LG BX OLED TV Review

Tested using Methodology v1.6
Updated Nov 02, 2020 at 08:35 am
LG BX OLED Picture
8.8
Mixed Usage
Value for price beaten by
: none
9.4
Movies
Value for price beaten by
: none
8.1
TV Shows
Value for price beaten by
: Samsung QN85A QLED
8.5
Sports
Value for price beaten by
: none
9.2
Video Games
Value for price beaten by
: none
8.7
HDR Movies
Value for price beaten by
: Vizio OLED 2020
9.0
HDR Gaming
Value for price beaten by
: none
8.7
PC Monitor
Value for price beaten by
: Samsung QN85A QLED
This TV was replaced by the LG B1 OLED
Type OLED
Sub-Type
WRGB
Resolution 4k

The LG BX OLED is the entry-level TV in LG's 2020 OLED lineup, and like most OLED TVs, it offers excellent overall performance. It has an infinite contrast ratio and perfect black uniformity, ideal for watching movies in dark rooms. Gamers should appreciate its FreeSync variable refresh rate (VRR) support and G-SYNC compatibility. It has a near-instant response time that results in clear motion, but that means lower-frame rate content appears to stutter. This TV has wide viewing angles, so it's a great choice for a wide seating arrangement. Even though it doesn't get bright enough to combat glare, it has outstanding reflection handling, so it performs well in most fairly-bright rooms. Sadly, like any OLED TV, it has the risk of permanent burn-in, but this should only be an issue with constant static elements, like if you use the TV as a PC monitor or if you only watch the news.

Our Verdict

8.8 Mixed Usage

The LG BX OLED is an excellent overall TV. With its OLED technology, it can individually turn off pixels, resulting in an infinite contrast ratio and perfect black uniformity, so blacks appear black when viewed in the dark. It's outstanding for gaming because it has a near-instant response time, VRR support, and really low input lag. Sadly, it doesn't get very bright, so it's not ideal to use in extremely bright rooms. Lastly, it has wide viewing angles if you want to watch TV or sports with friends and family.

Pros
  • Infinite contrast ratio.
  • Wide viewing angles.
  • Outstanding reflection handling.
  • Near-instant response time.
  • VRR support.
Cons
  • Doesn't get very bright.
  • Risk of permanent burn-in.
  • Lower-frame rate content stutters.
9.4 Movies

The LG BX is incredible for watching movies. With its OLED panel, it can individually turn off pixels. This results in an infinite contrast ratio and perfect black uniformity, making it an ideal choice for watching movies in dark rooms. It upscales lower-resolution content without any issues and removes 24p judder from any source, such as native apps or Blu-ray players.

Pros
  • Infinite contrast ratio.
  • Perfect black uniformity.
  • Removes 24p judder from any source.
Cons
  • Lower-frame rate content stutters.
8.1 TV Shows

The LG BX is great for watching TV shows. It has wide viewing angles, so you won't lose image accuracy if you tend to walk around while watching TV. It upscales 720p content, such as from cable boxes, without any problems. It has outstanding reflection handling, but it doesn't get bright enough to combat glare in well-lit rooms.

Pros
  • Wide viewing angles.
  • Outstanding reflection handling.
Cons
  • Doesn't get very bright.
  • Risk of permanent burn-in.
8.5 Sports

The LG BX is excellent for sports. Its near-instant response time results in minimal motion blur with fast-moving content, and there's no dirty screen effect in the center. You can easily watch the big game with a large group of friends thanks to its wide viewing angles. It doesn't get bright enough to combat glare, but luckily, it has outstanding reflection handling.

Pros
  • Wide viewing angles.
  • Outstanding reflection handling.
  • Near-instant response time.
Cons
  • Doesn't get very bright.
  • Risk of permanent burn-in.
9.2 Video Games

The LG BX is outstanding for gaming. It has a 120Hz panel and VRR support to reduce screen tearing. Its response time is nearly instantaneous, and it has a really low input lag. It's also a great choice for dark room gaming thanks to its OLED panel that displays extremely deep blacks and has perfect black uniformity.

Pros
  • Infinite contrast ratio.
  • Near-instant response time.
  • VRR support.
  • Really low input lag.
Cons
  • Risk of permanent burn-in.
8.7 HDR Movies

The LG BX is excellent for HDR movies. Its OLED panel individually turns off pixels, resulting in an infinite contrast ratio and perfect black uniformity. HDR content looks great because it displays a very wide color gamut, but it doesn't get bright enough to truly make highlights pop in HDR. Also, lower frame rate content may stutter due to the TV's near-instant response time.

Pros
  • Infinite contrast ratio.
  • Excellent wide color gamut for HDR content.
  • Perfect black uniformity.
Cons
  • Doesn't get very bright.
9.0 HDR Gaming

The LG BX OLED is excellent for HDR gaming. It's an outstanding choice for any gamer as it has FreeSync VRR support, a near-instant response time, and low input lag that stays low when gaming in HDR. It displays a wide color gamut, but sadly, it doesn't get bright enough to make some highlights stand out in HDR.

Pros
  • Infinite contrast ratio.
  • Near-instant response time.
  • VRR support.
  • Excellent wide color gamut for HDR content.
Cons
  • Doesn't get very bright.
  • Risk of permanent burn-in.
8.7 PC Monitor

The LG BX is an excellent choice to use as a computer monitor. It has low input lag, wide viewing angles, and outstanding reflection handling. It displays chroma 4:4:4, and it has a near-instant response time. Unfortunately, like any OLED, it has the risk of permanent burn-in and may be a problem with constant exposure to static elements, such as a desktop's user interface.

Pros
  • Wide viewing angles.
  • Outstanding reflection handling.
  • Really low input lag.
Cons
  • Doesn't get very bright.
  • Risk of permanent burn-in.
  • 8.8 Mixed Usage
  • 9.4 Movies
  • 8.1 TV Shows
  • 8.5 Sports
  • 9.2 Video Games
  • 8.7 HDR Movies
  • 9.0 HDR Gaming
  • 8.7 PC Monitor
  1. Updated Jul 12, 2021: We've added two new videos demonstrating the backlight behavior with real content.
  2. Updated Jul 09, 2021: Checked to see if Dolby Vision in 4k @ 120Hz works from the Xbox Series X.
  3. Updated Mar 01, 2021: Retested the BFI flicker frequency.
  4. Updated Mar 01, 2021: Converted to Test Bench 1.6.
  5. Updated Dec 09, 2020: We retested the pre-calibration accuracy.
  6. Updated Nov 03, 2020: We retested the TV with an HDMI 2.1 source.
  7. Updated Aug 19, 2020: Update to HDMI Forum VRR support.
  8. Updated Aug 14, 2020: Review published.
  9. Updated Aug 10, 2020: Early access published.

Test Results

perceptual testing image
Market Context
Market Context
Market Context

The LG BX OLED is the entry-level TV in LG's 2020 4k OLED lineup. It sits below the LG CX OLED and it replaces the LG B9 OLED from 2019. There aren't many OLED TVs available, but its main competitors are the Sony A8H OLED and the Vizio OLED 2020, and it has a few LED competitors like the Samsung Q80T QLED.

Design
Design
Style
Curved No

The LG BX has an outstanding style with a center-mounted stand, much like 2019's LG B9 OLED. It's also very similar to the LG CX OLED, with the only difference being that the BX's stand is smaller, and it's made out of plastic. All in all, it's a great-looking modern TV.

Design
Stand

This TV has the same stand as the LG B9 OLED. It's a center-mounted plastic stand that holds the TV well, but it has more wobble than the wider, metal stand on the LG CX OLED.

Footprint of the 55" stand: 22.1" x 9.1"

Design
Back
Wall Mount VESA 300x200

The back of the LG BX is nearly identical to the LG CX OLED and LG B9 OLED. The top half that holds the panel is metal with a smooth finish, and the bottom half where the inputs are housed is made from solid plastic. There's a clip on the back for cable management.

Design
Borders
Borders 0.35" (0.9 cm)

The borders are thin and aren't distracting.

Design
Thickness
Max Thickness 1.89" (4.8 cm)

The LG BX is very thin, and it won't stick out much if wall-mounted. It gets thicker with the stand attached, but it still doesn't take up a whole lot of space.

8.5
Design
Build Quality

The LG BX has an excellent build quality. The plastic stand isn't as sturdy as the metal stand on the LG CX OLED, but it still holds the TV well. The plastic part near the inputs flexes a bit and makes a clicking noise as if it's not connected to the panel properly, but this could be an issue with our unit only. Besides that, there aren't any obvious problems, and it's a well-built TV.

Picture Quality
10
Picture Quality
Contrast
Native Contrast
Inf : 1
Contrast with local dimming
N/A

Like all OLED TVs, the LG BX has an infinite contrast ratio since it can turn off individual pixels, resulting in perfect blacks.

6.5
Picture Quality
SDR Brightness
Real Scene Peak Brightness
285 cd/m²
Peak 2% Window
336 cd/m²
Peak 10% Window
401 cd/m²
Peak 25% Window
363 cd/m²
Peak 50% Window
291 cd/m²
Peak 100% Window
138 cd/m²
Sustained 2% Window
320 cd/m²
Sustained 10% Window
380 cd/m²
Sustained 25% Window
343 cd/m²
Sustained 50% Window
276 cd/m²
Sustained 100% Window
133 cd/m²
Automatic Brightness Limiting (ABL)
0.068

The LG BX has just okay peak brightness. It's significantly less bright than the LG B9 OLED and doesn't get bright enough to combat glare in most rooms. It has an aggressive 'Automatic Brightness Limiter' (ABL) that dims the screen when large areas are bright, as seen in the dip in brightness in the 100% sustained window test.

These measurements were taken post-calibration in the 'Expert (Dark Room)' Picture Mode with Peak Brightness on 'High' and OLED Light on 'Max'. Originally, we had to run a Pixel Refresher because the screen seemed too dim compared to the LG B9 OLED, but the screen didn't get much brighter after the refresh. Before completing the Pixel Refresher, most scenes were between 334 to 394 cd/m², and we got 116 cd/m² in the 100% sustained window test.

If you want the brightest image possible, we were able to get 428 cd/m² in the 2% peak window test in 'Expert (Dark Room)' Picture Mode with OLED Light and Contrast set to 'Max', Peak Brightness on 'High', and Dynamic Contrast set to 'Medium'.

10
Picture Quality
Local Dimming
Local Dimming
No
Backlight
No Backlight

Update 07/12/2021: We've added two new videos demonstrating the backlight behavior with real content.

This TV doesn't have a backlight, so it doesn't have a local dimming feature. It can dim pixels individually, and subtitles are displayed perfectly, with no visible blooming.

10
Picture Quality
Local Dimming In Game Mode
Local Dimming
No
Backlight
No Backlight

Update 07/12/2021: We've added two new videos demonstrating the backlight behavior with real content.

6.0
Picture Quality
HDR Brightness
Real Scene Highlight
454 cd/m²
Peak 2% Window
454 cd/m²
Peak 10% Window
542 cd/m²
Peak 25% Window
386 cd/m²
Peak 50% Window
231 cd/m²
Peak 100% Window
128 cd/m²
Sustained 2% Window
436 cd/m²
Sustained 10% Window
517 cd/m²
Sustained 25% Window
364 cd/m²
Sustained 50% Window
220 cd/m²
Sustained 100% Window
122 cd/m²
Automatic Brightness Limiting (ABL)
0.093

This TV has mediocre HDR peak brightness. It doesn't get bright enough to truly bright out highlights in HDR, and due to its aggressive ABL, the screen gets less bright as large, bright areas cover the screen. If you want a similar TV that gets brighter in HDR, look into the LG GX OLED.

We measured the HDR peak brightness on the 'HDR Cinema' Picture Mode with Color Temperature set to 'Warm 2', Peak Brightness set to 'High', and OLED Light on 'Max'. Like with SDR peak brightness, we ran a Pixel Refresher and the screen got a bit brighter after. Before the Pixel Refresher, most scenes were between 358 to 534 cd/m², and we got 117 cd/m² in the 100% sustained window test.

If you want the brightest image possible, set the Picture Mode to 'Vivid', Dynamic Contrast to 'Medium', OLED Light and Contrast to 'Max', and Peak Brightness on 'High'. We were able to get 706.8 cd/m² with a 10% peak window.

The replacement of this TV, the LG B1 OLED, gets brighter in HDR if that's what you prefer.

6.0
Picture Quality
HDR Brightness In Game Mode
Real Scene Highlight
450 cd/m²
Peak 2% Window
442 cd/m²
Peak 10% Window
540 cd/m²
Peak 25% Window
384 cd/m²
Peak 50% Window
241 cd/m²
Peak 100% Window
130 cd/m²
Sustained 2% Window
420 cd/m²
Sustained 10% Window
516 cd/m²
Sustained 25% Window
362 cd/m²
Sustained 50% Window
230 cd/m²
Sustained 100% Window
124 cd/m²
Automatic Brightness Limiting (ABL)
0.086
8.7
Picture Quality
Gray Uniformity
50% Std. Dev.
1.691%
50% DSE
0.118%
5% Std. Dev.
0.466%
5% DSE
0.096%

The LG OLED55BXPUA has excellent gray uniformity, but this may vary between units. There's very little dirty screen effect in the center, which is great for sports fans. Uniformity is improved in near-dark scenes, but like some other OLED TVs, some faint vertical lines are visible in near-dark scenes in very dark rooms. Unlike the LG B9 OLED, the screen doesn't appear to flash in near-dark scenes.

10
Picture Quality
Black Uniformity
Native Std. Dev.
0.214%
Std. Dev. w/ L.D.
N/A

Since this OLED TV can turn off individual pixels, black uniformity is perfect.

8.6
Picture Quality
Viewing Angle
Color Washout
51°
Color Shift
31°
Brightness Loss
63°
Black Level Raise
70°
Gamma Shift
60°

The LG BX OLED has excellent wide viewing angles, which is expected from an OLED TV. The image remains accurate when viewing from the side, great for wide seating arrangements.

9.3
Picture Quality
Reflections
Screen Finish
Glossy
Total Reflections
1.5%
Indirect Reflections
0.2%
Calculated Direct Reflections
1.3%

The LG OLED55BXPUA has outstanding reflection handling, similar to the LG CX OLED. Even with direct sunlight on this TV, the reflections shouldn't be too distracting.

8.9
Picture Quality
Pre Calibration
White Balance dE
1.61
Color dE
1.04
Gamma
2.19
Color Temperature
6,834 K
Picture Mode
Expert (Dark Room)
Color Temp Setting
Warm 2
Gamma Setting
2.2

Update 12/09/2020: We remeasured the accuracy after calibrating our spectroradiometer. The review has been updated.

The LG BX has amazing out-of-the-box color accuracy, much better than the LG B9 OLED. There are minimal inaccuracies with colors and shades of gray, but since the color temperature is a bit cold, the image has a blue tint. Gamma follows the target well, but some scenes are a bit too bright. Note that out-of-the-box accuracy may vary between units.

9.4
Picture Quality
Post Calibration
White Balance dE
0.26
Color dE
1.32
Gamma
2.20
Color Temperature
6,536 K
White Balance Calibration
22 point
Color Calibration
Yes

The LG OLED55BXPUA has remarkable color accuracy after calibration, and any remaining inaccuracies can't be spotted without the aid of a colorimeter. Gamma follows the target almost perfectly, and the color temperature is extremely close to the 6500K target.

We measured the color accuracy after completing a Pixel Refresher, which only slightly improved the color accuracy. Unlike the LG B9 OLED, we didn't notice any black crushing during calibration. There was some in the 'Standard' Picture Mode, but there wasn't any in 'Expert (Dark Room)'.

You can see our recommended settings here.

8.0
Picture Quality
480p Input

This TV upscales 480p content well, with no obvious artifacts.

8.0
Picture Quality
720p Input

The LG BX upscales 720p content, such as from cable boxes, well with no upscaling artifacts.

9.0
Picture Quality
1080p Input

1080p content looks almost as good as native 4k content.

10
Picture Quality
4k Input

The LG BX displays 4k content without any issues. Even though it has an RGBW pixel structure, all four sub-pixels are never on at the same time, so there's no loss in color resolution.

0
Picture Quality
8k Input

This is a 4k TV that can't display an 8k input.

Picture Quality
Pixels

The LG BX uses an RGBW pixel structure with four sub-pixels, but all four are never used at the same time. The above image shows the red, white, and blue sub-pixels. You can see the green pixel and other pixel structures in these three photos: Photo 1, Photo 2, Photo 3.

8.6
Picture Quality
Color Gamut
Wide Color Gamut
Yes
DCI P3 xy
95.90%
DCI P3 uv
98.62%
Rec 2020 xy
72.13%
Rec 2020 uv
77.18%

The LG OLED55BXPUA has an excellent color gamut, very similar to the LG CX OLED. It covers almost all of the DCI P3 color space used in most HDR content, and it has decent coverage of the wider Rec. 2020 color space. Before we ran a Pixel Refresher on the TV, the DCI P3 and Rec. 2020 coverage were only slightly better, but the differences are insignificant.

The EOTF in 'Cinema HDR' mode follows the curve almost perfectly until it rolls off at its peak brightness. The EOTF in 'Game' mode is very similar, except the roll-off is a bit more smooth.

If you find HDR too dim, set the Picture Mode to 'Vivid', and you can see the EOTF here. Enabling Dynamic Tone Mapping makes the image brighter in our EOTF test, but it changes the brightness according to each scene, so your experience may vary.

7.8
Picture Quality
Color Volume
Normalized DCI P3 Coverage ITP
82.5%
10,000 cd/m² DCI P3 Coverage ITP
38.0%
Normalized Rec 2020 Coverage ITP
73.8%
10,000 cd/m² Rec 2020 Coverage ITP
34.2%

This TV has good color volume. Due to its infinite contrast ratio, it displays dark colors extremely well but struggles to display brighter colors.

Note: Before performing a Pixel Refresher, it had a better DCI P3 color volume and slightly worse Rec. 2020 color volume, but most people won't notice the difference between the results before and after the refresh.

7.0
Picture Quality
Gradient
Color Depth
10 Bit
Red (Std. Dev.)
0.133
Green (Std. Dev.)
0.136
Blue (Std. Dev.)
0.112
Gray (Std. Dev.)
0.197

The LG BX has decent gradient handling. There's banding in every color, especially in the dark shades. Enabling the Smooth Gradation feature doesn't improve the test pattern. It slightly smooths out gradients in real scenes, but not by much. We ran a Pixel Refresher to see if it would improve the gradient handling, and it only improved a bit, but not significantly. If you want an OLED with significantly better gradient handling, look into the Vizio OLED 2020.

9.3
Picture Quality
Temporary Image Retention
IR after 0 min recovery
0.14%
IR after 2 min recovery
0.13%
IR after 4 min recovery
0.09%
IR after 6 min recovery
0.00%
IR after 8 min recovery
0.08%
IR after 10 min recovery
0.05%

Sadly, the LG OLED55BXPUA has some temporary image retention after displaying a high-contrast image, similar to the LG C8 OLED or the LG CX OLED monitor we tested. This varies between units, so you may experience something different.

Note: The image retention after six minutes shows 0.0%, but this is an error on our end and there's indeed some visible image retention after six minutes.

2.0
Picture Quality
Permanent Burn-In Risk
Permanent Burn-In Risk
Yes

Unfortunately, like all OLED TVs, the LG OLED55BXPUA isn't immune to permanent burn-in. However, we don't expect people who watch varied content to have any issues, but rather it's a problem if there are constant static displays, like if it's used as a PC monitor.

This TV has three features to help burn-in risk. Enabling Screen Shift option, and setting Logo Luminance Adjustment to 'Low' may help with this. There's also an automatic Pixel Refresher that can be run manually if needed.

You can read about our investigation into this here.

Motion
9.7
Motion
Response Time
80% Response Time
0.2 ms
100% Response Time
3.8 ms

The LG BX has an incredible response time, but it's not as good as some other OLED TVs like the LG CX OLED. It has overshoot in the darker transitions, which may lead to motion artifacts in dark scenes.

10
Motion
Flicker-Free
Flicker-Free
No
PWM Dimming Frequency
0 Hz

There's a slight dip in brightness every eight ms, which coincides with the 120Hz refresh rate and isn't noticeable.

10
Motion
Black Frame Insertion (BFI)
Optional BFI
Yes
Min Flicker For 60 fps
60 Hz
60Hz For 60 fps
Yes
120Hz For 120 fps
Yes
Min Flicker for 60 fps in Game Mode
60 Hz

Update 02/17/2021: We retested the BFI feature to confirm the flicker frequency.

The LG OLED55BXPUA has a Black Frame Insertion feature to improve the appearance of motion. For it to work, set TruMotion to 'User' and change OLED Motion according to the content you're watching. Set it to 'High' if you're watching 60fps content because it flickers at 60Hz, and 'Low' or 'Medium' with 120fps content because it flickers at 120fps. If you set it to 'Medium' or 'Low' with 60fps content, there's noticeable image duplication. You may also notice some image duplication with 'Medium' with 120fps content, as seen here. Lastly, you can't use G-SYNC when the BFI feature is enabled.

Motion
Motion Interpolation
Motion Interpolation (30 fps)
Yes
Motion Interpolation (60 fps)
Yes

This TV can interpolate content up to 120Hz, known as the 'Soap Opera Effect', which helps the appearance of motion. Motion looks alright with this feature and it doesn't stop interpolating in busy scenes, which results in some artifacts.

See here for the settings that control the motion interpolation feature.

5.3
Motion
Stutter
Frame Hold Time @ 24 fps
37.9 ms
Frame Hold Time @ 60 fps
12.9 ms

Due to the TV's extremely fast response time, there's noticeable stutter with lower-frame rate content as each frame is held on longer. Enabling motion interpolation or the BFI feature can help reduce stutter.

10
Motion
24p Judder
Judder-Free 24p
Yes
Judder-Free 24p via 60p
Yes
Judder-Free 24p via 60i
Yes
Judder-Free 24p via Native Apps
Yes

The LG BX can remove 24p judder from any source, such as native apps or Blu-ray players. To remove judder, simply enable Real Cinema. With OLED Motion set to 'Medium' or 'Auto', it removes all judder. On 'Low,' there's still some judder, but it reduces it, and it doesn't remove judder at all when set to 'High.'

7.9
Motion
Variable Refresh Rate
Native Refresh Rate
120 Hz
Variable Refresh Rate
Yes
HDMI Forum VRR
Yes
FreeSync
Yes
G-SYNC Compatible
Yes (NVIDIA Certified)
4k VRR Maximum
120 Hz
4k VRR Minimum
40 Hz
1080p VRR Maximum
120 Hz
1080p VRR Minimum
40 Hz
1440p VRR Maximum
120 Hz
1440p VRR Minimum
40 Hz
VRR Supported Connectors
HDMI

Update 08/19/2020: We confirmed that it supports HDMI Forum's VRR. With the Xbox One S connected, we disabled the FreeSync setting and enabled the G-SYNC setting on the TV. The Xbox showed VRR as still working, meaning it was working with HDMI Forum VRR.

The LG OLED55BXPUA has a 120Hz refresh rate and it has VRR support to help reduce screen tearing. With G-SYNC enabled, there's some minor glitching with 4k @ 120Hz content, similar to the LG CX OLED. FreeSync works with 4k @ 60Hz and not 4k @ 120Hz.

For G-SYNC to work, simply enable Instant Game Response in the settings menu and set the Picture Mode to 'Game'. For FreeSync, you also need to enable the AMD FreeSync Premium setting for the input you're using. Learn about our recommended gaming settings here.

Inputs
9.4
Inputs
Input Lag
1080p @ 60Hz
15.0 ms
1080p @ 60Hz Outside Game Mode
106.1 ms
1440p @ 60Hz
14.8 ms
4k @ 60Hz
14.5 ms
4k @ 60Hz + 10-Bit HDR
14.5 ms
4k @ 60Hz @ 4:4:4
14.6 ms
4k @ 60Hz Outside Game Mode
94.1 ms
4k @ 60Hz With Interpolation
85.8 ms
8k @ 60Hz
N/A
1080p @ 120Hz
5.9 ms
1440p @ 120Hz
5.7 ms
4k @ 120Hz
6.9 ms
1080p with Variable Refresh Rate
5.9 ms
1440p with VRR
6.2 ms
4k with VRR
9.2 ms
8k with VRR
N/A

Update 11/03/2020: We updated the TV to firmware 3.11.20 and retested the input lag with an HDMI 2.1 source, including 4k @ 120Hz.

The LG BX has excellent low input lag as long as you're in 'Game' mode, similar to 2019's LG B9 OLED. There's an 'Auto Low Latency Mode' that automatically switches the TV into 'Game' mode when you launch a game from a compatible device. For it to work, Instant Game Response must be enabled. When we connected an Xbox One S, it automatically enabled Instant Game Response, so the 'Auto Low Latency Mode' was turned on too.

If you're using this TV as a PC and want the lowest input lag possible, set the input icon to 'PC' in the Home Dashboard. Learn more about the PC settings here.

9.6
Inputs
Supported Resolutions
1080p @ 60Hz @ 4:4:4
Yes
1080p @ 120Hz
Yes (native support)
1440p @ 60Hz
Yes (forced resolution required)
1440p @ 120Hz
Yes (native support)
4k @ 60Hz
Yes
4k @ 60Hz @ 4:4:4
Yes
4k @ 120Hz
Yes (native support)
8k @ 30Hz or 24Hz
No
8k @ 60Hz
No

Update 11/03/2020: We updated the TV to firmware 3.11.20 and retested it with an HDMI 2.1 source.

The LG OLED55BXPUA supports all common resolutions. It displays chroma 4:4:4 with a 4k @ 120Hz resolution and any resolution at 60Hz, but it can't display it with 1080p @ 120Hz. For it to work, set the input icon to 'PC' in the Home Dashboard, as it doesn't display 4:4:4 outside of 'PC' mode. HDMI ports three and four are the only ones that support 4k @ 120Hz, and to achieve full bandwidth, enable HDMI Ultra HD Deep Color from the settings menu.

Inputs
Advanced Console Compatibility
Auto Low Latency Mode (ALLM)
Yes
PS5, 4k @ 120Hz + HDR
Yes
PS5, 4k @ 120Hz
Yes
PS5, 4k @ 60Hz + HDR
Yes
PS5, 1440p @ 120Hz
PS5 can't do 1440p
PS5, 1080p @ 120Hz
Yes
PS5, Variable Refresh Rate
PS5 can't do VRR yet
Xbox Series X, 4k @ 120Hz + HDR
Yes
Xbox Series X, 4k @ 120Hz
Yes
Xbox Series X, 4k @ 60Hz + HDR
Yes
Xbox Series X, 1440p @ 120Hz
Yes
Xbox Series X, 1080p @ 120Hz
Yes
Xbox Series X, Variable Refresh Rate
Yes

Update 07/09/2021: We updated the TV and Xbox to see if the TV can play 4k @ 120Hz games in Dolby Vision. It can't and can only do up to 4k @ 60Hz as long as FreeSync is disabled. LG fixed this issue on their 2021 TVs, like the LG G1 OLED.

Inputs
Inputs Specifications
HDR10
Yes
HDR10+
No
Dolby Vision
Yes
HLG
Yes
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
HDMI 2.1 Class Bandwidth
Yes (HDMI 3,4)
CEC Yes
HDCP 2.2 Yes (HDMI 1,2,3,4)
USB 3.0
No
Variable Analog Audio Out Yes
Wi-Fi Support Yes (2.4 GHz, 5 GHz)

Update 11/03/2020: We updated the TV to firmware 3.11.20 and retested it with an HDMI 2.1 source. We confirmed HDMI 3 and 4 support HDMI 2.1.

HDMI ports 3 and 4 support HDMI 2.1 but not full-bandwidth HDMI 2.1. The LG BX only has 40Gbps ports capable of 4k @ 120Hz @ 4:4:4 10-bit instead of 48Gbps ports, which would be able to reach 12-bit, but we don't expect this to make any noticeable difference.

Inputs
Input Photos
Inputs
Total Inputs
HDMI 4
USB 3
Digital Optical Audio Out 1
Analog Audio Out 3.5mm 1
Analog Audio Out RCA 0
Component In 0
Composite In 1 (incl. adapter)
Tuner (Cable/Ant) 1
Ethernet 1
DisplayPort 0
IR In 0
SD/SDHC 0
Inputs
Audio Passthrough
ARC
Yes (HDMI 3)
eARC support
Yes
Dolby Atmos via TrueHD via eARC
Yes
DTS:X via DTS-HD MA via eARC
No
5.1 Dolby Digital via ARC
Yes
5.1 DTS via ARC
No
5.1 Dolby Digital via Optical
Yes
5.1 DTS via Optical
No

The LG BX supports eARC when connected to a compatible receiver, so it can send a high-quality Dolby Atmos via TrueHD signal over an HDMI connection. For this to work, enable HDMI Arc and turn eARC on.

Sound Quality
7.2
Sound Quality
Frequency Response
Low-Frequency Extension
67.27 Hz
Std. Dev. @ 70
2.98 dB
Std. Dev. @ 80
3.51 dB
Std. Dev. @ Max
6.27 dB
Max
91.1 dB SPL
Dynamic Range Compression
4.93 dB

The LG BX has a decent frequency response, but it's not as good as the higher-end LG CX OLED. Its bass gets low enough to have some punch to it, but it still doesn't produce any rumble or thump. It has a fairly well-balanced sound profile, which is important for dialogue, and it gets loud enough to use in noisy environments.

6.8
Sound Quality
Distortion
Weighted THD @ 80
0.129
Weighted THD @ Max
0.810
IMD @ 80
2.74%
IMD @ Max
9.52%

The distortion performance is just okay. There's some minor distortion at moderate listening levels, but it gets more noticeable when playing at its max volume. However, this depends on the content, and not everyone may hear it.

Smart Features
8.5
Smart Features
Interface
Smart OS WebOS
Version 5.0
Ease of Use
Easy
Smoothness
Average
Time Taken to Select YouTube
2 s
Time Taken to Change Backlight
7 s
Advanced Options
Many

The LG BX has LG's WebOS built-in, which is easy-to-use and fairly smooth to navigate. We experienced one bug during testing when the Peak Brightness didn't work properly, even after turning the TV on and off again. However, after leaving the TV off overnight, the problem fixed itself.

0
Smart Features
Ad-Free
Ads
Yes
Opt-out
No
Suggested Content in Home
Yes
Opt-out of Suggested Content
No

Unfortunately, there are ads on the home screen and app store, and there aren't any ways to disable them.

8.0
Smart Features
Apps and Features
App Selection
Great
App Smoothness
Average
Cast Capable
Yes
USB Drive Playback
Yes
USB Drive HDR Playback
Yes
HDR in Netflix
Yes
HDR in YouTube
Yes

LG's app store has a great selection of apps available to download, and you can also cast content from your phone.

9.0
Smart Features
Remote
Size
Large
Voice Control
Many Features
CEC Menu Control
Yes
Other Smart Features
Yes
Remote App LG TV Plus

The LG BX comes with the same LG Magic Remote as 2019's LG B9 OLED and 2020's LG CX OLED. You can use it like a traditional remote with its navigation buttons or use it as a point-and-press remote, like a computer mouse. It has shortcut buttons to Netflix and Amazon Prime Video. It has built-in voice control that allows you to change inputs, search for content, or ask for the weather, but some settings can't be changed through voice control.

Smart Features
TV Controls

There's a single button underneath the center of the screen. It allows you to turn the TV On/Off, change inputs, volume, and channels.

Smart Features
In The Box

  • Remote and 2 x AA batteries
  • Composite adapter
  • User manuals

Smart Features
Misc
Power Consumption 70 W
Power Consumption (Max) 152 W
Firmware 03.10.25

Differences Between Sizes And Variants

We tested the 55 inch LG BX (OLED55BXPUA) and we expect our results to be valid for the 65 inch (OLED65BXPUA) model too.

Size US Model Canada UK Model Notes
55" OLED55BXPUA OLED55BXPUA OLED55BX6LB  
65" OLED65BXPUA OLED65BXPUA OLED65BX6LB  

If someone comes across a different type of panel or if their LG BX doesn't correspond to our review, let us know and we'll update the review. Note that some tests such as the gray uniformity may vary between individual units.

The LG BX we reviewed was manufactured in May 2020, and you can see the label here.

Compared To Other TVs

The LG BX is an excellent TV, and like most OLED TVs, it delivers amazing overall picture quality with deep, inky blacks. It has much better out-of-the-box color accuracy than its predecessor, the LG B9 OLED, which is a nice touch if you don't want to get your TV calibrated. Sadly, the LG BX doesn't get as bright as the LG CX OLED, which could be disappointing if you want to place it in a bright room. Also, see our recommendations for the best OLED TVs, the best 55 inch TVs, and the best 4k TVs.

LG CX OLED
48" 55" 65" 77"

The LG CX OLED is slightly better than the LG BX OLED. The CX gets brighter, handles gradients better, and comes with a sturdier, metal stand. However, the BX has slightly wider viewing angles, but this may vary between units. 

LG C1 OLED
48" 55" 65" 77" 83"

The LG C1 OLED and the LG BX OLED perform similarly overall since they both use OLED panels with near-infinite contrast ratios, nearly instant response times, and wide viewing angles. However, the C1 is available in more sizes and gets a bit brighter in HDR. It also has four HDMI 2.1 ports, while the BX only has two.

LG B1 OLED
55" 65" 77"

The LG B1 OLED replaces the LG BX OLED, and the two TVs are very similar. The design didn't change, and the performance didn't change by much either. The B1 gets a bit brighter in HDR, but it's not enough to notice. It also has much better gradient handling, meaning that you won't notice as much banding in scenes with similar shades of color. The B1 has an updated version of the LG webOS and a redesigned remote, but they perform the same as the 2020 model.

LG A1 OLED
48" 55" 65" 77"

The LG BX OLED and the LG A1 OLED deliver nearly identical picture quality, but differ in their extra features and gaming performance. The BX is much better for gaming, with 2 HDMI 2.1 ports for next-gen consoles, a 120Hz refresh rate, and support for advanced gaming features, including variable refresh rate technology (VRR). The BX is also better for movies, as it has an optional Black Frame Insertion feature, and it can remove judder from all sources.

Samsung Q80/Q80T QLED
49" 50" 55" 65" 75" 85"

The LG BX OLED is a better overall than the Samsung Q80T QLED. Thanks to its OLED panel, the LG has an infinite contrast ratio, wider viewing angles, and a near-instant response time. The Samsung does get brighter, has a lower input lag, and doesn't have the risk of permanent burn-in. That said, burn-in shouldn't be an issue if you watch varied content, so all in all, the LG is a better choice if you want stunning picture quality.

Sony A8H OLED
55" 65"

The Sony A8H OLED and the LG BX OLED are very similar TVs for the most part. The Sony gets brighter and handles gradients better, while the LG is a better choice for gaming because it has VRR support and a lower input lag. The LG also comes with LG's WebOS, which is easier to use but has fewer apps available to download than the Sony's Android TV.

LG G1 OLED
55" 65" 77"

The LG BX OLED and the LG G1 OLED are both excellent options with minimal differences. The main upgrade from the G1 over the BX is the new evo panel, which allows the G1 to get brighter, especially in HDR. The G1 has slightly lower input lag at 60Hz thanks to LG's new Prevent Input Delay setting, but the difference isn't noticeable when gaming. While the G1 is meant to sit flush against a wall and comes with a dedicated wall mount, it doesn't have a stand like the BX.

LG B9 OLED
55" 65" 77"

The LG BX OLED and the LG B9 OLED are very similar TVs. The B9 gets brighter, and it has better gradient handling, while the BX has much better out-of-the-box color accuracy, and its Black Frame Insertion feature flickers at 120Hz. Other than that, the two TVs are built the same way and have the same stand.

Sony X900H
55" 65" 75" 85"

The LG BX OLED is much better overall than the Sony X900H, but they have different panel types. The LG has an OLED panel with self-emitting pixels, so it has an infinite contrast ratio and perfect black uniformity. It also has wider viewing angles and a near-instant response time for gaming. On the other hand, the LED panel on the Sony gets much brighter, and it doesn't have the risk of permanent burn-in like the LG.

LG GX OLED
55" 65" 77"

The LG BX OLED and the LG GX OLED are extremely similar TVs. The main differences are in its design. The GX is designed to sit flush against the wall and it doesn't come with a stand; the BX is more standard as it comes with a center-mounted stand. They each have an infinite contrast ratio thanks to their OLED panels, and while the GX gets a bit brighter, it shouldn't be that noticeable.

LG C9 OLED
55" 65" 77"

The LG BX OLED and the LG C9 OLED are two similar TVs. The C9 is better-built because it has a metal stand, it gets much brighter, it has better gradient handling, and it has a lower input lag. However, the BX has better out-of-the-box color accuracy.

Vizio OLED 2020
55" 65"

The LG BX OLED is better than the Vizio OLED 2020. The LG has much better out-of-the-box color accuracy, much lower input lag, it removes judder from any source, and it has FreeSync support. However, the Vizio has much better gradient handling and wider viewing angles.

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