Both TVs share the same 4K (3840 x 2160) resolution, 10-bit panel depth, and 1.07 billion color output, so the baseline image fidelity is identical on paper. The key panel-level difference, however, is fundamental: the Xiaomi TV A 2026 65″ uses a standard LED-backlit LCD, while the Xiaomi TV S Pro Mini LED 2026 75″ employs a QLED Mini-LED stack. Mini-LED technology uses thousands of smaller, more tightly controlled backlighting zones, which translates to significantly better local dimming, deeper blacks, and higher peak brightness — advantages that are clearly visible in dark-room or HDR content. QLED's quantum dot layer further widens the color volume, making saturated colors appear more vivid and accurate than a conventional LCD backlight can achieve.
The motion handling gap is equally significant. The A 2026 is capped at 60Hz, which is adequate for standard broadcast and streaming but will show judder in fast-motion content like sports or action games. The S Pro Mini LED runs at 144Hz, a refresh rate that delivers genuinely smoother motion and, critically, makes it a far more capable gaming display. On the HDR front, the A 2026 supports HDR10 and HLG, covering most streaming content. The S Pro Mini LED adds HDR10+ and Dolby Vision, the two dynamic metadata formats that adapt tone-mapping scene by scene — a meaningful advantage for users with Netflix, Disney+, or Apple TV+ content that leverages those formats.
The A 2026 does have a marginally higher pixel density (68 ppi vs 59 ppi) due to its smaller 65″ screen, meaning text and fine detail may appear fractionally crisper at close distances. Both panels share identical 178° horizontal and vertical viewing angles, anti-reflection coatings, and ambient light sensors, so neither has an edge in placement flexibility or usability features. Overall, the S Pro Mini LED 75″ holds a clear and multi-dimensional display advantage: superior panel technology, a much higher refresh rate, and broader HDR format coverage. The A 2026 is a capable entry-level 4K panel, but it cannot match the S Pro Mini LED's contrast, motion clarity, or HDR versatility.