TCL Q7 55" (QLED) vs TCL S4 55"

The Verdict

Both TCL models deliver 4K resolution and Google TV on a 55-inch screen, but they diverge significantly in performance and features. The Q7 uses QLED technology with full array local dimming, achieving 1000 nits peak brightness compared to the S4's 400 nits LED panel. This translates to substantially better contrast, color accuracy, and HDR performance on the Q7. Gaming capabilities heavily favor the Q7: it supports 120Hz refresh rate with 7ms input lag and VRR/ALLM, while the S4 maxes out at 60Hz with 30ms lag and no gaming optimizations. Audio is another differentiator, with the Q7's 30W system including Dolby Atmos versus the S4's basic 15W output. The Q7 includes Wi-Fi 6 and 4 HDMI ports for future flexibility, whereas the S4 has Wi-Fi 5 and 3 HDMI ports. Build quality favors the S4 slightly at 28.7 lbs versus 31.3 lbs. At nearly double the price (550 dollars versus 279 dollars), the Q7 justifies its cost through superior picture quality, gaming performance, and audio capabilities. The S4 serves budget-conscious buyers well for casual viewing and basic smart TV features, but serious gamers and home theater enthusiasts should choose the Q7.