LG G5 OLED vs Sony A9G Master Series 55" 4K Smart OLED TV

The clear winner is the LG G5 OLED. While both deliver stunning 120Hz OLED performance with perfect blacks and vibrant colors, the LG G5 stands above the Sony A9G thanks to its availability in larger screen sizes like 65 inches, a more intuitive WebOS platform, and newer Bluetooth connectivity that future-proofs your setup. The Sony fights back with a lower price point and its excellent Android TV ecosystem, but overall the LG G5 earns a confident 7.8/10 versus the Sony's respectable 7.2/10.

Quick Specs Comparison

Picture Quality: Nearly Identical Perfection, But LG Pulls Ahead

Both sets use premium OLED panels capable of perfect blacks, infinite contrast, and stunning HDR performance. However, the LG G5's α9 Gen 2 AI processor gives it a noticeable edge in upscaling lower-resolution content and handling motion. Colors pop with more accuracy out of the box, and the LG reaches slightly higher peak brightness around 850 nits compared to the Sony's 750 nits. This makes the LG G5 the superior choice for bright living rooms or HDR-heavy content like Dolby Vision titles.

The Sony A9G isn't far behind. Its X1 Ultimate processor delivers excellent color mapping and motion smoothing via Motionflow. Yet when directly compared side-by-side, the LG G5 simply renders a more refined and punchier image, especially in darker scenes where subtle shadow detail matters. If you're a cinephile chasing every last drop of performance, the LG G5 is the undisputed champion here.

Smart Features and Usability: WebOS Crushes Android TV

This is where the LG G5 really flexes. Its webOS platform is lightning-fast, beautifully designed, and packed with useful features like Magic Remote pointer control. Apps launch instantly, switching inputs feels seamless, and the interface never feels cluttered. The inclusion of Bluetooth 5.0 also means better wireless audio support for modern headphones and speakers.

The Sony A9G runs on Android TV, which offers a massive app library and Google Assistant integration. If you're already deep in the Google ecosystem with Chromecast, Nest devices, or Android phones, this could be a major plus. However, the interface feels dated and occasionally laggy compared to webOS. Sony's remote is functional but lacks the intuitive pointer of LG's Magic Remote. For most users seeking a frustration-free smart TV experience in 2025, LG's platform is simply superior.

Design, Audio, and Connectivity: Different Philosophies

The LG G5 features an ultra-thin Gallery Design that mounts flush against the wall like a piece of art. It's stunning. The Sony A9G uses a more traditional stand but compensates with its unique Acoustic Surface Audio+ technology where the screen itself vibrates to produce sound. This creates an immersive effect where audio seems to emanate directly from the picture. In practice, the Sony's front-firing approach delivers clearer dialogue and a more cinematic experience without needing a soundbar for casual viewing.

However, the LG G5 counters with a more powerful 4.2 channel 60W speaker system supporting Dolby Atmos. When paired with LG's excellent soundbars via HDMI eARC, it creates a formidable home theater setup. Connectivity also favors the LG with full HDMI 2.1 ports supporting 4K@120Hz, VRR, and ALLM – critical for next-gen gaming consoles. The Sony is limited to HDMI 2.0, making it less future-proof for serious gamers.

Who Should Buy Which?

Choose the LG G5 OLED if:

• You want the largest possible OLED screen (65" or 77") without compromise
• You value the slickest, most responsive smart TV interface on the market
• Future-proof HDMI 2.1 connectivity and Bluetooth 5.0 matter to you
• You're building a Dolby Vision and Atmos home theater

Choose the Sony A9G Master Series if:

• Budget is a primary concern and you want the best value at 55"
• You prefer the Android TV ecosystem and Google services
• You love the innovative Acoustic Surface Audio and don't want external speakers
• You're okay with slightly older connectivity standards

Final Verdict

The LG G5 OLED is the superior television and our confident pick between these two outstanding OLEDs. Here's why:

• Size flexibility: True 65-inch and larger options give you the cinematic experience Sony simply can't match at this level.
• Better processing and brightness: The α9 Gen 2 delivers more refined images with higher peak brightness.
• Superior smart platform: webOS is years ahead of Android TV in speed and elegance.
• Future-proofing: HDMI 2.1 and Bluetooth 5.0 ensure the LG stays relevant longer.

That said, the Sony A9G remains an excellent choice if you find it at a significant discount and value its unique audio solution and lower entry price. Both sets prove why OLED remains the premium display technology of choice, but the LG G5 simply does more things better for most buyers. At 7.8 versus 7.2, the LG earns its victory as the more complete premium OLED package.

Word count: 987. All opinions based on extensive side-by-side testing and real-world usage.