LG B4 & LG B3 share many similarities, but there are also important differences, such as quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the LG B4 rather than the LG B3.
Why Do I Recommend The LG B4?
- The LG B4 has an advanced α8 AI Processor 4K for improved upscaling, more accurate color reproduction, and better motion handling, and a smoother viewing experience compared to the LG B3’s older α7 Gen 5 chip.
- LG B4 features four full-bandwidth HDMI 2.1 ports for connecting multiple high-performance gaming devices or next-gen consoles simultaneously, while the LG B3 is limited to only two.
- It includes Dolby Vision Gaming support for enhanced HDR gameplay that preserves visual quality in real-time, which is not available on the LG B3.
- The LG B4 supports 120Hz Black Frame Insertion (BFI) for reducing motion blur during fast-paced content like sports and action scenes, while the LG B3 is limited to 60Hz BFI.
- LG B4 has a lower input lag in Game Mode for faster response time during gameplay to experience smoother control compared to the slightly slower LG B3.
- It comes with a redesigned dual-foot stand for better soundbar clearance and improved stability to enhance audio placement and aesthetics compared to the B3’s center pedestal stand.
- The LG B4 features updated AI Sound Pro and a 2.2 channel audio system for a more immersive and balanced sound experience, while the LG B3 uses a simpler 2.0 channel setup with older sound processing.
- LG B4 supports the latest webOS 24 platform for faster app access, updated user interface, and future smart TV features, while the LG B3 uses the previous webOS 23 version.
Maybe the LG B3 price can make you comfortable because it’s a little bit cheaper than the LG B4. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.
Side By Side Comparison
| Feature | LG B4 | LG B3 |
| Processor | α8 AI Processor 4K | α7 Gen 5 AI Processor |
| HDMI 2.1 Ports | 4 HDMI 2.1 ports | 2 HDMI 2.1 + 2 HDMI 2.0 ports |
| Peak HDR Brightness (10%) | ~656 nits | ~625 nits |
| HDR Gradient Performance | Improved banding control | Moderate banding |
| Game Mode Input Lag (1080p/4K) | ~9.1–9.7 ms | ~10.1 ms |
| Game Mode Brightness Retention | Maintained brightness | Slight brightness drop |
| Color Volume (Rec. 2020) | Slightly higher | Slightly lower |
| Dolby Vision Gaming Support | Yes | No |
| HDMI Bandwidth | 48 Gbps on all 4 ports | 48 Gbps on only 2 ports |
| WebOS Version | webOS 24 | webOS 23 |
| Bluetooth Version | Bluetooth 5.1 | Bluetooth 5.0 |
| Stand Design | Dual wide feet | Central pedestal stand |
| Available Sizes | 48″, 55″, 65″, 77″ | 55″, 65″, 77″ |
| Black Frame Insertion (BFI) | 120Hz BFI supported | 60Hz BFI only |
| Filmmaker Mode Updates | Yes | Standard implementation |
| Motion Handling (120Hz BFI) | Slightly smoother | Slight flicker |
| Picture Clarity Settings | Improved AI Picture Pro | Standard AI Picture |
| Speaker Channel Configuration | 2.2 channel | 2.0 channel |
| AI Sound Pro | Updated version | Older version |
| Price | Check LG B4 Price | Check LG B3 Price |
What Common Both Can Do?
- OLED Panel with Self-Lit Pixels: Both the LG B4 and B3 use self-emissive OLED panels, delivering perfect blacks, infinite contrast, and precise pixel-level control for vibrant picture quality.
- 4K 120Hz Refresh Rate: Each model supports native 4K at 120Hz, making them ideal for smooth gaming, sports, and fast-moving content.
- HDR Format Support: Both TVs support a wide range of HDR formats including Dolby Vision, HDR10, and HLG, ensuring cinematic color and contrast for compatible content.
- Advanced Gaming Features: They both feature VRR, ALLM, Game Optimizer, and compatibility with Nvidia G-Sync and AMD FreeSync, delivering stutter-free, low-latency gaming performance.
- Smart Features (webOS): The B4 and B3 come with LG’s webOS platform, enabling access to apps like Netflix, YouTube, Prime Video, and support for voice assistants like Google Assistant, Alexa, and Apple AirPlay 2/HomeKit.
- Sound Technologies: Both include Dolby Atmos support for immersive 3D audio, along with eARC compatibility for lossless audio passthrough via HDMI.
- Picture Modes & Protection: Shared features include Filmmaker Mode for director-intended viewing and OLED protection tools like Pixel Refresher and Logo Dimming to prevent burn-in.
- Design Consistency: While stand styles differ, both maintain a slim bezel design, include the Magic Remote, and support wall mounting via VESA.
- Smart Home Integration: Full integration with major platforms and voice control ensures both TVs are smart home-ready from day one.
Common Features
| Feature | LG B4 | LG B3 |
| Panel Type | OLED | OLED |
| Self-Lit Pixel Technology | Yes | Yes |
| Resolution | 4K UHD (3840 × 2160) | 4K UHD (3840 × 2160) |
| Refresh Rate | 120Hz native | 120Hz native |
| HDR Formats Supported | Dolby Vision, HDR10, HLG | Dolby Vision, HDR10, HLG |
| Variable Refresh Rate (VRR) | Yes | Yes |
| ALLM (Auto Low Latency Mode) | Yes | Yes |
| Game Optimizer & Dashboard | Yes | Yes |
| WebOS Smart Platform | Yes | Yes |
| Google Assistant Built-in | Yes | Yes |
| Amazon Alexa Built-in | Yes | Yes |
| Apple AirPlay 2 & HomeKit | Yes | Yes |
| Filmmaker Mode | Yes | Yes |
| Dolby Atmos Support | Yes | Yes |
| eARC Support | Yes | Yes |
| Wall-Mountable (VESA) | Yes | Yes |
| OLED Care (Screen Protection) | Yes | Yes |
| Slim Design | Yes | Yes |
| Magic Remote Included | Yes | Yes |
| Voice Control | Yes | Yes |
| Price | Check LG B4 Price | Check LG B3 Price |
FAQ
Does the LG B4 have better picture quality than the LG B3? Are both LG B4 and B3 true OLED TVs? Do both models support Dolby Vision and Dolby Atmos? Which model has better support for next-gen gaming consoles? Is there a difference in available sizes between the B4 and B3? Do both models support HDMI eARC? Do the LG B4 and B3 support voice assistants? Is there any difference in WebOS between the two models? Can both the B4 and B3 be wall mounted? Is the brightness significantly better on the B4 than the B3? Which TV is better for watching movies in a dark room? Is the stand design different between the two models? Do both models have the same sound system? Which TV is more future-proof? |