LG 100QNED85AU 100" VS Samsung QN75Q8FAAF 75"

Both the LG 100QNED85AU and the Samsung QN75Q8FAAF share a strong display foundation: native 4K (3840 x 2160) resolution, a 10-bit panel capable of rendering 1.07 billion colors, a 144Hz refresh rate, and AMD FreeSync Premium support — making both well-suited for fluid motion in sports and gaming. Anti-reflection coatings and ambient light sensors are present on both, along with identical 178° horizontal and vertical viewing angles, so neither holds an edge in those shared attributes.

The most consequential difference between these two is panel size and the trade-off it creates. The LG's 100.3″ screen is in an entirely different class for room-filling presence, but its sheer scale brings the pixel density down to just 44 ppi — noticeably lower than the Samsung's 59 ppi on its 74.5″ panel. In practice, this means the Samsung will render finer detail and sharper text at typical viewing distances, while the LG demands a larger room and greater seating distance to avoid visible pixel structure. On panel technology, the LG uses Mini-LED backlighting for potentially more precise local dimming, whereas the Samsung relies on a QLED layer for enhanced color volume — both are meaningful but different approaches to LCD enhancement.

For HDR, the Samsung holds a clear spec advantage: it supports HDR10+ in addition to HDR10 and HLG, whereas the LG is limited to HDR10 and HLG only. HDR10+ adds dynamic metadata — meaning brightness and contrast are optimized scene-by-scene rather than using a single static tone map — which can yield a more accurate HDR presentation on compatible content. Neither supports Dolby Vision. Overall, the Samsung QN75Q8FAAF has the edge in pixel sharpness and HDR format coverage; the LG 100QNED85AU is the only choice if screen size is the priority, but buyers should factor in viewing distance carefully to offset its lower pixel density.

Wired connectivity is a dead heat: both TVs offer 4 HDMI 2.1 ports, 2 USB ports, and a single RJ45 ethernet jack — a solid and identical layout that comfortably accommodates gaming consoles, streaming boxes, soundbars, and a wired network connection without compromise. HDMI 2.1 on all four ports is particularly valuable, as it supports the full 4K@120Hz bandwidth needed for next-generation gaming devices.

Where the LG pulls ahead is wireless. Both share Bluetooth 5.3 and Miracast support, but their Wi-Fi capabilities diverge meaningfully. The Samsung tops out at Wi-Fi 5 (802.11ac), while the LG adds support for both Wi-Fi 6 and Wi-Fi 6E. Wi-Fi 6 brings improved efficiency and throughput in congested network environments — useful in apartments or homes with many connected devices. Wi-Fi 6E goes further, gaining access to the less-crowded 6GHz band, which translates to lower latency and more consistent speeds when streaming high-bitrate 4K content wirelessly.

The LG 100QNED85AU has a clear edge in connectivity. For users with a modern Wi-Fi 6 or 6E router, the LG's wireless stack is future-proof in a way the Samsung simply is not. The Samsung's Wi-Fi 5 ceiling is not a dealbreaker for most current use cases, but it is the one meaningful gap in an otherwise evenly matched connectivity comparison.

On the audio format side, these two TVs are functionally identical: both decode Dolby Digital, Dolby Digital Plus, and Dolby Atmos, and both support HDMI ARC and eARC for seamless passthrough to external soundbars or receivers. eARC in particular is worth noting — it carries enough bandwidth to pass lossless Dolby Atmos audio to a compatible soundbar, which matters for home theater setups prioritizing audio quality.

The single hardware differentiator in this group is the LG's inclusion of a built-in subwoofer, which the Samsung lacks. A dedicated subwoofer handles low-frequency reproduction — the kind of bass depth that makes explosions, music, and cinematic scores feel physically present. Without one, the Samsung's built-in audio system will sound comparatively thin in the low end, which is a noticeable gap for standalone use without external speakers.

The LG 100QNED85AU takes the edge here. For users who plan to pair either TV with a soundbar or full audio system, the difference becomes irrelevant — eARC handling is equal. But for anyone relying on the TV's internal speakers, the LG's subwoofer provides a more complete and impactful audio experience out of the box.

The scale difference between these two TVs is dramatic and shapes every aspect of installation planning. The LG's 2230 mm width and 1278 mm height demand a genuinely large wall or entertainment space — this is a display that will dominate most living rooms by design. The Samsung, at 1676 mm wide and 960 mm tall, is still a substantial screen but fits comfortably in spaces where the LG simply would not.

Weight and thickness tell an equally stark story. At 68,084 g (roughly 150 lbs), the LG requires professional installation and wall mounts rated for significant load — moving or repositioning it is not a casual task. The Samsung at 29,710 g (about 65 lbs) is less than half the weight, making wall mounting more straightforward and solo handling at least feasible. The LG is also notably thicker at 50.8 mm versus the Samsung's slim 25.4 mm profile, which matters for flush wall-mount aesthetics. Both support VESA mounting, so neither restricts bracket options on that front.

There is no winner here in the traditional sense — these products serve fundamentally different installation contexts. The Samsung QN75Q8FAAF is far easier to place, mount, and live with in a typical home environment. The LG 100QNED85AU is an intentional statement piece that trades installation simplicity for sheer presence, and buyers should carefully verify their room dimensions and wall reinforcement before committing.

Across the smart features landscape, these two TVs are remarkably well-matched. Both run a built-in smart TV platform with voice command support across Google Assistant and Alexa, offer AirPlay for Apple device mirroring, support smartphone remotes, enable USB recording, and share an identical 0.5W standby power draw and 1-year warranty. Neither supports Siri or Apple HomeKit, so users deep in the Apple ecosystem will find the same limitation on both sides.

The only differentiator in this entire group is the Samsung's inclusion of a rechargeable remote control, which the LG omits. It is a small but genuinely convenient quality-of-life detail — eliminating the recurring cost and hassle of disposable batteries over the TV's lifespan. For a product at this price tier, a rechargeable remote is an expectation rather than a luxury, making its absence on the LG a minor but noticeable oversight.

This group is essentially a tie, with the Samsung QN75Q8FAAF claiming a slim practical edge thanks to its rechargeable remote. For users whose feature priorities go beyond remote convenience — smart platform ecosystem, voice assistant access, or USB recording — neither TV holds a meaningful advantage over the other.