LG 86QNED9MAUA 86" VS LG OLED65C5PUA 65"

The most fundamental difference here is panel technology. The LG OLED65C5PUA uses an OLED panel, where each pixel generates its own light and can switch off completely — delivering true blacks, virtually infinite contrast, and superior color accuracy by nature. The LG 86QNED9MAUA, by contrast, uses a Mini-LED LCD panel, which relies on a backlight and local dimming zones. While Mini-LED is a significant step up from conventional LED-LCD, it still cannot match OLED's per-pixel precision in dark scenes. For content that relies heavily on shadow detail or high-contrast imagery — like cinematic films or HDR gaming — the OLED holds a structural advantage that no amount of backlight engineering fully closes.

On screen size and pixel density, the two TVs pull in opposite directions. The 86QNED9MAUA's 86.4″ panel is substantially larger, which matters for living room immersion and viewing from a distance. However, that extra real estate comes at a cost: its 51 ppi pixel density is noticeably lower than the OLED's 68 ppi. In practice, this means the OLED will render finer detail more crisply up close, while the QNED's lower density is best absorbed by maintaining the appropriate viewing distance for its size. Both share an identical 3840 x 2160 resolution and 10-bit color depth, supporting the same 1.07 billion colors. HDR format support is also evenly matched, with both covering Dolby Vision, HDR10, and HLG — but neither supports HDR10+.

For gaming, the QNED edges ahead with a 144Hz refresh rate versus the OLED's 120Hz, which translates to smoother motion in fast-paced titles. However, the OLED counters with a broader adaptive sync suite — Nvidia G-Sync, AMD FreeSync, and AMD FreeSync Premium — versus the QNED's AMD FreeSync alone, making it compatible with a wider range of gaming hardware. Overall, the OLED65C5PUA holds a clear display quality edge thanks to its panel technology, higher pixel density, and wider sync support, while the 86QNED9MAUA's advantages are its commanding screen size and slightly higher refresh rate ceiling.

Connectivity between these two TVs is largely aligned, but the LG OLED65C5PUA pulls ahead in port count. It offers 4 HDMI 2.1 ports and 3 USB ports, compared to 3 HDMI 2.1 and 2 USB on the LG 86QNED9MAUA. In a real-world setup — say, a gaming console, a streaming stick, a soundbar via ARC, and a Blu-ray player all connected simultaneously — that extra HDMI port on the OLED eliminates the need for a switch or constant cable swapping. The additional USB port similarly adds flexibility for media drives or peripherals.

Where the two TVs are fully equal is on wireless and wired networking. Both support the same Wi-Fi 6E (802.11ax) standard alongside older Wi-Fi generations, and both carry Bluetooth 5.3 — the same version, meaning equivalent range, connection stability, and multi-device pairing capability. A dedicated RJ45 Ethernet port is present on each, which remains the preferred option for latency-sensitive applications like 4K streaming or online gaming. Miracast wireless display mirroring is also supported on both.

Neither TV includes a 3.5mm audio jack, external memory slot, VGA, or DVI — omissions that are entirely expected at this product tier and pose no real-world drawback. Overall, the OLED65C5PUA holds a modest but practical connectivity edge, driven solely by its superior port count. For users running complex home theater setups with multiple sources, that difference is tangible; for lighter use cases, the gap is negligible.

Audio is where these two TVs diverge in interesting, almost complementary ways. The LG OLED65C5PUA includes a built-in subwoofer and support for DTS:X — two features absent on the LG 86QNED9MAUA. A dedicated subwoofer handles low-frequency reproduction directly from the TV's own speaker system, which matters for users who prefer not to pair an external soundbar. DTS:X, as an object-based surround format competitive with Dolby Atmos, broadens the range of content the OLED can decode natively — particularly relevant for Blu-ray discs and streaming titles encoded in that format.

The QNED counters with support for Dolby Digital Plus, which the OLED lacks. Dolby Digital Plus is a higher-bandwidth successor to standard Dolby Digital, commonly used in streaming services to carry richer audio data — though in practice, many users pass audio through to an external receiver or soundbar via the shared HDMI eARC port, which both TVs support, making this distinction less critical for those with dedicated audio setups. Both TVs also share Dolby Atmos and Dolby Audio support, ensuring compatibility with the most widely used immersive audio format on the market today.

Taken together, the OLED65C5PUA holds the broader audio advantage for standalone use: its subwoofer adds bass depth without external hardware, and DTS:X expands its native format compatibility. The QNED's Dolby Digital Plus support is a meaningful perk for streaming-heavy households, but it does not offset the OLED's hardware and codec breadth. Users routing audio to a dedicated sound system will find the gap narrower, but for out-of-the-box audio performance, the OLED has the stronger spec sheet.

The physical scale difference between these two TVs is dramatic. The LG 86QNED9MAUA weighs in at 45,495 g — nearly two and a half times the 18,507 g of the LG OLED65C5PUA. That is not a subtle difference; it has direct implications for installation, wall mounting, and whether a second person is required to position the TV safely. The QNED's footprint is also considerably larger, spanning nearly 1,928 mm wide and 1,115 mm tall, versus the OLED's 1,440 mm by 826 mm. Before any other consideration, buyers need to verify that their room and furniture can physically accommodate the QNED's dimensions.

Both TVs support VESA mounting, so wall installation is an option for either. However, the QNED's weight makes wall mounting a more involved engineering exercise — wall stud placement, bracket load ratings, and installer logistics all become more significant factors at that mass. The OLED's relative lightness makes it considerably more manageable in that scenario. On thickness, the gap is narrower: the QNED measures 50.8 mm deep versus the OLED's 45.7 mm, a modest difference that is unlikely to influence most decisions.

There is no objective winner here in the traditional sense — the right choice depends entirely on the intended space. The QNED's size is its purpose; buyers choosing an 86″ panel accept the physical trade-offs that come with it. What the data does make clear is that the OLED65C5PUA is dramatically easier to handle, install, and accommodate, giving it a meaningful practical advantage for anyone working with space or installation constraints.

From a smart platform and ecosystem standpoint, these two TVs are essentially identical. Both support AirPlay, Google Assistant, and Alexa, cover the same smart TV features — USB recording, smartphone remote control, voice commands, sleep timer, and child lock — and share the same 1-year warranty. Neither supports Apple HomeKit, and neither ships with a rechargeable remote. For the vast majority of users, the feature parity here is complete; ecosystem preference will not tip the decision either way.

Power consumption is where a meaningful, quantifiable difference emerges. The LG 86QNED9MAUA draws 209W during operation and consumes an estimated 384 kWh annually, while the LG OLED65C5PUA operates at 163.9W with an annual figure of 302 kWh. That gap of roughly 82 kWh per year translates to a real cost difference over the TV's lifespan — at average U.S. electricity rates, this could amount to a noticeable sum across several years of daily use. Standby consumption is identical at 0.5W for both.

It is worth contextualizing the power figures: the QNED's higher draw is largely a function of its significantly larger screen size and Mini-LED backlight system, not inefficiency per se. A fair comparison would normalize for panel area. Still, based strictly on the provided data, the OLED65C5PUA consumes less power in absolute terms, giving it a clear efficiency edge in this group. On features, the two are tied — the OLED simply costs less to run.