LG 65-Inch Class OLED B4 Series Smart TV 4K Processor Flat Screen with Magic Remote AI-Powered with Alexa Built-in (OLED65B4PUA, 2024)
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AI Verdict
This 65-inch 4K OLED TV with a 120Hz panel and four HDMI 2.1 ports is for gamers and movie watchers prioritizing deep blacks and smooth motion.
This TV is a strong fit for gamers and movie lovers who prioritize picture quality and gaming features. Its OLED panel with perfect blacks, 120Hz refresh rate, and four HDMI 2.1 ports align perfectly with these demanding use cases. The α8 AI Processor 4K and Dolby Vision enhance the visual experience for cinematic content.
If you need significantly brighter HDR highlights for a very bright room, look for OLED models with MLA (Micro Lens Array) technology or higher-tier OLEDs like LG's C-series or G-series.
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Pros
- OLED panel delivers perfect black levels and 100% Color Fidelity for rich, accurate colors.
- Four HDMI 2.1 inputs support 4K at 120Hz, NVIDIA G-Sync, AMD FreeSync Premium, and VRR for competitive gaming.
- α8 AI Processor 4K automatically fine-tunes picture settings based on content type.
- webOS 24 provides a user-friendly interface and access to 300+ free LG Channels.
- 0.1ms response time ensures crisp, smooth imagery during fast-paced action.
- Includes Dolby Vision and Dolby Atmos for an immersive audio-visual experience.
Cons
- Internal 2.0 channel speakers lack the punch of a dedicated soundbar, despite Dolby Atmos support.
- Ethernet port is limited to 100Mbits, not supporting gigabit speeds.
- Some users report the α8 AI Processor can feel laggy for a TV in this class.
- The EARC HDMI port is directly out of the back, making wall mounting potentially awkward.
- HDR brightness is described as decent, but not bright enough for very bright highlights compared to higher-tier OLEDs.
Dimension Scores
The OLED panel delivers perfect blacks, 100% Color Volume, and 100% Color Fidelity with Dolby Vision support.
The 2.0 channel speaker system with Dolby Atmos lacks the punch and immersion of external audio solutions.
webOS 24 is user-friendly, offers 300+ free LG Channels, and includes a 5-year webOS Re:New program for updates.
The 65-inch screen is a popular size, and all four HDMI ports are 2.1, supporting advanced gaming features.
Best For
- Competitive console and PC gaming due to 120Hz refresh rate, 0.1ms response time, G-Sync, FreeSync, and VRR support.
- Movie enthusiasts who prioritize deep black levels and accurate colors in a dark room.
- Users who want a smart TV with a continually updated operating system via webOS Re:New Program.
- Watching sports, where the 120Hz refresh rate helps with smooth motion.
Not Recommended For
- Users who expect a built-in sound system to deliver powerful bass or room-filling audio.
- Bright living rooms where peak HDR brightness is a critical factor.
- Anyone needing gigabit Ethernet speeds for wired network streaming.
Watch Out For
- The EARC HDMI port points directly out the back, which can complicate flush wall mounting.
- The built-in Ethernet port only supports 100Mbits, even when other devices on the same network pull rated gigabit speeds.
- Some users find the α8 AI Processor to be a bit laggy, which can affect navigation speed.
- While the TV supports Dolby Atmos, the 2.0 channel speakers are not powerful enough to deliver a truly immersive audio experience.
Full Specifications
| ASIN | B0CVS18Z6R |
| Brand | LG |
| Wattage | 125.7 watts |
| Batteries | 2 AA batteries required. (included) |
| Brand Name | LG |
| Color Name | Black |
| Resolution | 4K |
| Item Weight | 38.14 Pounds |
| Screen Size | 65 Inches |
| Aspect Ratio | 16:9 |
| Speaker Type | 2.0 Channel |
| Special Feature | Amd freesync, Built-In Speaker, Flat, Game Mode, Nvidia G Sync |
| Special Features | Amd freesync, Built-In Speaker, Flat, Game Mode, Nvidia G Sync |
| Item model number | OLED65B4PUA |
| Display Technology | OLED |
| Product Dimensions | 9.3 x 57.05 x 35.28 inches |
| Connectivity Technology | Bluetooth, Ethernet, HDMI, USB, Wi-Fi |
| Supported Internet Services | Apple TV and more., Disney Plus, HBO Max, Netflix, Prime Video |
| Standing screen display size | 65 Inches |
What Buyers Say
Users are consistently blown away by the picture quality, especially the deep blacks and vibrant colors that OLED delivers, noting a significant upgrade from previous LED TVs. Many highlight the TV's gaming capabilities, praising the 120Hz refresh rate, G-Sync, and FreeSync for smooth, tear-free experiences. While the webOS interface is generally found to be intuitive and snappy, some have reported the α8 AI Processor can feel a bit sluggish. The internal speakers are a common point of contention, often described as lacking power, pushing users towards soundbars.
“Dude, this B4 OLED is insane for gaming, everything just looks so real and smooth, but seriously, get a soundbar because the built-in speakers are just… there.”
Common Praise
- Deep black levels and contrast are transformative for movie watching.
- Colors are vibrant and accurate, making content look lifelike.
- Gaming is exceptionally smooth with 120Hz, G-Sync, FreeSync, and low input lag.
- webOS 24 is user-friendly and intuitive for navigation.
- The Magic Remote offers tactile control and voice commands.
Common Complaints
- Built-in speakers don't deliver powerful audio, requiring a soundbar for better sound.
- The Ethernet port is limited to 100Mbits, not supporting faster wired connections.
- The EARC HDMI port's rear-facing position complicates wall mounting.
- The α8 AI Processor can sometimes feel laggy during navigation.
- HDR brightness is not as intense as higher-end OLEDs or some QLEDs.
Ownership Tips
- Even with the α8 AI Processor, some users still manually adjust picture settings to their preference.
- The Magic Remote's pointer function is a love-it-or-hate-it feature, but voice control is consistently useful.
- The webOS Re:New program means the smart TV features will stay current for years, which is a relief.
- The TV's thin profile makes it look sleek, but also means the internal speakers are physically limited.
Frequently Asked Questions
Does the LG B4 support G-Sync and FreeSync for gaming?
Yes, all LG OLED B4 TVs have NVIDIA G-Sync, AMD FreeSync Premium, and VRR (Variable Refresh Rate) to reduce screen tearing and improve gaming quality.
How many HDMI 2.1 ports does the LG B4 have?
The LG B4 features four HDMI 2.1 inputs, allowing you to connect multiple next-gen consoles or PCs at 4K 120Hz.
What kind of processor does this TV use?
It uses the α8 AI Processor 4K with AI Picture Pro, which identifies content type and automatically fine-tunes picture settings for optimal viewing.
Can I expect software updates for this TV?
Yes, the webOS Re:New Program ensures you'll receive new software updates and feature refreshes for 5 years.
Is the built-in sound system powerful enough?
The TV has a 2.0 channel speaker system with Dolby Atmos support, but user feedback indicates it lacks the punch of a dedicated soundbar.
Buying Guide
When you're looking at an OLED TV like this, you're buying into incredible picture quality, especially for dark scenes. Every pixel lights itself up, so you get true black, not just dark gray. This makes movies and games look way more immersive. Don't get too hung up on peak brightness numbers unless you're watching in a sun-drenched room all the time; OLED's contrast often makes up for it. Also, pay attention to the refresh rate and HDMI 2.1 ports if you're a gamer, as these are crucial for smooth gameplay.
OLED Panel
Unlike LED TVs that use a backlight, each of the 8 million+ pixels in an OLED panel produces its own light. This allows for 'perfect black' by turning off individual pixels, creating infinite contrast and making colors appear more vibrant and accurate. Think of it like having a tiny light switch for every single dot on your screen.
120Hz Refresh Rate & HDMI 2.1
The 120Hz refresh rate means the screen can display 120 frames per second, making motion appear much smoother, especially in fast-paced content like sports or video games. HDMI 2.1 ports are essential for connecting modern gaming consoles and PCs to take full advantage of that 120Hz at 4K resolution, along with features like VRR. It's like having a super-fast highway for your video signal.
α8 AI Processor 4K
This is the TV's brain. It uses artificial intelligence to analyze the content you're watching and automatically optimizes the picture and sound settings in real-time. This means less fiddling with menus and more time enjoying a picture that's tailored to what's on screen, whether it's a movie, a game, or a sports broadcast.
Alternatives
If you need significantly higher peak brightness for a consistently bright viewing environment, look for TVs with Mini-LED backlighting or higher-tier OLED panels that incorporate brightness-enhancing technologies. If you're on a tighter budget and don't need the absolute best black levels, consider a high-quality QLED or LED TV with local dimming.
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