Hisense 100U75QG 100" VS LG 86UA7700AUA 86"

Both the Hisense 100U75QG and the LG 86UA7700AUA share a 4K (3840 x 2160) resolution with 10-bit color depth and 1.07 billion displayable colors, meaning neither has a fundamental advantage in raw color volume or resolution. The LG's smaller 86.4″ panel does result in a marginally higher pixel density (51 ppi vs 44 ppi), which in theory yields a slightly tighter image — though at typical living-room viewing distances from screens this large, the difference is effectively imperceptible to the human eye.

Where the two TVs diverge sharply is panel technology and motion handling. The Hisense uses a QLED Mini-LED backlit LCD panel, which enables far more precise local dimming zones and richer contrast compared to the LG's standard LED-backlit LCD. More critically, the Hisense's 165Hz native refresh rate dwarfs the LG's 60Hz — a difference that is immediately noticeable in fast-motion content, sports, and gaming, where the LG will exhibit more motion blur and judder by comparison. HDR support also tilts decisively toward the Hisense: it covers HDR10, HDR10+, Dolby Vision, and HLG, while the LG supports only HDR10 and HLG, missing out on the dynamic metadata formats that allow scene-by-scene tone mapping for more accurate HDR reproduction.

The Hisense 100U75QG holds a clear overall advantage in the display category. Its superior panel technology, dramatically higher refresh rate, and comprehensive HDR ecosystem make it a more capable display in virtually every real-world scenario — from cinematic HDR content to gaming. The LG's only technical edge is a slightly higher pixel density, but this advantage is negligible at these screen sizes and viewing distances, and it does not offset the Hisense's broader set of display strengths.

On the wired side, both TVs share HDMI 2.1 and identical USB and Ethernet port counts, so bandwidth-hungry sources like 4K/120fps gaming consoles are supported on either set. The one practical difference is that the Hisense offers 4 HDMI ports versus the LG's 3 — a modest but real advantage for users running multiple devices such as a soundbar, games console, streaming stick, and Blu-ray player simultaneously without relying on a switch.

Wireless connectivity is where the gap widens more meaningfully. The Hisense supports Wi-Fi 6E (802.11ax), the latest generation, which operates on the 6GHz band and delivers lower latency and less interference in congested network environments — particularly valuable in apartments or homes with many connected devices. The LG tops out at Wi-Fi 5 (802.11ac), which is capable but increasingly dated. Similarly, the Hisense's Bluetooth 5.3 versus the LG's 5.1 offers marginally improved connection stability and efficiency, relevant for wireless headphones or peripherals. The Hisense also includes a 3.5mm audio jack, which the LG omits — a small but useful addition for direct headphone connections without needing Bluetooth.

The Hisense 100U75QG holds a clear connectivity advantage. Its extra HDMI port, significantly more future-proof Wi-Fi 6E support, newer Bluetooth version, and headphone jack collectively make it the more versatile and forward-compatible option for both current setups and evolving home ecosystems.

The audio foundation is largely identical between these two TVs: both decode Dolby Digital, Dolby Digital Plus, Dolby Atmos, and Dolby Audio, and both support HDMI ARC and eARC for passing high-quality audio signals to an external soundbar or receiver. For users planning to route audio through a dedicated sound system, this common ground means neither TV imposes a meaningful limitation.

The meaningful split comes down to two specs. First, the Hisense includes a built-in subwoofer, while the LG does not — a tangible difference for anyone relying primarily on the TV's internal speakers, as low-frequency reproduction (bass from explosions, music, or cinematic scores) will be noticeably fuller on the Hisense without any external hardware. Second, the Hisense adds DTS:X support, an object-based surround format that complements Dolby Atmos and ensures compatibility with a wider range of Blu-ray discs and streaming content that uses DTS encoding rather than Dolby.

The Hisense 100U75QG takes a clear edge here. Its integrated subwoofer gives it a stronger out-of-the-box listening experience, and DTS:X support broadens its codec compatibility in ways that matter to home theater enthusiasts. The LG is not deficient for soundbar-centric setups, but as a standalone audio system it trails noticeably.

The size difference between these two TVs is substantial and intentional — the Hisense is a 100-inch set and the LG an 86-inch, so the physical footprint gap is expected rather than surprising. At 2230.1 mm wide and 1282.7 mm tall, the Hisense demands serious wall or room space, while the LG's 1927.9 mm × 1104.9 mm frame is more accommodating of standard living room layouts. Both support VESA mounting, so wall installation is an option for either — though the Hisense's size will still require careful structural planning.

Weight is where installation complexity diverges most sharply. The Hisense weighs 63.5 kg, which typically requires at least two people and a reinforced wall mount rated for that load. The LG, at 45.9 kg, is meaningfully lighter — roughly 28% less — making it considerably easier to maneuver, mount, and position without specialized equipment. The Hisense is also notably thicker at 81.3 mm versus the LG's 60.9 mm, which affects how prominently it protrudes from a wall when mounted.

There is no outright winner here, as the design trade-offs are largely a function of screen size. However, for users where installation logistics matter — tight spaces, solo mounting, or rental walls — the LG 86UA7700AUA is the more manageable option. Those who have already committed to a 100-inch installation should simply factor the Hisense's considerable weight and depth into their planning accordingly.

Remarkably, these two TVs are virtually identical across the entire features category. Both offer a full smart TV platform with Google Assistant, Alexa, and AirPlay support, alongside smartphone remote control, USB recording, voice commands, and practical conveniences like a sleep timer and child lock. Neither supports Apple HomeKit/Siri, and both register an identical 0.5W standby power consumption — meaning neither will meaningfully impact an electricity bill while idle.

The sole differentiator in this group is the warranty period: the Hisense comes with 2 years of coverage versus the LG's 1 year. For a large, high-investment display, this is a genuinely meaningful distinction — an extra year of manufacturer protection reduces out-of-pocket risk on a panel that would be costly to repair or replace, and signals a degree of confidence from the manufacturer in the product's longevity.

Given how closely matched everything else is, the Hisense 100U75QG takes a narrow but real edge in this group purely on the strength of its longer warranty. Users who prioritize ecosystem features will find no practical difference between the two; the Hisense simply offers greater post-purchase peace of mind.