Our Verdict
The LG UK6300 is a decent TV for mixed usage. It has decent picture quality and a passable viewing angle, but it isn't able to overcome glare in a bright room and has poor dark room performance. It has a good smart interface and extraordinarily low input lag.
- Feels responsive with low input lag
- Short blur trail
- Blacks appear gray in a dark room
- Less accurate RGBW pixel structure
Not a good choice for movie lovers. It doesn't get very bright. Blacks aren't truly black and it has poor uniformity, so letterbox bars look cloudy. Subtitles don't look good due to the lack of a local dimming feature.
The LG UK6300 is good for watching TV Shows. Low frame rate content looks great. The TV isn't bright enough to be used in a bright room as it can't overcome glare, so daytime viewing is somewhat compromised. It has a good smart interface with a wide assortment of apps available for watching streaming TV.
Decent TV for watching sports. There is some dirty screen effect visible in the center of the screen, but it shouldn't be very noticeable. It has a good viewing angle great for game day parties, although it isn't very bright which might be an issue for daytime games in a bright living room. It has a good response time, so fast-paced sports don't have much motion trail.
Good TV for video games, mainly due to the excellent low input lag when game mode is used. The TV has a good response time, so there is very little motion blur. It has decent picture quality, but some games suffer from the low contrast ratio.
Disappointing HDR Movie experience. It has a poor native contrast and no local dimming feature. It doesn't support a wide color gamut and can't produce deep dark colors. There is almost no advantage to watching in HDR on the UK6300.
Decent HDR Gaming performance. Exceptional low input lag, and the response time is good, so there is very little motion trail. The mediocre peak brightness and lack of a wide color gamut means the HDR effect is not very noticeable.
Decent PC monitor. It has excellent low input lag and a good viewing angle. The response time is good so there is little motion trail. The less accurate RGBW pixel structure means that text appears jagged as seen on the UH6500, even though the TV supports Chroma 4:4:4.
Changelog
- Updated May 21, 2020: Converted to Test Bench 1.5.
- Updated Feb 21, 2020: Converted to Test Bench 1.4.
- Updated Mar 04, 2019: The VESA mount was incorrectly listed as 400x400. It is actually 200x200.
- Updated Feb 28, 2019: Converted to Test Bench 1.3.
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Differences Between Sizes And Variants
We tested the 43" (43UK6300PUE). For the most part, we expect our review to be valid for the 49" (49UK6300), 55" (55UK6300) and 65" (65UK6300).
The UK6570 has been released in 70", 75" and 86" sizes. We haven't tested them and don't know how they perform or if they are the same panel as the UK6300. The 86" has a 120 Hz native refresh rate.
| Size | US | Canada | UK | Variant |
| 43" | 43UK6300PUE | 43UK6300BUB | 43UK6300PLB | 43UK6090PUA |
| 49" | 49UK6300PUE | 49UK6300BUB | 49UK6300PLB | N/A |
| 50" | 50UK6300PUE | 50UK6300BUB | N/A | N/A |
| 55" | 55UK6300PUE | 55UK6300BUB | 55UK6300PLB | 55UK6090PUA |
| 65" | 65UK6300PUE | 65UK6300BUB | 65UK6300PLB | 65UK6090PUA |
| 75" | N/A | N/A | N/A | 75UK6190PUB |
There is a 50" variant with a VA panel available in some areas. We expect this model to have a much better native contrast and black uniformity, but the viewing angle won't be as good.
If someone comes across a different type of panel or if their LG UK6300 doesn't correspond to our review, let us know and we will update the review.
Update 12/05/2018: LG has recently released the UK6090 (UK6090PUA), which appears to be a minor variant of the UK6300. They appear to perform similarly, but there may be some minor differences we are unaware of.
Popular TV Comparisons
The LG UK6300 is a very basic entry level 4k LED TV, but it doesn't offer great value compared to the competition. There will almost always be something better for a similar price. See our recommendations for the best budget TVs and the best TVs under $500.
The LG UK6300 is slightly better than the LG UJ6300. The LG UK6300 is better for watching TV shows and sports as it can get a little brighter, whereas the LG UJ6300 has a marginally better native contrast ratio that gives it better blacks in dark rooms.
The LG UK6300 and its replacement model, the LG UM6900, are very similar overall. The UK6300 we tested showed signs of temporary image retention but has better reflection handling. The UM6900 we tested shows no signs of temporary image retention but otherwise performs very similar to the UK6300.
These two TVs have different panel types. For a room with a wide seating arrangement, the LG UK6300 might be a better choice if you'll often be watching TV from the side. However, the Samsung NU8000 is a much better choice if you'll be watching from straight in front. It can get much brighter to fight glare and can also display deeper blacks thanks to its high native contrast ratio. The NU8000 has better gray uniformity and faster response time which makes it great for watching sports. Finally, the NU8000 has FreeSync support and low input lag with motion interpolation, which is great if you are a gamer.
If you've got a bright room with wide seating, then the LG UK6300 is a better choice due to the better viewing angles. But for a dark room with seating directly in front, then the Samsung NU7100 is better due to its higher contrast ratio and better black uniformity. The LG UK6300 also has better reflection handling, and you can place it in a room with many light sources, whereas the Samsung NU7100 can get brighter to fight glare in a bright room.
We buy and test dozens of TVs yearly, taking an objective, data-driven approach to deliver results you can trust. Our testing process is complex, with hundreds of individual tests that take over a week to complete. Most of our tests use specially designed test patterns that mimic real content, but we also use the same sources you have at home to ensure our results match the real-world experience. We use two main tools for our testing: a Colorimetry Research CR-100 colorimeter and a CR-250 spectroradiometer.
Test Results
Older Test Bench: This product has been tested using an older TV test methodology, before a major update. Some of the test results below aren't directly comparable with other TVs. Learn more
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