The LG G6 vs LG G5 showdown pits LG’s new 2026 flagship OLED against its highly praised 2025 predecessor, and the answer to whether you should pay more for the newer model is far less obvious than you might expect. Both TVs use the same Primary RGB Tandem OLED panel technology—a four-layer stack that delivers exceptional brightness and colour volume—but LG claims the G6 achieves 20% greater brightness than the G5. The real question isn’t whether the G6 improves on paper; it’s whether those gains justify a higher asking price when the G5 has already earned five-star reviews and may now be available at a discount.
Key Takeaways
- Both G6 and G5 use identical Primary RGB Tandem OLED panel architecture with four stacked layers.
- LG claims the G6 is 20% brighter than the G5, a meaningful jump in an already brilliant TV.
- The G5 earned five-star reviews and remains one of the best OLED TVs available in 2026.
- The G6 is positioned as an incremental refinement rather than a complete redesign.
- Value depends on current pricing: discounted G5 models may offer better performance-per-dollar than launch-price G6 units.
Panel Technology and the Brightness Question
LG’s Primary RGB Tandem OLED represents a fundamental shift in how the company approaches OLED brightness. Rather than relying on a single emissive layer, the technology stacks four OLED layers to amplify light output while maintaining the colour accuracy and contrast that make OLED TVs so compelling. The G5 already pushed brightness boundaries with this architecture, earning praise for a dazzling, punchy picture that handles both SDR and HDR content with confidence. The G6 builds on that foundation with LG’s claim of 20% additional brightness, demonstrated at CES in Las Vegas. On paper, that sounds significant—but brightness alone doesn’t tell the whole story. What matters is whether that extra luminance translates to a noticeably better viewing experience in your living room, or whether it simply extends the already impressive G5’s lead over conventional OLED competitors.
The shared panel technology means both TVs handle colour volume and contrast identically at baseline levels. Where the G6 theoretically pulls ahead is in peak brightness performance, which becomes most noticeable in bright rooms or when watching high-dynamic-range content with intense highlights—flames, explosions, sunlit scenes. For viewers in dimly lit home cinemas, the difference may be less pronounced. The G5 already ticks every box for a five-star TV, which raises an uncomfortable question: if the G5 was already nearly perfect, how much does 20% more brightness actually improve daily viewing?
Picture Quality, Motion, and Gaming Performance
The G5 earned its five-star reputation by delivering crisp, colourful pictures with exceptional contrast and shadow detail. Its motion handling proved strong enough for fast-paced sports and action films, while its gaming feature set—including HDMI 2.1 support, low input lag, variable refresh rate, and auto low-latency mode—made it perfect for gamers seeking a premium display that doubles as a console-gaming powerhouse. The G6 is expected to retain all of these strengths and potentially refine them further, particularly in sustained brightness during bright scenes and possibly in panel longevity and efficiency. However, without independent testing data in hand, claims about generational improvements remain theoretical.
The real-world difference between the two sets will emerge in side-by-side viewing. If you’re watching a sunset scene or a high-contrast action sequence, the G6’s extra brightness might create a more immersive, punchier image. For gaming, where input lag and response time matter as much as raw brightness, both TVs already deliver the responsiveness modern console and PC gamers demand. The G5’s stacked smart platform with comprehensive gaming features means the G6 will need to offer tangible improvements in performance or new capabilities to justify an upgrade for existing G5 owners.
Design, Build, and Smart Features
LG’s gallery-style design philosophy carries through both the G5 and G6, positioning them as premium aesthetic objects rather than utilitarian black rectangles. Both TVs feature the same slim bezel, minimalist stand, and premium materials that make them as much at home in a living room as in a dedicated media space. The G6, as LG’s successor flagship, is expected to refine this design rather than reinvent it—tighter tolerances, possibly a slightly thinner profile, or subtle improvements in mounting flexibility. The webOS smart platform, which powers both TVs, offers a responsive interface, strong app ecosystem, and voice-assistant integration. Any upgrades to the G6’s software likely amount to refinements and new features rather than a wholesale overhaul.
The Value Question: Is the G6 Worth the Extra Money?
Here’s where the LG G6 vs LG G5 decision becomes genuinely difficult. The G6 commands a premium over the G5 at launch, yet the G5 may have dropped in price since its 2025 debut, improving its value proposition significantly. For someone buying a new flagship OLED today, the choice hinges on three factors: your budget, your viewing environment, and your tolerance for incremental improvements. If you have a bright living room and watch a lot of HDR content, the G6’s 20% brightness advantage could be the difference between a good experience and a breathtaking one. If you’re in a darker room or primarily watch streaming content and gaming, the G5’s already-exceptional brightness may be more than sufficient. A five-star TV remains a five-star TV, even if a newer model claims modest improvements.
The timing of this comparison matters enormously. Early G6 adopters will pay a premium for the latest badge and the promise of future-proofing. Patient buyers who wait for G5 prices to stabilize or drop further may find dramatically better value. Neither TV is a bad choice—the G5 has proven itself in the real world, while the G6 offers the theoretical advantage of LG’s latest refinements and potentially longer panel longevity. The question isn’t which TV is objectively better; it’s which one delivers the best experience for your specific situation at a price you’re willing to pay.
Should I buy the LG G6 if I already own the G5?
Unless you’re an early-adopter enthusiast or you watch in an exceptionally bright environment where the G6’s extra brightness would be transformative, upgrading from a five-star G5 is difficult to justify. The G5 already delivers exceptional picture quality, gaming performance, and features. The G6’s incremental improvements, while real, are unlikely to make you regret keeping your current set.
Is the LG G5 still worth buying in 2026?
Absolutely. The G5 remains one of the best OLED TVs available, and if it has dropped in price since launch, it represents outstanding value. You’re paying for a proven, five-star performer rather than betting on a new model’s promised refinements. For most buyers, the G5 ticks every box and leaves money in your pocket.
What’s the main difference between the G6 and G5?
LG claims the G6 is 20% brighter than the G5, with potential refinements in panel efficiency and longevity. Both use the same Primary RGB Tandem OLED panel technology, so the G6 is an evolution rather than a revolution.
The LG G6 vs LG G5 decision ultimately comes down to timing, budget, and your specific viewing needs. The G6 is a genuinely refined flagship that builds on an already excellent foundation, but the G5’s five-star track record and potential price advantage make it a compelling choice for buyers seeking maximum value. Neither TV will disappoint; the question is simply which one makes the most sense for your situation right now.
Where to Buy
£2,999.99 at Amazon | £3,137.99 at Amazon | £3,149.97 at Amazon | £3,198.99 at Amazon
This article was written with AI assistance and editorially reviewed.
Source: What Hi-Fi?
