If you want the short answer, here it is: the B4 is a good value OLED for people who care more about picture quality than showroom flash. LG OLED B4 is a sensible place to start if you want the OLED look without moving up to a pricier model.
Quick verdict
- Best for dim or moderately lit rooms
- Strong for movies, series, and gaming
- Less convincing in bright family rooms
- Not a great pick if you want big sound from the TV alone
At a glance
| Situation | B4 fit | Why it matters |
|---|---|---|
| Movie night in a darker room | Strong | OLED contrast gives dark scenes more depth and avoids the washed-out look common on many LCD sets. |
| Streaming and casual TV | Strong | Dolby Vision support and wide viewing angles help the picture look consistent from different seats. |
| PS5 or Xbox use | Strong | The B4’s gaming-friendly layout and high refresh support make it a clean home for modern consoles. |
| Bright room with windows | Weaker | The B4 does not have the extra brightness headroom that helps premium sets stay punchy in daylight. |
| No soundbar planned | Weaker | Thin TV cabinets usually leave built-in audio sounding modest rather than full. |
| Static desktop or news use for hours | Mixed | OLED works well, but long stretches of fixed content ask more of the panel than mixed viewing does. |
Why the B4 works so well for the right buyer
The B4’s biggest strength is the part that matters most on a living room TV: contrast. Dark scenes look rich instead of muddy, black bars stay black, and the picture has the kind of separation that makes streaming drama and movies feel more expensive than the spec sheet suggests. That is the core OLED appeal, and the B4 keeps it intact.
The second big win is viewing angle. If your household does not sit in one perfect center seat, the B4 has a real advantage over many LCD sets. People sitting off to the side do not lose the picture as quickly, which makes the TV easier to live with for family rooms, shared apartments, and casual gatherings.
Gaming is another clear positive. The B4 belongs in the group of TVs that can handle modern consoles without feeling dated. High refresh support and gaming-focused inputs matter because they let you connect a console, a streaming box, and a soundbar without turning the back of the TV into a constant cable swap. For buyers with both a PS5 and an Xbox Series X, that flexibility is a real part of the value story.
LG’s webOS platform also helps the B4 feel like a normal TV rather than a gadget project. It is familiar, widely supported by apps, and easy enough to move around. The trade-off is that the interface is not the cleanest or quietest smart TV home screen around, so buyers who want a very minimal interface may still prefer a different brand’s software.
Where the B4 gives up ground
The B4’s main weakness is brightness, not picture quality. That difference matters. In a darker room, the image looks crisp and balanced. In a brighter room, the TV has to work harder to hold its own against sunlight and reflective surfaces, and that is where step-up OLEDs and bright mini-LED sets look more forceful.
The other weak point is built-in sound. Thin TVs are not where you go for deep bass or real scale, and the B4 is no exception. Casual TV watching is fine, but if you care about movie dialogue, impact, or fuller sound, a soundbar changes the experience more than almost any other accessory. That is true of many OLED sets, not just this one.
OLED also asks for a little more discipline when the screen shows the same thing for long stretches. Sports tickers, game HUDs, and desktop-style use are not deal-breakers, but they do make mixed use the smarter long-term habit. If your TV often sits on a static interface for hours, a mini-LED alternative is easier to relax about.
Sizes and room fit
The B4 comes in 48, 55, 65, and 77 inches, which gives it a wider range than a lot of value TVs. The 48-inch model makes sense when you want a smaller OLED for a bedroom, office, or compact den. The 55-inch size is the easy default for many apartments and smaller living rooms. The 65-inch model is the sweet spot for a main room, while the 77-inch version is for buyers who want a more cinematic setup and have the wall space to match.
Room light should guide the size decision as much as the viewing distance. A bigger screen does not solve a bright room. If the TV faces windows or stays lit by overhead light for most of the day, the B4 will still be fighting the room rather than owning it. In a darker setup, the bigger sizes can look impressive fast because OLED contrast scales up so well.
How it compares with the main rivals
Against the LG C4, the B4 is the value-first choice. The C4 has more brightness headroom and a more premium overall ceiling, which helps if you watch a lot in mixed lighting or want extra HDR punch. The B4 keeps the essential OLED experience and gives up the extra flash that pushes the C4 higher.
Against the Samsung S90D, the split is more about format support and room behavior. Samsung tends to chase a punchier presentation, but it does not offer Dolby Vision. If your household streams a lot and you want that format support, the B4 has a cleaner story. If you want a brighter, more aggressive image and Dolby Vision is not part of your viewing life, the Samsung stays in the conversation.
Against the Samsung QN90D, the decision is easier. The QN90D makes more sense when the room stays bright and you want the screen to hold up in daylight. The B4 makes more sense when you can control the light and want OLED contrast to be the focus.
Against Sony’s A80L, the B4 keeps the value edge and the gaming-friendly angle. Sony still has a strong reputation for cinematic tuning, so buyers who care a lot about motion and processing may still compare the two closely. The B4 wins when price, OLED contrast, and game use matter more than brand preference.
Who should buy the B4
Buy the B4 if your TV lives in a room where you can dim the lights, shut the curtains, or at least avoid glare most of the time. Buy it if you watch a lot of streaming shows and movies and want Dolby Vision support in the mix. Buy it if you game on modern consoles and want a TV that can handle that without fuss.
It also makes sense if you are replacing an older LCD and want a clear picture upgrade without jumping into a premium price tier. The B4 is especially appealing in mixed-use homes where the TV does a little bit of everything but does not need to win every category on paper.
Who should skip it
Skip the B4 if the room is bright most of the day and you cannot really control the light. Skip it if you want the TV speakers to carry movie night on their own. Skip it if your main use is long hours of static desktop content, sports tickers, or a setup that leaves the same on-screen elements in place all day.
In those cases, the better answer is usually a brighter OLED step-up like the C4 or a mini-LED set such as the QN90D. That is not a knock on the B4. It is just the difference between a TV that is tuned for OLED strengths and one that is built to fight harder against the room.
Final verdict
The LG OLED B4 earns its place by doing the important things well. It gives you the deep blacks, wide viewing angles, and gaming support people buy OLED for in the first place, then keeps the package at a friendlier level than LG’s higher models. It is not the brightest TV in the room, and it is not the best choice if you want to rely on built-in audio, but it is a very easy TV to like in the right space.
For buyers who want a value OLED for movies, streaming, and gaming in a controlled-light room, the B4 is one of the clearest choices in its class. For bright rooms or sound-first setups, move up to a brighter OLED or a mini-LED alternative instead.