LG 85QNED92AUA 85" VS TCL 115C7K 115"

Both the LG 85QNED92AUA and the TCL 115C7K share the same 4K (3840 x 2160) resolution and identical 10-bit color depth capable of rendering 1.07 billion colors, so neither has a raw resolution or color palette advantage. However, the massive size difference — 84.5″ vs. 114.5″ — means the TCL spreads those same pixels across a much larger panel, resulting in a noticeably lower pixel density of 38 ppi versus the LG′s 52 ppi. In practice, on a screen that large, this trade-off is most visible at closer seating distances; at typical living-room viewing distances the difference is far less perceivable.

On refresh rate and adaptive sync, the TCL holds a measurable edge. Its 144Hz panel outpaces the LG′s 120Hz, which matters most for gaming and fast-motion content. The TCL also supports AMD FreeSync Premium Pro — the most advanced tier — while the LG tops out at FreeSync Premium. For HDR, both cover HDR10, Dolby Vision, and HLG, but the TCL adds HDR10+ support, giving it broader format compatibility with Amazon and other HDR10+ sources. Both panels share identical 178° horizontal and vertical viewing angles, anti-reflection coatings, and ambient light sensors, so comfort and room adaptability are evenly matched.

Overall, the TCL 115C7K has a clear display specification advantage: it offers a higher refresh rate, a superior adaptive sync tier, and broader HDR format support. The LG 85QNED92AUA counters with higher pixel density for a sharper image per inch, which is a genuine advantage in smaller rooms or at closer distances. The right choice depends on use case — the TCL is the stronger performer for gaming and multimedia versatility, while the LG delivers a crisper picture for its size.

The wired connectivity foundations are nearly identical: both TVs offer 4 HDMI 2.1 ports and a single RJ45 Ethernet port, ensuring full bandwidth for 4K/120Hz gaming and future-proof source compatibility. Where they diverge is in USB — the TCL 115C7K edges ahead with 3 USB ports versus the LG′s 2, a small but practical advantage for users who connect multiple storage drives, keyboards, or other peripherals simultaneously.

On wireless, the LG 85QNED92AUA pulls ahead in Wi-Fi range and congestion handling by supporting Wi-Fi 6E (802.11ax), which the TCL lacks. Wi-Fi 6E opens access to the less-crowded 6GHz band, translating to more stable throughput in dense network environments. The TCL counters with the newer Bluetooth 5.4 versus the LG′s 5.3, a marginal difference that brings slightly improved connection reliability and efficiency — though neither version represents a dramatic real-world gap. Both support Miracast for wireless screen mirroring.

A notable exclusive on the TCL is the presence of a 3.5mm headphone jack, absent on the LG — a genuinely useful port for users who want to connect wired headphones directly to the TV without an adapter or separate audio device. Taken together, the connectivity comparison is close, but the LG′s Wi-Fi 6E support is the most impactful differentiator for households with crowded wireless networks, while the TCL offers slightly more physical port flexibility and the convenience of a headphone jack.

Across every audio specification provided, the LG 85QNED92AUA and the TCL 115C7K are a perfect match. Both include built-in stereo speakers with a subwoofer, support the full Dolby audio stack — Dolby Digital, Dolby Digital Plus, Dolby Audio, and Dolby Atmos — and offer both HDMI ARC and eARC for connecting external sound systems. There is no differentiating data point in this group.

The shared Dolby Atmos support is worth highlighting for users who plan to use the TV′s built-in speakers: it enables object-based spatial audio processing, which creates a more dimensional soundstage than standard stereo. Meanwhile, HDMI eARC is the more practically significant port for home theater setups, as it supports lossless and high-bitrate audio formats — like Dolby TrueHD and DTS-HD — passthrough to an AV receiver or soundbar, which plain ARC cannot handle.

Based strictly on the provided specs, this group is a dead tie. Neither TV holds any audio advantage over the other, and the choice between them should rest entirely on the differentiators found in other specification groups.

The physical scale difference between these two TVs is dramatic and cannot be overstated. The TCL 115C7K is 2566 mm wide and 1471 mm tall — roughly 2.6 meters across — compared to the LG′s 1890 mm width and 1082 mm height. That makes the TCL over 35% wider and taller, requiring a fundamentally different room and furniture configuration. Wall-mounting the TCL is a serious structural undertaking, and even stand placement demands a surface well over 2.5 meters wide.

Weight tells a similar story. The TCL tips the scales at 99.8 kg — nearly 100 kg, or roughly three times the LG′s 35.2 kg. This has direct implications for installation: the TCL will almost certainly require professional mounting, reinforced wall anchors, or a heavy-duty dedicated stand, and maneuvering it into position is a multi-person job regardless. The LG, while still a large and heavy panel, is far more manageable by comparison. Both support VESA mounting, but the practical burden of executing that mount is vastly different between the two.

On thickness, the TCL is marginally slimmer at 57 mm versus the LG′s 60.9 mm — a negligible real-world difference. In this group, there is no outright winner in terms of quality, but the LG 85QNED92AUA has a decisive practicality advantage: it is dramatically easier to transport, install, and accommodate spatially. The TCL is purpose-built for large dedicated home theater or commercial spaces where its scale is an asset, not a liability.

The smart feature sets are largely aligned — both TVs include built-in smart platforms, AirPlay, Google Assistant, voice commands, smartphone remote control, USB recording, and standard convenience features like sleep timer and child lock. The one meaningful ecosystem differentiator is that the LG 85QNED92AUA also supports Amazon Alexa, which the TCL 115C7K lacks. For households already invested in Alexa-based smart home devices, this gives the LG a tangible integration edge — users can control compatible lights, thermostats, and routines directly through the TV.

The most striking gap in this group, however, is power consumption. The LG draws 368W during operation versus the TCL′s 180W — more than double. While larger panels generally consume more power, this is a substantial difference that adds up meaningfully over time. For a TV used several hours daily, the LG′s higher draw could translate to a noticeably larger electricity bill annually. Standby consumption is identical at 0.5W for both, so the gap is purely a usage-time concern.

On balance, the TCL 115C7K′s dramatically lower operating power consumption is the standout advantage in this group for most users, especially given the TCL′s larger screen size making the efficiency gap even more impressive. The LG counters with Alexa compatibility for smart home users, but that advantage is ecosystem-specific. For anyone not already embedded in the Alexa ecosystem, the TCL holds a clear edge here on long-term running costs.