sound capabilities of the QM6K.
Brand Reputation and Sales Rank
Both products are from TCL, a brand known for its innovative technology and value proposition in the TV market. The TCL 55 Inch Class QM6K is ranked 1200 in sales, indicating strong market performance, while the TCL 65-Inch Class S5 holds a slightly lower rank at 3187. This difference suggests that the QM6K is currently more popular among consumers, possibly due to its advanced features and performance enhancements.
Which should you buy?
Deciding between the TCL 55 Inch Class QM6K Series and the TCL 65-Inch Class S5 UHD 4K LED Smart TV ultimately boils down to your specific needs and preferences. If you prioritize advanced display technology, superior motion handling, and immersive audio, the QM6K is the clear winner. However, if a larger screen and a slightly lower price are more appealing, the S5 offers exceptional value as well. Both models deliver excellent 4K performance and smart features, making them worthy contenders in the market.

