This tv has been discontinued.
It was replaced by the LG SJ8500
The LG UH8500 4k HDR TV doesn't have revolutionary picture quality, but it is still the best LED TV from LG that we have reviewed so far. It even improved on the already great WebOS smart platform, which is a nice bonus. Like other TVs from LG, it's a good pick for a living room with seating on the sides of the TV. Unfortunately, the picture isn't the best in a dark environment.
- Wide viewing angle
- Good for sports and video games
- Great WebOS 3.0 smart platform
- Sub-par picture quality in a dark room
- Peak brightness could be better
The LG UH8500 is a nice looking TV. Its recess glass, shiny metal stand and its completely white back are some of the details that makes it stand out. There is a high end feel to it.
The stand is made of heavy stainless steel and has a handy space in which to hide a few cables, for a clean look.
Footprint of the 55" TV stand: 33.9" x 15.4"
Another LG TV with a fully white back cover. It shouldn't be seen in most cases, but it's nonetheless original and noteworthy. It might matter more in some rare room setups where the TV sits in the middle of a room.
The glass sits above the borders. This gives the LG UH8500 an interesting look when viewed from up close. The pixels of the screen don't start right at the edge of the borders, though - the edge and the pixels are separated by a black space.
Except for in some dark scenes, the LG UH8500 delivers good picture quality, with rich colors, for a wide variety of content. It is also HDR-ready and looks decent for this specific kind of content. It doesn't have any issues with judder. Lower-resolution content, like DVDs, also look good.
1188 : 1
This TV has an IPS panel, and so isn't able to produce deep blacks. Compared to other IPS TVs, it managed to do a little better than average.
We set local dimming to 'High' for this test, but we found that it darkened the dot too much. For most content, the 'Low' or 'Medium' value of 'LED Local Dimming' would appear more useful, in that it will not darken small highlights. Overall though, the dimming performance is really poor.
SDR Real Scene Peak Brightness
SDR Peak 2% Window
SDR Peak 10% Window
SDR Peak 25% Window
SDR Peak 50% Window
SDR Peak 100% Window
SDR Sustained 2% Window
SDR Sustained 10% Window
SDR Sustained 25% Window
SDR Sustained 50% Window
SDR Sustained 100% Window
SDR peak brightness for the LG UH8500 is bad. The UH8500 can't get brighter than 300 cd/m², and the local dimming also dims too much the 2% window, which is a bit disappointing for this LED TV, since it is in the high end of LG LED TV lineup.
HDR Real Scene Peak Brightness
HDR Peak 2% Window
HDR Peak 10% Window
HDR Peak 25% Window
HDR Peak 50% Window
HDR Peak 100% Window
HDR Sustained 2% Window
HDR Sustained 10% Window
HDR Sustained 25% Window
HDR Sustained 50% Window
HDR Sustained 100% Window
Update: Retested with a HDR signal and local dimming 'High'. It got a bit brighter, but it still isn't a very bright TV as far as HDR goes.
As most other LED TVs, gray uniformity is bad. At least, there is no obvious large banding issues so panning shots over playing fields shouldn't be much bothering.
Native Std. Dev.
The LG UH8500's black uniformity is decent, without any obvious clouding or light bleeding.
The picture above shows the TV fed with a 10 bit input signal. Our 10 bit gradient pattern isn't displayed perfectly, showing some minor color gradation issues, but it is still a lot smoother than when the TV is fed with an 8 bit signal. 10 bit HDR content should then be free from obvious banding.
DVDs looks good when upscaled and keep a fair amount of details.
Cable TV looks very good on the LG UH8500.
Blu-rays looks very sharp and crisp when played on this LG TV.
4k native content looks very good without any image quality issues.
The LG UH8500 offers the option to output a wider color gamut in all of its picture modes. It will be set to 'Wide' automatically when in the HDR picture mode. Unfortunately, even with the 'Wide' setting, the range of color doesn't increase much. TVs with higher DCI P3/Rec 2020 numbers are going to be better for HDR.
Normalized DCI P3 Coverage
10,000 cd/m² DCI P3 Coverage
Normalized Rec 2020 Coverage
10,000 cd/m² Rec 2020 Coverage
The UH8500 has good performance for DCI-P3, but at very high and very low luminosity colors lose their saturation.
IR after 0 min recovery
IR after 2 min recovery
IR after 4 min recovery
IR after 6 min recovery
IR after 8 min recovery
IR after 10 min recovery
The UH8500 TV have some image retention and it is a bit worse than what we have see on the UH9500. We can clearly make out the colored logos from the static image of the test video right after the 10 minutes exposure to the burn-in scene, but it was completely gone after 6 minutes of recovery.
A few lights won't be a problem. A small rainbow effect can be seen around bright reflections, though.
As long as the TV is being watched from directly in front, there is no crosstalk to be seen. As with other 3D TVs, slight vertical angles or wide horizontal angles will create crosstalk.
Sports look good on the LG UH8500. Action stays clear even on some of the fastest plays. So do players, balls, or cars, none of which will look blurry while moving at full speed. The color uniformity of the fields is not really good though, which is especially noticeable on panning shots.
The pixels response time is quick, so there isn't a long trail following moving objects. There is a small amount of overshoot that isn't apparent.
PWM Dimming Frequency
Judder-free 24p via 60p
Judder-free 24p via 60i
Blu-ray movies play smoothly, as do movies played over cable or satellite. Streaming movies might show some judder if you do not enable motion interpolation (TruMotion).
Motion Interpolation (30 fps)
Motion Interpolation (60 fps)
Motion interpolation (TruMotion) has to be enabled to enjoy streaming movies without judder. The 'Smooth' pre-set will add the soap opera effect, but using a low custom value can remove judder without adding noticeable soap opera effect.
The LG UH8500 is a good pick for video games. Low input lag keeps everything snappy and responsive, and games with quick movement, like first person shooters, won't appear too blurry.
1080p With Interpolation
1080p @ 60Hz Outside Game Mode
1080p @ 60Hz @ 4:4:4
4k @ 60Hz @ 4:4:4
4k @ 60Hz + HDR
4k @ 60Hz @ 4:4:4 + 8 bit HDR
The 1080p input lag is low enough for any fast-paced game. The TV's lag even remains at playable levels outside game mode, allowing for more picture options to be enabled. Unfortunately, motion interpolation adds too much lag for games to be properly playable. Those looking for that option for gaming should look for a different TV.
Update 12/08/2016: With the newest firmware update (04.30.19) there has been the addition of a HDR gaming mode. In this mode the HDR input lag is lower, and should be fine for HDR gaming. Note that although the TV accepts a 4k @ 60Hz @ 4:4:4 + HDR signal, it can't accurately display the chroma subsampling in any HDR mode, even with the 'PC' icon selected.
1080p @ 60Hz @ 4:4:4
It supports most standard PC resolutions, except for 1080p @ 120Hz. To enable chroma 4:4:4 for sharper text, go in the input menu and change the icon of the input to 'PC'. For 4k resolutions, you must also enable 'HDMI ULTRA Deep Color,' which you can find in the 'General' menu.
Input lag in PC mode is the same as in game mode.
1 Component In (need included adapter)
1 Composite In (need included adapter)
1 Digital Optical Audio Out
1 RF In
Digital Optical Audio Out
Analog Audio Out 3.5mm
1 (incl. adapter)
1 (incl. adapter)
5.1 Passthrough ARC Dolby Digital
5.1 Passthrough ARC DTS
5.1 Passthrough Optical Dolby Digital
5.1 Passthrough Optical DTS
HDMI 2.0 Full Bandwith
Variable Analog Audio Out
The sound isn't impressive, but it's decent overall, for a TV. A soundbar would still be a better solution for even better sound, though.
Note: Sound Quality test for TVs reviewed before 2017 was performed at 75dB, 85dB, and Max SPL. Starting 2017, the target SPL levels have been changed to 70dB, 80dB, and Max dB SPL.
Std. Dev. @ 70
2.25 dB SPL
Std. Dev. @ 80
4.49 dB SPL
Std. Dev. @ Max
7.22 dB SPL
This TV was tested with "Magic Sound Tuning" enabled. Good low-end extension, especially for a TV. Very good maximum loudness too, however, the TV is likely to pump at higher volumes. The frequency response, after applying Magic Sound Tuning, improves noticeably and becomes flatter and more balanced.
Total Harmonic Distortion
Good distortion results overall; unremarkable performance.
LG has improved its already good WebOS smart platform to version 3.0. The presentation looks great, navigation is quick, and the app selection covers the basics. In terms of usability, WebOS still has the edge when compared with the smart platforms offered by other brands.
Most of the popular apps are available, including YouTube, Netflix, Amazon Video, and a web browser. The overall number of available apps could be better, though.
Ads can be found in the LG content store, and you can only opt-out of personalized advertising.
Control buttons for basic functions can be found under the middle of the TV, right under the LG logo.
- Composite In adapter
- Component In adapter
- 2 pair of 3D glasses
- 1 cable tie
Power Consumption (Max)
Differences between Sizes and Variants
We tested the 55" (55UH8500) and expect, for the most part, our review to be valid for the other available sizes.
If someone comes across a different type of panel or if their LG UH8500 doesn't correspond to our review, let us know and we will update the review.
Compared to other TVs
Top row, from left: Sony X850D
), LG UH8500 (55UH8500), Vizio P Series 2016
). Bottom: Samsung KS8000
), LG UH7700
). Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.
The LG UH8500 is a good choice for a wide living room with seatings on the side of the TV. Unfortunately, when watched from front or in the dark, there is a lot of better performing TVs.
49" 55" 60" 65"
The Samsung KS8000 is a more versatile TV that outdoes the picture quality of the UH8500 as long as it is watched from straight on. If you have seating at various positions on the side of the TV, then the UH8500 will maintain a better picture quality at an angle. As a whole, the picture quality of the Samsung KS8000 is more beneficial. Only get the UH8500 if you want 3D.
Vizio P Series 2016
50" 55" 65" 75"
The 2016 Vizio P picture quality is better when viewed directly in front. Only when viewed from a pronounce angle the LG UH8500 gets the edge. The LG has the best smart platform experience and 3D but this is not enough to recommend it over the better Vizio P.
55" 65" 75" 85"
Both TVs offer a similar picture quality. The Sony x850d is better for sports. It can also get a little brighter which make it a better choice for HDR. The LG UH8500 have 3D and offers a better smart TV experience.
55" 60" 65"
The LG UH7700 have a close picture quality but still offers a little less on all fronts. The UH8500 is better for movies (dark scenes) and maintains higher details in sports and video games. It is also the only one with 3D.
Good TV for mixed usage. Performs best in a bright room with wide seating as the image remains accurate when viewed from an angle, but blacks appear gray in a dark room.
Fairly good TV for watching movies. Low native contrast ratio so blacks appear gray in a dark room, and local dimming is poor. Image is very accurate and uniformity is quite good.
Good TV for TV shows in a bright room. Image remains accurate when viewed at an angle, and TV can get decently bright to fight glare. Reflection handling is quite good, and smart platform works well for casual viewing.
Good choice for watching sports. Image remains accurate for those with wide seating and gray uniformity is decent so only some dirty screen effect is visible.
Good choice for gamers. Best suited to a bright room due to low native contrast ratio. Motion handling is very good, so only a short trail is seen following moving objects. TV feels responsive with low input lag however some temporary image retention is present after viewing static HUD elements in games.
Fairly good choice for HDR movies. Unfortunately native contrast ratio is low so blacks appear gray in a dark room, and local dimming is poor. Can produce bright, vivid highlights which is good and supports both the HDR10 and Dolby Vision format.
Good choice for HDR gaming. Supports both Dolby Vision and HDR10 and can produce bright, vivid highlights due to peak brightness and wide color gamut. Feels responsive due to low input lag and little motion blur which is good.
Decent PC monitor. Sides of the screen remain accurate when viewed from up close. Feels responsive due to low input lag and little motion blur. Supports chroma subsampling for clear text no matter the content.