LG B3 vs LG B4: Entry-Level OLED TV Gets Better

By Naila Syifa
Updated March 2024


If you're looking for an entry-level OLED TV that offers great picture quality and features at a reasonable price, the LG B series should be on your consideration list. This year, LG revealed a new addition to the B series lineup, the LG B4, which is expected to bring even more improvements to this popular line of OLED TVs.

How does this new model compare to its 2023 predecessor, the LG B3? What gets better, or worse, with the new LG B4? Let's find out by comparing both models across a few key consideration aspects!

Key Takeaways

LG B4 offers better Alpha 8 Processor compared to the Alpha 7 in B3, allowing it to process and upscale images better. B4 also comes with new Matter support and has faster gaming response time. Sound quality of both TVs is on par, but B4 supports more immersive virtual 9.1.2 surround sound compared to B3's support for virtual 5.1.2 surround sound.



2023 Version

✓ α7 AI Processor Gen6
✓ Supports gaming and home cinema
✓ Virtual 5.1.2 Up-mix
✓ webOS 23



2024 Version

✓ α8 AI Processor 4K
✓ Supports gaming and home cinem
✓ Virtual 9.1.2 Up-mix
✓ webOS 24

#1 Price



LG B3 has a starting price of around $1,200 for the 55-inch model, which then increases to US$1,300 for the 65-inch model and US$1,800 for the largest 77-inch model.

LG B4, on the other hand, retails at $1,700 for the 55-inch model, $2,200 for the 65-inch model, and $3,400 for the 77-inch model.

The B4 may seem to be considerably more expensive than the B3, but both the B3 and B4 are LG's entry-level OLED TVs, so the price should be more affordable compared to the more popular mid-range LG C4 model, which is priced at around $2,000 for the 55-inch model.

Read also: LG B4 vs LG C4 OLED TV: 6 Differences

#2 Design



Despite being affordable, the LG B3 and B4 look like a premium TV. The design is sleek and modern with slim bezels and a minimalist stand, similar to the mid-range LG C OLED TV models. There are 4 HDMI and 2 USB ports on both models, allowing you to connect the TV to multiple devices such as gaming consoles, streaming devices, and soundbars.

There are 3 sizes available for both models: 55-inch, 65-inch, and 77-inch. You can choose the size that fits your space and budget best. If you want a TV smaller than 55 inches or larger than 77 inches, check out the LG C3 or C4, which offers more size options.

Read also: LG C3 vs LG C4 OLED TV: What's Improving

#3 Picture Quality



LG B3 and B4 have an equal display resolution of 4K Ultra HD with a high native refresh rate of 120Hz, which means you can enjoy smooth and clear motion in fast-paced scenes. Both OLED TVs are also equipped with a range of features that help to deliver stunning picture quality, such as HDR, Dolby Vision, AI Picture Pro, Filmmaker Mode, and so on.

One important difference is that the B4 offers Alpha 8 AI Processor 4K, which is superior to the Alpha 7 Processor that the B3 has, allowing for better picture processing and AI Upscaling. That means, the LG B4 is more refined in delivering better picture quality than the LG B3, especially in terms of upscaling lower-resolution content.

#4 Sound Quality



The audio quality of both OLED TVs should be similar, as they both have a 2.0 channel down-firing speaker system with Dolby Atmos, which provides a more immersive surround sound. One difference is that the B4 can deliver a more immersive audio experience with its ability to up-mix 2-channel audio into virtual 9.1.2 surround sound, while the B3 can only up-mix to virtual 5.1.2 surround sound.

Virtual surround sound feature allows you to enjoy a cinema-like immersive audio experience right from the TV's built-in speakers, so you don't need external speakers or a soundbar.

Otherwise, if you have speakers or a soundbar you want to connect to the TV, both the LG B3 and B4 supports easy syncing via Bluetooth with the Bluetooth Surround Ready feature or LG Sound Sync feature.

#5 Smart Features

LG B3 vs LG B4

LG B3 vs LG B4

Both LG B3 and B4 support voice control and are compatible with Amazon Alexa, Apple Home, Hey Google, and Apple Airplay 2. Both TVs offer various streaming platforms and apps and provide access to free 300+ LG Channels.

One noticeable difference between both models is the upgraded webOS 24 that the B4 runs on, which offers more intuitive and user-friendly navigation compared to the webOS 23 on the B3. The new webOS 24 also offers up to 10 user profiles and improved personalized content recommendations.

webOS 24

webOS 24

The B4 model, just like the more expensive LG's 2024 OLED TV models, also supports Matter, a new smart home connectivity standard that allows for easy and seamless integration across various smart home devices from different manufacturers. With this new Matter support, the B4 can serve as a smart home hub for you to manage and control all your Matter-compatible smart home devices from one place.

Another new feature that the B4 offers is the Room to Room Share feature, allowing you to share content between TVs in different rooms of your home. However, the B4 can only act as a Receiver, which means the B4 can only receive content from another higher-end LG TV like the C4, G4, or M4, but cannot send content to another TV.

#6 Gaming Support

LG B3 vs LG B4

LG B3 vs LG B4

With four HDMI ports that support a high refresh rate of up to 120Hz, the LG B3 and B4 allow you to connect your gaming consoles or PC and enjoy a smooth and responsive gaming experience on your TV. Cloud gaming is also supported, so you can stream games from popular services like NVIDIA GeForce Now or Utomik without needing a console or a gaming PC.

Both OLED TVs are also equipped with many features that make them both great for gaming, such as LG Game Dashboard, Game Optimizer, Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR), NVIDIA G-Sync, and AMD FreeSync Premium, all of which contribute to reducing input lag and motion blur for a smoother and more immersive gaming experience.

Despite sharing many common features, both models have a slight difference in terms of response time. While the B3 has a response time of more than 1 ms, the B4 has a response time of less than 0.1 ms, which means that the B4 can now deliver better gaming experience for fast-paced games with quick movements and action.


Final Thoughts



LG B4 OLED TV now offers better picture processing, improved webOS 24, Matter support, more smart features, and faster gaming response time compared to its predecessor, the LG B3. At an affordable price, this entry-level model is a great option for those who want to experience the stunning picture quality of OLED technology without breaking the bank.

However, if you're on a tighter budget and don't mind missing out on some of the latest features offered by the B4, the LG B3 is still a solid choice.

If you like to read more about Smart TVs, check out our other relevant guides here:

LG G3 vs G4: What's New?

LG M3 vs M4: Wireless OLED TV Compared

LG C4 vs G4: 6 Key Aspects

LG G4 vs M4: Same Except for 3 Things, Consider This!

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