LG 86UA7700AUA 86" VS Samsung UN85U8000FF 85"

Both the LG 86UA7700AUA and the Samsung UN85U8000FF share the same foundational display architecture: LED-backlit LCD panels with a 4K (3840 x 2160) resolution, 10-bit color depth, 1070 million colors, and a 60Hz refresh rate. In practice, this means both sets deliver the same level of color gradation and motion handling at the panel level, with no advantage to either side on these core attributes. Viewing angles are identical at 178º both horizontally and vertically, and both include an anti-reflection coating and ambient light sensor — so neither has an edge in usability or ergonomic adaptability.

The most meaningful differentiator in this group is HDR format support. Both TVs support HDR10 and HLG, but only the Samsung also supports HDR10+. HDR10+ is a dynamic metadata format — unlike static HDR10, it adjusts brightness and contrast settings scene by scene, which can result in more accurate highlight and shadow rendering on compatible content. Neither TV supports Dolby Vision, so for users with a library of Dolby Vision content this is a moot point, but for HDR10+ encoded titles (increasingly common on Amazon Prime Video and select 4K Blu-rays), the Samsung delivers a more optimized viewing experience.

The other minor distinction is physical screen size: the LG measures 86.4″ versus the Samsung's 84.5″, a roughly 2-inch difference that is largely imperceptible in a real living room setup. Overall, the Samsung UN85U8000FF holds a clear edge in this group, solely due to its HDR10+ support — a tangible advantage for future-proofing and content compatibility, while all other display specs are effectively equivalent.

On the wired side, both TVs are essentially identical: three HDMI 2.1 ports, one RJ45 ethernet port, and no legacy connectors like VGA or DVI. HDMI 2.1 is a meaningful shared strength here — it supports the bandwidth needed for 4K at higher refresh rates and advanced gaming features, making both sets well-equipped for current-generation consoles and media devices. Wireless connectivity is also a wash, with both supporting Wi-Fi 5 (802.11ac) and Miracast screen mirroring.

Where the two diverge is in Bluetooth and USB. The Samsung UN85U8000FF carries the newer Bluetooth 5.3 versus the LG's 5.1 — a modest but real upgrade that brings improved connection stability, lower latency, and slightly better energy efficiency for paired peripherals like wireless headphones or keyboards. For most users this difference will be subtle, but it does represent a more future-ready wireless stack. Conversely, the LG 86UA7700AUA offers 2 USB ports compared to just 1 on the Samsung — a practical advantage if you plan to connect multiple devices simultaneously, such as a USB drive and a keyboard, without relying on a hub.

These two differences pull in opposite directions, making this category close to a draw depending on your priorities. Users who lean on Bluetooth accessories will favor the Samsung's newer standard, while those who need flexible USB connectivity will appreciate the LG's extra port. Neither product has a commanding overall edge in connectivity.

Across every audio specification in this group, the LG 86UA7700AUA and the Samsung UN85U8000FF are a perfect match. Both feature stereo speakers, Dolby Audio and Dolby Digital support, digital audio output, and crucially, both include HDMI ARC and eARC. That last point is worth highlighting: eARC in particular is the most capable version of the audio return channel, able to pass lossless, high-bandwidth audio formats back to a soundbar or AV receiver over a single HDMI cable — a genuinely useful feature for home theater setups that neither TV withholds from the user.

Neither model includes a subwoofer or any proprietary spatial audio enhancement, which sets a realistic ceiling on what the built-in speakers can deliver. At this screen size, both TVs are firmly in the category where an external sound system is strongly encouraged to match the visual experience — but that is a reflection of the shared spec set, not a weakness unique to either product.

This group is an unambiguous tie. There is not a single audio specification that differentiates these two TVs, and any purchase decision should be made entirely on other criteria.

The standout figure in this group is weight. The LG 86UA7700AUA tips the scales at 45,904 g (roughly 45.9 kg), while the Samsung UN85U8000FF comes in at just 29,200 g (29.2 kg) — making the Samsung approximately 37% lighter despite being only marginally smaller in screen size. For a TV of this scale, that difference is highly consequential: wall mounting a 46 kg panel typically requires additional structural reinforcement, more installers, and heavier-duty wall brackets, whereas the Samsung's weight is far more manageable for standard large-screen installations.

The two TVs trade blows on physical dimensions in an interesting way. The LG is notably slimmer at 60.9 mm deep versus the Samsung's 77 mm, which contributes to its significantly smaller overall volume (~129,725 cm³ vs ~157,673 cm³). So while the LG has a lower profile on a wall or stand, the Samsung compensates with its dramatically lower mass. Both support VESA mounting, so neither restricts bracket compatibility.

For most buyers, weight is the more practical concern at this screen size, and the Samsung holds a clear advantage there. The LG's slimmer depth is a real aesthetic benefit for wall-flush installations, but the weight penalty makes the installation itself considerably more demanding. Users prioritizing ease of mounting and handling will find the Samsung the more accommodating choice in this group.

From a smart features standpoint, these two TVs are essentially cut from the same cloth. Both ship with a built-in smart platform, support AirPlay, Google Assistant, and Alexa, and neither is compatible with Siri or Apple HomeKit. USB recording, smartphone remote control, voice commands, and standard utilities like a sleep timer and child lock are all present on both sets. With identical warranty periods and the same standby draw of 0.5W, there is genuinely nothing in the smart feature stack that separates them.

The one measurable difference in this group is operating power consumption: the LG 86UA7700AUA draws 195W during use versus 218W for the Samsung UN85U8000FF. That is a 23W gap — not dramatic, but meaningful over time. For a TV used four hours per day, that translates to roughly 33 additional kilowatt-hours per year on the Samsung, which adds a small but real cost to long-term ownership depending on local electricity rates.

Overall, this group is very nearly a tie, with a narrow edge to the LG on the basis of lower power consumption alone. For users who are energy-conscious or simply want to minimize running costs on a large-screen TV used heavily, the LG's efficiency advantage is the only differentiator the data supports here.