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SharkT
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This is definitely subjective so it really depends on your personal preferences and viewing conditions, so I’d try both and see what looks best to you. Most people prefer BT.1886 these days, but 2.4 could also be a good choice if you’re in a moderately-lit room. 2.2 would be better for a bright room.
Hi i have the same problem with my LG B4 have You manage to fix it?
We’ve just released a new video that mentions the LG B4 OLED here.
Back when LG launched the 42 inch C2 they claimed that the pixel pitch of the smaller models reduced the brightness compared to larger sizes. Does this effect work in reverse where very large models such as the 77, 83 or even 97 inch are a little brighter? I’m thinking of buying the 83 inch B4.
Sadly, no. It’s not the pixel pitch itself that causes this brightness limitation, LG has simply reached the limits of what they can do with the 42" and 48" sizes. The pixel pitch is technically the reason behind this, but it’s more a question of needing to meet a certain minimum threshold to be able to push the panels harder.
Hello, we currently own a Lg C2 65 inch. We are considering buying a 77 inch Oled. Comparing the reviews specs at your web site between the C2 vs B4. It appears to be a slight upgrade going from a C2 to B4. Just want to ask your thoughts in case I’m missing anything? Tv is only used for streaming. No gaming.
I am fairly certain that the 83" version of the B4 uses the Alpha 9 Gen 7, and also supports 144hz VRR. See LG’s page for that info, they also answer a question at the bottom that basically confirms what I said as well. Another thing I noticed is the 83" also has 3 USB ports, while anything smaller does not. It really seems like the 83" is a model of its own almost. Just a hunch but I’m betting these 83" B4’s are 83" C4’s that didnt make the grade.
curious about the same.. seems hard to get reviews of 83” Oleds. There’s almost no differences on LGs site between the C4 and 83 b4 except color booster. I wonder if it’s the same panel.
Hey there! Thanks for pointing this out! It certainly looks like the 83" B4 is more in line with the C4 due to the a9 processor and 144Hz support. I’m gonna look into this a bit more and I’ll update our B4 review with any additional information I find. Thanks again!
Update: We added some additional information on the 83-inch model in the Differences Between Sizes And Variants section.
I don’t think you’re missing anything, that would be a very slight upgrade at best. Some of the measured differences between them are within the margin of manufacturing tolerances, so it could go either way.
Got another B4, came with a dead pixel, warranty is coming… It’s a gaming household, so girlfriend is gaming on the older b4, but the brightness is alot different… I double checked all the setting even the xbox, and all are the same. Does xbox series S handle HDR differently than Series X ? What the hell is going on ?
EDIT : Found IT, remembered I bought a low quality power strip, and it gave those simptoms to the tv… Never happeneed. Before. But nonetheless, what values do you guys put on the xbox hdr menu ? I got the first at 20 And the other ones at 4000 Is it good ?
You have to enable HGiG in the Tone Mapping settings for console HDR gameplay. The TV can’t receive HDR metadata from the console so it’s defaulting to a 4000 nit tone curve hence the calibration screen symbol only disappearing at 4000 nits. The black window screen must be set to 0 nits, the full white screen can be set to 300 nits and the 10% window screen should be set to 700 nits.
Update: We retested the TV’s Xbox Series X|S Compatibility using firmware 23.20.20 and 23.20.24 and confirmed that there are issues using a combination of Dolby Vision and VRR.
Hello again guys, well my problem of low brightness came back. So I’ve changed everything on the electricity side. The TV after sometime shows low brightness, I take it out of the power strip, plug it back in and it just works fine. After sometime I have to redo the process of unplug and plug. What do you guys suspect it is ? It sometimes doesn’t detect hdmi sources, probably wrong handshake.
I just got the B4 and I don’t understand why anyone thinks this is a good TV. It’s probably because I don’t watch movies and have been watching a plasma TV for the last 20 years. I watch news and sports and I want to turn on the tv and my last viewed channel come on. I have Xfinity and have changed the box to the highest quality picture settings and it is still blurry and worse than my Plasma. I don’t want to fiddle with settings or apps or other nonsense. Furthermore the B4 is dimmer than my Plasma. I think I am too old for this modern technology that just seems to waste time.
Definitely have to fiddle with the settings and turn power saver/auto settings off. I just got a B4 installed yesterday replacing a Panny ST50 plasma and the B4 is definitely brighter than the plasma, after fiddling. The ST50 looked better with some YouTube TV channels because it scaled to HD not all the way to 4k but overall it’s an upgrade & especially of course with 4k & UHD media. The audio is definitely a step down - the ST60 has a small woofer on the back panel providing some bass, but we have a receiver with LCR speakers and a Velodyne sub so that’s not really an issue. I have a Panasonic Ub820 connected to the B4 and played a DVD on it, and the scaling from the Ub820 made it look as good as the HD bluray version and better than on the ST50.
It’s so weird to me how you guys don’t mention the crazy dithering this monitor has makes everyone look grainy. Don’t not buy a lg oled monitor till they fix this
Yeah something happened to me it’s something called dithering it makes eventing look grainy and fuzzy especially dark colors
Can anyone tell me why the sharpness is recommended to be +16 in the calibration settings? Most of the reviews for similar LG OLED models recommend leaving it at +10 so I’m curious as to what makes the B4 image different. Thanks!
Most people aren’t videophiles and watch video sources lower than 2160p so it’ll be more pleasing but the most neutral setting will be 0 if you want the least processing.
I just got this TV, and see the same issue. Flips out quite a bit - sometimes it will constantly screen flash for upwards of 30 seconds before finally obtaining a lock when returning from running a game to the PS5 dashboard.
I think I found the problem off my tv… ABl is kicking in all the time, by turnig it off and on of eletricity, it probably resets…. Is there anyway that I can get less ABL (auto brightness limiter) ? This is very annoing.
Adjusting the Peak Brightness setting to ‘Low’ or ‘Off’ will reduce the ABL, but it does so by limiting the peak brightness of the display, so it’s not a perfect fix. Other than that there’s not much you can do about this.
This product has been merged with LG OLED83B4P 83 inch Class B4 Series OLED 4K HDR. Follow the discussion here.
Our calibration settings used to only mention the neutral setting, but since we added the Sharpness Processing test we’re now calibrating the TV for the best setting. The ‘16’ setting on this TV is similar to other LG OLEDs, including the B3.
The G4 was found to have always active dynamic sharpening and I assume this applies to the M4 and maybe the C4 but does the B4 also have this?
Figured out how to fix it, or someone else did on Discord. You have to make sure all your modes are set to Game Optimizer, including when there’s no input signal to the TV. That fixed the issue for me. Here’s the thread where I posted about it: https://www.reddit.com/r/LGOLED/comments/1gah78d/comment/m14zjdi/
hi there, i manual of tv 65 inch we can see when tv installed on stands, the feet lift the TV about 2.5 inches above the table but in your measurement it is 3.5 inch, how do you explain this? which one is correct?
The 2.5" mentioned in the manual is from the table to the very bottom of the TV. In our reviews we mention the height from the table to the screen itself instead. We feel this is the more useful measurement as it doesn’t matter if a soundbar is blocking the TV’s bezel.
I have the 65 inch wall mounted. Directly in the middle of the lower bezel what looks like the RF sensor sticks out about ½ “ below the bezel - shouldn’t that reduce the published clearance distance for those who use the legs on a stand and want to use a soundbar?
The remote doesn’t require direct line of sight to the sensor, it connects via Bluetooth. Most people won’t have the soundbar directly next to the TV either, so there’s enough space that on TVs that use IR it’ll still work.
Didn’t know that. Thanks!
Hi all Got 55’ OLED55B42LA recently and I’m just completely overwhelmed. I can see a difference between my old LED and this one but it’s far from being blown away. Sometimes picture looks a bit grainy/noisy. What could be causing it? What should I set Sharpness to? Some places say 0, some other number. We mainly watch Netflix, Prime or Disney
We haven’t seen an always active dynamic sharpening feature to be the case on the G4 or any other model, such as the C4 or B4. However, if you are referring to the “Super Resolution” feature available on these models, this feature does, in theory, work dynamically based on content and resolution. That said, it is possible to disable this behavior by turning off the Super Resolution setting in the TV’s menu. Would you be able to share your source about active dynamic sharpening?
So you’ll need to pick a recorded show that has your problem imaging and play it over and over again as you adjust settings. Going into Picture then Advanced Settings then Clarity you can adjust Sharpness to your liking. I have it @ 20 then I have all the other options on Low. Real Cinema shows On and TruMotion is on Cinematic Movement. We sit about 12 ft away from out 65" screen and don’t see any dithering unless i walk up to just a few feet from the screen. I also took down Peak brightness from High to Medium and Oled brightness down a bit to 90 - these SDR related adjustments work for us but may not for you. It does take time but you need to go thru the options and figure out what works for you. We got ours last week and haven’t gone thru the process with HDR content yet.
HDTVtest tested the G4 in multiple modes with all sharpening and super resolution options disabled using a test pattern and discovered the dynamic sharpening. It’s a feature found in high end Sony televisions as well. Since the the B4 uses a chipset lower than the C4, let alone the G4/M4, I wanted to know if it was present on the B4.
I’ve been waiting a long time for an affordable OLED that has at least 250 nits of sustained brightness in a 100% window to use as my PC monitor. Looks like B4 has finally reached that level. Do the 48" inch models have the same level of brightness (and without having the automatic dimming problem while opening windows and browsers with max white areas)?
Anyone experiencing luminance overshoot on the B4?
No, the smaller sizes are a bit dimmer overall, as LG can’t quite squeeze the same peak brightness out of the higher pixel density of those units.
Bruh lmfao, does that mean LG’s Z series has always been less bright than others? The 48 inch A, B and C series have about 92PPI while even the largest 88 inch has 100PPI.
Unfortunately, we’re unable to validate this at the moment. However, given that the B4 uses a lower-tier chipset compared to the G4 and C4, it’s highly unlikely that it would exhibit similar always active dynamic sharpening behavior.
We’ve never tested a Z series model, so we just don’t know for sure. The Z3 does use MLA, so it should still be bright TV, but some other reviewers have said that it’s quite a bit dimmer than the G3.
Does this review and results apply to the 48" as well?
The 48" is likely slightly dimmer, but otherwise yes.
Update: Added a link to our new Best Bedroom TVs recommendation article in the Compared To Other TVs section.
So all B4 TVs have really good calibration out of the box?
We don’t know if they all do, but we expect most of them to be similar to the one we tested as LG usually has a pretty good factory calibration.
Hi, how much dimmer would you say the B4 48 inch model likely is? Would it still be able to provide a decent HDR experience in a dim room?
For reference, HDTVtest measured the 65 inch C3 at 821.24 nits on a 10% window and 157.18 nits on a 100% window but 678.71 nits at 10% window and 106.71 nits on 100% window for the 42 inch C3.
So it would be around 100-150 nits less? Would this still provide a good HDR experience you think?
We don’t know for sure as we haven’t tested one, but possibly about 20% dimmer. It would still provide a good HDR experience in a dim room, no doubt about it.
Thank you! Would all other results in this review likely be the same compared to the other sizes?
In a dim room it should be fine. Most scenes will look normal, 600 nit mastered titles especially, 1000 nit titles won’t look too impactful but fine however 4000 nit mastered movies will likely look very compressed but there’s not that many anyway.
Thanks! I’ve never really even seen HDR before, so I have nothing to compare it to, lol. I’m coming from a 14 year old Panasonic ST30 Plasma, which I think is a pretty dim display by modern standards these days, so hopefully I won’t be disappointed.
I understand. Some of the most impressive displays for watching HDR are modern smartphones like the Galaxy S25 or iPhone 16 and they’re calibrated excellently too if you intend to use them as reference.
Ok, thanks!
For the most part. A few things like color volume will also be affected by the lower peak brightness, but everything else should be about the same.
Alright, thanks for the info and your time Adam, you guys do great work here! :D
In comparison to C4 you guys showed that most of the things are comparable between B4 and C4 …except from picture quality perspective the only major different is HDR brightness where B4 is 7.7 vs C4 - 8.3 rating. How big of deal is this? My room is decent brightness.
The peak brightness isn’t a huge deal, but the difference in screen coating is. I have a B4 and C3 and I definitely notice reflections more on the B4. The peak brightness difference is noticeable, but the B4 is still plenty bright enough that visibility isn’t an issue during the day.
Thank Adam for sharing.
Hey guys, I’m noticing some pretty severe tint when off angle from this TV… I would say even being slightly off center makes the colors start to shift towards green. Sitting about 5-6 feet from the 48 inch B4, I can literally make one side or the other look green just from moving my head around a bit. Laying in my bed, at like a 40 degree angle or so, half the screen looks green, and sitting up at about a 45 degree angle makes most of the screen green. Even head on, I can see some greenish tint on the edges of the screen at times. Is this normal? I see you guys mentioned it in your review, but does it vary from unit to unit? Could I potentially get one with less noticeable tint by doing an exchange? The one I saw in the store didn’t seem to have this, at least.
Unfortunately, this is a pretty common issue with the 2024 models, but it’s not new, either. It varies between individual units, and it sounds like you got a bad one. We’ve been running an investigation into this for a few months, you can read more about it here.
Thanks for the response, Adam! I guess an exchange would be a good idea? I’ll try that and go from there. It’s really a shame that something like this happens just when I finally got to make the jump to OLED from my old TV. :(
Yeah, if it’s that bad I’d definitely look into an exchange. Definitely disappointing to have to go through this, hope it’s not too much of a hassle for you :|
It actually isn’t, I got free installation from Best Buy included with my purchase, so they will be taking care of everything on the exchange. I did actually go to the store and check out the OLEDs there, included my model, and none of them had this issue as far as I could tell, so yeah, I think I got really unlucky here. Anyways, I did want to say I really appreciate you taking the time to respond to these comments here, so thank you for that. :)
We bought a 65" B4 in December and have not noticed much off angle tint, even at severe angles. It’s above our fireplace so it’s above our sitting position a bit and 10ft away. But even if I stand next to it the image looks OK, though not quite as good as from 45 degrees.
Yeah, I think some degree of off angle color shift is normal. This isn’t that. This is the whole TV going full Hulk if I’m like 10 degrees off center, lol. Like I said, I can see some on the edges even viewing the TV straight on, and make the “greening” as I call it move around just by moving my head. It is bizarre, man.
Does the Xbox Series X still have an issue with the new firmware 23.20.27?
Last mention was last year in previous firmware.
“Updated Nov 22, 2024:
We retested the TV's Xbox Series X|S Compatibility using firmware 23.20.20 and 23.20.24 and confirmed that there are issues using a combination of Dolby Vision and VRR.”
Thanks
Yeah I just rechecked this with my personal B4 and can confirm this is definitely still an issue. Series X and TV are completely up to date and it’s still flickering constantly and redoing the HDMI handshake, causing black screens.
Hey Adam, does LG usually have a good track record with updates and bug fixing? My first impressions of the LG ecosystem aren’t great, unfortunately. Both Boost Mode on PS5 and Dolby Vision on Xbox are bugged on this TV and just flicker endlessly, and I actually just read on Reddit that they pushed an update a little while ago that completely broke VRR on a lot of older OLED models too. :(
They’ve released a few buggy updates in the past, causing some issues with game mode like you mentioned, and in other cases causing some minor picture processing issues. They’ve usually been pretty good at fixing these, though, and I know they take user feedback very seriously. Some impressive features have been added to their TVs over the years just because users asked.
I exchanged my TV, and I can confirm that this green tint is indeed a panel lottery thing. I’d say the difference between my two sets is probably comparable to the difference RTings noticed between the B4 and C4 with regards to the tinting. I’d say it’s present, but probably about 50% better. Unfortunately, the new set has some absolutely horrendous vertical banding as well, so I would say if you get a really green set and mostly watch from the front, because careful about doing exchanges. :(
Glad to hear the new one’s better. It’s quite possible that the vertical banding will disappear, as these sets do have a warm up period where things tend to shift and adjust a bit. I’d look at it again after 100-200 hours of usage.
Thanks Adam, and yes, it has already cleared up considerably. :D
My C1 OLED has some burn in & I need to decide on which TV to buy next.
α9 Gen4 AI (C1) Vs α8 AI (B4) processor: will the B4 processor be just as good as the C1 Processor?
Should I consider the U7N over the B4?
Hello!
Help with personalized buying advice is something our experts offer only via our insider forums. We do have lots of self-service tools and recommendation articles that should be helpful as well though!
Hello, 2 questions if anyone can answer.
Is the B4 48" as bright as the larger models? Asking as the C4 48" and C4 42" have lower brightness than their larger counterparts so wondering if this is the case with the B series as well.
Also if the B4 48" is indeed as bright as the larger models, does this mean it is brighter than the C4 48"? The 42" C4 has a score of 6.4 for SDR brightness and 7.2 for HDR brightness whereas the B series has 7.7 score for SDR brightness & 7.7 for HDR brightness. I’m assuming the score for the C4 42" also applies to the C4 48" so this would mean the B4 48 is indeed brighter than the C4 48. Thanks
All 42 and 48" OLEDs, regardless of brand, are dimmer than the larger versions. 2024 models in those two sizes are a bit brighter than 2023 and older, but they’re limited in peak brightness by the size of the panels. LG Display, the panel manufacturer, hasn’t been able to implement some technology improvements due to how close the pixels are. You also can’t compare the scores between the 42" C4 and the larger B4, as our TV and Monitor testing and scoring methodology are different, and the scores aren’t comparable. The 48" B4 is not brighter than the 48" C4.
That’s odd, the review for the B4 says that the results for the 65 inch model are also valid for the 48, 55 and 77 inch models, implying that the 48 inch B4 is in fact as bright as the larger models. It is only in the C4 review where it says that the results for the larger models are not valid for the 42 & 48 inch models as they lack the brightness booster technology.
Looking on LGs website this is also the case where the B4, unlike the C4, has the same specs across all sizes including the 48 inch model
That’s a mistake on the B4 review, we’ll update it shortly. Absolutely all 42" and 48" OLED panels are dimmer than their larger counterparts. As I mentioned above, this is confirmed by LG, and it’s a limitation of the panels themselves. They were able to squeeze a bit more out of the 2024 models than older panels, but they’re still dimmer. LG doesn’t think they’ll ever be able to get much more brightness out of these panels, so for brighter small TVs we’ll need to wait for a new technology like a tandem OLED stack.
Thanks as always for your fantastic and in-depth reviews, RTINGS! Thanks to your detailed review, I picked up the 48-inch version of this TV for $599 new and added a 5-year warranty that covers everything including burn-in. I previously have only sworn by Sony TVs for their durability and reliability, however as my first OLED TV this set has been jaw-dropping and a great pairing with my sound system for gaming in all consoles and movies. Here’s to hoping LG is a reliable/durable brand as well (but if not, that’s what the extended warranty is for 😜).
Is B46LA as same as B4PUA ?
Yes.
Update: We converted the review to Test Bench 2.0. With this new methodology, we’ve added new tests to expand the scope of our testing, adjusted our scoring to better align with current market conditions, and added performance usages that group related tests together to give more insight into specific aspects of a TV’s performance. You can find a full list of changes in the TV 2.0 changelog.
I use my 65" B4 in a bright room with windows on 3 sides. It holds up well to this bright environment and hasn’t changed its performance even after you changed it’s bright room evaluation score!
Hey all,
Just got the LG B4 and colours are insane. Been trying to game on it but I do feel some input delay. Tried ALLM and still feels slow compare to my monitor (1080p 390Hz)
Is there something I am missing, or is this a normal thing for a TV?
Thank you all in advanced!
Hey! The picture quality on the B4 is excellent and those colors definitely pop! At 120Hz, the B4 should have pretty similar input lag as most monitors at 120Hz. However, if you were using your monitor at a refresh rate above that, it likely had lower input lag. To get the lowest possible input lag out of the TV, make sure you’re using the Game Optimizer and you have Prevent Input Delay set to ‘Boost’. There’s also external factors that can cause more input lag, like if you’re using a wireless controller. Thanks for reaching out and I hope that helps!
Hello, I just received my B4 screen. When I play on Xbox, the VRR flickers whether it’s HDR or SDR. Is this normal?
Try disabling Dolby Vision on your Xbox. This issue popped up a few months ago and only happens with the Xbox. I have a B4 and have the same problem, but disabling DV fixes it for now.
Hello, does anyone know what the SDR peak brightness is in game optimizer mode? Also for SDR content does anyone know what OLED pixel brightness setting roughly corresponds to 100nits in a nearly pitch black room for both game mode and non-game mode?
Does anyone know how the LG B4 compares to the W-OLED version of the Samsung S90D specifically? They’re the ideal size and price I’m looking for but I can’t find any direct comparison. I’m mainly looking to use it for gaming if that matters. Any information would be appreciated.
Hello! Help with personalized buying advice is something our experts offer only via our insider forums. We do have lots of self-service tools and recommendation articles that should be helpful as well though!