LG 85QNED92AUA 85" VS Sony Bravia K-75S20M2 75"

Both TVs share the same 4K (3840 x 2160) resolution, 10-bit panel depth, and a color volume of 1070 million colors, so at the foundational level they are evenly matched in image fidelity. However, the underlying panel technology tells a very different story. The LG 85QNED92AUA uses a Mini-LED backlight system, which employs thousands of smaller, more precisely controlled dimming zones compared to the conventional LED-backlit LCD in the Sony K-75S20M2. In practice, this translates to tighter local dimming, deeper perceived blacks, and significantly better handling of high-contrast scenes — a meaningful real-world advantage for dark-room viewing.

The single largest performance gap between these two displays is the refresh rate: the LG runs at 120Hz while the Sony is capped at 60Hz. For everyday TV watching this may be acceptable, but for sports, action films, or gaming, 120Hz delivers dramatically smoother motion with far less blur. Paired with that, the LG also supports Dolby Vision — a dynamic, frame-by-frame HDR format — while the Sony is limited to HDR10 and HLG only. Dolby Vision content, increasingly common on streaming platforms, will look noticeably more optimized on the LG. Neither TV supports HDR10+, so that is a wash.

The Sony does edge out a slightly higher pixel density (59 ppi vs. 52 ppi) owing to its smaller 74.5″ screen, meaning individual pixels are marginally harder to discern up close — but at living-room viewing distances the difference is largely imperceptible. Both panels offer identical 178° horizontal and vertical viewing angles, anti-reflection coatings, and ambient light sensors, so room placement flexibility and everyday usability are equivalent. Overall, the LG 85QNED92AUA holds a clear display advantage: its Mini-LED backlighting, 120Hz refresh rate, larger screen, and Dolby Vision support collectively represent a substantially more capable panel for both cinematic and interactive use cases.

Rarely in a head-to-head comparison does a spec group land in a complete dead heat, but connectivity is exactly that here. Both the LG 85QNED92AUA and the Sony Bravia K-75S20M2 carry an identical port lineup: 4 HDMI 2.1 ports, 2 USB ports, and a single RJ45 ethernet jack. HDMI 2.1 is worth highlighting as a shared strength — it supports the bandwidth needed for 4K at 120Hz passthrough from gaming consoles and high-end sources, which is increasingly relevant for modern setups.

Wireless connectivity is equally matched. Both TVs support the full current Wi-Fi stack through Wi-Fi 6E (802.11ax), meaning they can tap into the less congested 6GHz band for lower latency and more stable streaming in crowded network environments. Bluetooth is also identical at version 5.3 on both sets, offering the same range, connection stability, and low-energy efficiency for pairing headphones, soundbars, or remote controls. Miracast screen mirroring support is present on both as well.

There are simply no differentiators to separate these two TVs on connectivity. Every port type, count, wireless standard, and wireless version is a mirror image. For this specification group, the verdict is an unambiguous tie — your choice between these two models should rest entirely on the differences found in other categories.

The audio specifications for these two TVs are, point for point, identical. Both the LG 85QNED92AUA and the Sony Bravia K-75S20M2 include stereo speakers with a built-in subwoofer, support for Dolby Atmos and Dolby Audio, and both expose HDMI ARC and eARC ports for external audio system integration. The presence of eARC in particular is worth noting as a shared strength — unlike standard ARC, eARC carries enough bandwidth to pass lossless Dolby Atmos and DTS:X bitstreams to a compatible soundbar or AV receiver, making it the preferred connection for anyone planning to upgrade their audio setup down the line.

The onboard subwoofer on both sets suggests some low-frequency reinforcement beyond what typical flat-panel stereo speakers deliver, which can add body to action sequences and music without requiring an external audio system. That said, neither TV supports Dolby Virtual surround processing, so spatial audio simulation from the built-in speakers alone is not a feature either model offers. For users relying solely on the TV's internal audio, the experience should be comparable on both.

As with connectivity, this category produces a definitive tie. Every meaningful audio capability — format support, speaker configuration, and external audio passthrough — is shared equally between the two. The audio specs provide no basis for preferring one model over the other.

Given that the LG 85QNED92AUA is a 10-inch larger panel than the Sony Bravia K-75S20M2, it is naturally wider and taller — but the more telling design story is in thickness and weight. The LG measures just 60.9 mm deep compared to the Sony's 83 mm, making it notably slimmer despite housing a larger screen and its Mini-LED backlight assembly. That slimmer profile tends to read as more premium in a living room setting and can simplify flush wall-mounting.

Weight is the most practically significant difference for installation. The LG tips the scales at approximately 35.2 kg while the Sony comes in at 28 kg — a gap of over 7 kg. For a single-person install or a wall mount rated to a tighter load limit, that difference is real and worth planning around. Interestingly, despite its larger footprint, the LG's slimmer depth results in a lower total volume than the Sony, meaning the bigger TV actually occupies less physical bulk in three-dimensional space. Both support VESA mounting, so neither has an inherent advantage in wall-mount compatibility.

The edge here depends on the user's priorities. Those optimizing for a sleeker, thinner aesthetic on a wall will prefer the LG, which is the slimmer of the two by a meaningful margin. For easier handling and installation logistics — particularly in a solo-install scenario — the lighter Sony has a practical advantage. Neither TV dominates this category outright; the tradeoffs are genuine and context-dependent.

Smart platform features are a carbon copy between these two TVs. Both the LG 85QNED92AUA and the Sony Bravia K-75S20M2 offer built-in smart TV systems, AirPlay, Google Assistant, Alexa, smartphone remote control, USB recording, and voice commands. Neither supports Apple HomeKit or Siri, and neither ships with a rechargeable remote. For the vast majority of users, the day-to-day smart TV experience will feel functionally identical on both sets.

The one concrete and consequential differentiator in this group is operating power consumption. The LG draws 368W under load versus the Sony's 226W — a gap of 142W, or roughly 63% more energy per hour of use. Over the course of a year of regular viewing, that difference compounds significantly on an electricity bill. The LG's higher draw is at least partly attributable to its larger screen size and Mini-LED backlight system, but the raw numbers are what they are. Standby consumption is identical at 0.5W on both, so the disparity is purely during active use.

For features and smart capabilities, this category is effectively a tie — with one important caveat. Users who are energy-conscious or expect heavy daily usage should factor the LG's substantially higher power draw into their decision. Those indifferent to running costs will find nothing to separate the two TVs on smart features alone.