Specification: LG – 77″ Class GX Series OLED 4K UHD Smart webOS TV
Display Type
OLED
Series
GX Series
High Dynamic Range HDR
Yes
High Dynamic Range Format
Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG)
Refresh Rate
120Hz
Specific Manufacturer Technologies
Infinite Contrast, Perfect Black, Billion Rich Colours, Pixel Level Dimming, True Color Accuracy Pro, Intense Color
Smart Platform
webOS
Featured Streaming Services
Apple TV+, Paramount+, Crackle, Disney+, Fandango, Google Play Movies & TV, Hulu, Netflix, Pandora, Peacock, Prime Video, Redbox, SHOWTIME, SIRIUS, STARZ, Sling TV, Spotify, Twitch, Vudu, YouTube, YouTube TV, iHeartRadio
Number of HDMI Inputs Total
4
Works With
Apple HomeKit, Google Assistant, Amazon Alexa
Voice Assistant Built-in
Google Assistant
Product Name
77" Class GX Series OLED 4K UHD Smart webOS TV
Brand
LG
Curved Screen
No
Model Number
OLED77GXPUA
Model Year
2020
Color
Black
Color Category
Black
Product Width
67.7 inches
Product Height Without Stand
39 inches
Product Depth Without Stand
0.9 inches
Product Weight Without Stand
86.9 pounds
Height
44.5 inches
Width
74.6 inches
Depth
9 inches
Screen Size
76.7 inches
Picture Quality Enhancement Technology
Cinema HDR
Screen Size Class
77 inches
Resolution
4K (2160p)
Network Compatibility
Built-in Wi-Fi, Ethernet
Remote Control Type
Universal
Screen Mirroring
Yes
Screen Mirroring Technology
Apple AirPlay 2, Miracast
TV Tuner
Digital
Number of HDMI 2.1 Inputs
1
Number of HDMI 2.0 Inputs
3
Number Of USB Ports Total
3
Number of USB 2.0 Ports
3
Ethernet Ports
Yes
RF Antenna Input
Yes
Bluetooth Enabled
Yes
Bluetooth Version
5.0
Number of Digital Optical Audio Outputs
1
Number of Composite Video Inputs
1
3D Technology
No
VESA Wall Mount Standard
300mm x 300mm
Built-In Speakers
Yes
Built-in Speaker Type
Downward firing
ENERGY STAR Certified
No
EPEAT Qualified
No
Estimated Annual Operating Cost
38 United States dollars
Estimated Annual Electricity Use
318 kilowatt hours
Rechargeable Battery Remote Control
No
Stand Included
No
Manufacturers Warranty - Parts
1 year
Manufacturers Warranty - Labor
1 year
Smart Capable
Yes
UPC
719192637221
Photos: LG – 77″ Class GX Series OLED 4K UHD Smart webOS TV
8 reviews for LG – 77″ Class GX Series OLED 4K UHD Smart webOS TV
5.0out of 5
★★★★★
★★★★★
8
★★★★★
0
★★★★★
0
★★★★★
0
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★★★★★
Awesome –
I would have to say; this is the best TV I have ever owned. The color black is True Black, and the colors are amazing. I love the Art Gallary screensaver. The template provided for the installation was a waste of time, don’t bother – use painter’s tape as you measure the wall to figure out the dimensions. I don’t use the interface as we use Roku.
This is a definite buy; You won’t regret the purchase.
Helpful(0)Unhelpful(0)You have already voted this
★★★★★
Awesome –
Awesome tv Phenomenal picture specially with all the natural light I have coming in my living room I would highly recommend this TV
Helpful(0)Unhelpful(0)You have already voted this
★★★★★
Francis –
I’ve owned this TV for about a few weeks now coming from a 2015 L.E.D TV and I enjoy every minutes of it. HDR movies is outstanding SDR contents look fantastic and sports. Also my XBOX Series X and PLAYSTATION 5 IS LOOKING A++++ now just waiting for Sony unlock the VRR feature. This TV is the best Gaming TV you can get right now. I would definitely recommend this TV to anyone
Helpful(0)Unhelpful(0)You have already voted this
★★★★★
Kevin –
Very happy with my first OLED TV purchase. Having LED tv’s I was concerned with the brightness levels but this has an amazing picture and sits super flat against the wall.
Helpful(0)Unhelpful(0)You have already voted this
★★★★★
Brian –
The best picture quality of any TV and the sound is amazing for TV speakers. The only TV that is possibly better is the Sony A90J, but its several thousands more. The only issue are the wall mounting anchors and they are terrible. They don’t work. The wall mount is smaller then standard width to mount on studs. I had to mount into one stud and buy special dry wall anchors to support the tv. I uploaded a photo of the drywall anchors i used. At first, i used the anchors that were given and they pretty much came out of the wall. The TV would have fell off if I didn’t mount onside into a stud.
Helpful(0)Unhelpful(0)You have already voted this
★★★★★
Deviantmethos –
I purchased a few big screen tv’s over the past year and returned them all. I was worried ablit spening $3500 on this tv and having “buyers remorse”.
I have absolutely, unequivocally 0 buyers remorse. The color is amazing , the motion is fluid, the blacks are like a black hole, and elements (fire and water) make you feel them.
The operating system is the new OS and is far superior to the operating system of the CX. If like I was, your debating between the CX and GX (and can afford a little extra money) go with the GX.
The pictures below are of my actual mounted TV, not stock pictures. And I don’t even have the protective plastic film taken of yet.
Helpful(0)Unhelpful(0)You have already voted this
★★★★★
LGGX2021 –
Nice flushed mount and image in amazing. Quick connectivity to all streaming applications.
Helpful(0)Unhelpful(0)You have already voted this
★★★★★
twentyeightgreen –
Before my review, here is a quick summary of how I made the decision to buy this particular TV. After doing a bunch of research, I narrowed my search to 77″ LG GX and the 65″ Sony A90J (both selling for the same price at the time). I went back and forth for a few days but ended up choosing the GX based on how far away we sit from the TV (around 15″) and a general consensus that no one ever regrets going bigger. I also took a hard look at the 2021 version of this TV (the G1) but could find only minor differences: slightly newer chipset, “brighter panel”, and a new version of WebOS. Although I rarely use WebOS (we almost exclusively stream through an AppleTV), I do appreciate the minimal design of the older version of WebOS included with the GX and the fact that you can turn off the ads. Most importantly, the 2021 G1 was out of my price range and unavailable for purchase.
I paid to have the unit wall mounted using the included mount and also had them add power behind the TV. It was well worth the $200 cost. It looks beautiful on the wall and frames the area very well. There is only a minor gap to the wall, maybe a finger-width. Unless you plan on hooking up no wires to the TV (including a power cord), you will most likely have a small gap as well.
My previous TV was my 13-year-old Pioneer Elite Kuro 5010 plasma, a top-of-the-line TV at the time which still performed well but had no support for 4K. I can’t underestimate what a difference it is going from 50″ to 77″ and from 1080P to 4K, especially with how far we sit from our TV. We actually sit even farther away when eating dinner in our dining area and the larger TV is a vast improvement.
Because we are using the new 4K Apple TV almost 100% of time which defaults to DolbyVision, no calibration was needed. I have it hooked up to the LG SP8YA soundbar and overall, the setup is very simple and clean. In fact, we are able to use the sleek Apple TV remote almost exclusively (unless we want to watch live TV via our HD antenna, which is rare). The picture quality is amazing and I’ve never felt like the TV wasn’t bright enough. In fact, sometimes I feel it is too bright and am tempted to turn the OLED Light settings down. So I’m definitely not regretting my decision to go with the GX instead of the “brighter” G1. I will say, we tend to watch TV in the evenings and have no windows directly facing the TV.
As far as features, we don’t really use WebOS (since we use our Apple TV for all streaming) so I can’t speak to how well it performs. It has Airplay, but I’ve disabled it since we AirPlay directly to the soundbar (for audio only) or to the AppleTV (audio & video). It also has voice recognition but I found that it was too sensitive, even when adjusting the sensitivity in the settings. Speaking of that, it has a slider bar to adjust sensitivity, but the bar literally only has two positions – all the way to the right or to the left. So it’s more like a giant on-off switch than a slider. Hopefully they address that with a firmware update. The only other feature I’m excited to try is the NextGen ATSC 3.0 over-the-air signals when some finally come out in my area, hopefully in late June. Some reviewers may feel differently, but I love the included Magic Remote. I would have no problem using it exclusively if we weren’t using the minimal AppleTV remote instead.
Overall, I’m very satisfied and would recommend purchasing this TV before they are all gone while the price is so low (and hopefully Best Buy is still including the free $350 gift card w/ purchase). I really don’t think the 2021 version is different enough to justify the additional cost and if you plan to use WebOS, the 2020 version of the software would be better for those who prefer minimal design and no ads.
Awesome –
I would have to say; this is the best TV I have ever owned. The color black is True Black, and the colors are amazing. I love the Art Gallary screensaver. The template provided for the installation was a waste of time, don’t bother – use painter’s tape as you measure the wall to figure out the dimensions. I don’t use the interface as we use Roku.
This is a definite buy; You won’t regret the purchase.
Awesome –
Awesome tv Phenomenal picture specially with all the natural light I have coming in my living room I would highly recommend this TV
Francis –
I’ve owned this TV for about a few weeks now coming from a 2015 L.E.D TV and I enjoy every minutes of it. HDR movies is outstanding SDR contents look fantastic and sports. Also my XBOX Series X and PLAYSTATION 5 IS LOOKING A++++ now just waiting for Sony unlock the VRR feature. This TV is the best Gaming TV you can get right now. I would definitely recommend this TV to anyone
Kevin –
Very happy with my first OLED TV purchase. Having LED tv’s I was concerned with the brightness levels but this has an amazing picture and sits super flat against the wall.
Brian –
The best picture quality of any TV and the sound is amazing for TV speakers. The only TV that is possibly better is the Sony A90J, but its several thousands more. The only issue are the wall mounting anchors and they are terrible. They don’t work. The wall mount is smaller then standard width to mount on studs. I had to mount into one stud and buy special dry wall anchors to support the tv. I uploaded a photo of the drywall anchors i used. At first, i used the anchors that were given and they pretty much came out of the wall. The TV would have fell off if I didn’t mount onside into a stud.
Deviantmethos –
I purchased a few big screen tv’s over the past year and returned them all. I was worried ablit spening $3500 on this tv and having “buyers remorse”.
I have absolutely, unequivocally 0 buyers remorse. The color is amazing , the motion is fluid, the blacks are like a black hole, and elements (fire and water) make you feel them.
The operating system is the new OS and is far superior to the operating system of the CX. If like I was, your debating between the CX and GX (and can afford a little extra money) go with the GX.
The pictures below are of my actual mounted TV, not stock pictures. And I don’t even have the protective plastic film taken of yet.
LGGX2021 –
Nice flushed mount and image in amazing. Quick connectivity to all streaming applications.
twentyeightgreen –
Before my review, here is a quick summary of how I made the decision to buy this particular TV. After doing a bunch of research, I narrowed my search to 77″ LG GX and the 65″ Sony A90J (both selling for the same price at the time). I went back and forth for a few days but ended up choosing the GX based on how far away we sit from the TV (around 15″) and a general consensus that no one ever regrets going bigger. I also took a hard look at the 2021 version of this TV (the G1) but could find only minor differences: slightly newer chipset, “brighter panel”, and a new version of WebOS. Although I rarely use WebOS (we almost exclusively stream through an AppleTV), I do appreciate the minimal design of the older version of WebOS included with the GX and the fact that you can turn off the ads. Most importantly, the 2021 G1 was out of my price range and unavailable for purchase.
I paid to have the unit wall mounted using the included mount and also had them add power behind the TV. It was well worth the $200 cost. It looks beautiful on the wall and frames the area very well. There is only a minor gap to the wall, maybe a finger-width. Unless you plan on hooking up no wires to the TV (including a power cord), you will most likely have a small gap as well.
My previous TV was my 13-year-old Pioneer Elite Kuro 5010 plasma, a top-of-the-line TV at the time which still performed well but had no support for 4K. I can’t underestimate what a difference it is going from 50″ to 77″ and from 1080P to 4K, especially with how far we sit from our TV. We actually sit even farther away when eating dinner in our dining area and the larger TV is a vast improvement.
Because we are using the new 4K Apple TV almost 100% of time which defaults to DolbyVision, no calibration was needed. I have it hooked up to the LG SP8YA soundbar and overall, the setup is very simple and clean. In fact, we are able to use the sleek Apple TV remote almost exclusively (unless we want to watch live TV via our HD antenna, which is rare). The picture quality is amazing and I’ve never felt like the TV wasn’t bright enough. In fact, sometimes I feel it is too bright and am tempted to turn the OLED Light settings down. So I’m definitely not regretting my decision to go with the GX instead of the “brighter” G1. I will say, we tend to watch TV in the evenings and have no windows directly facing the TV.
As far as features, we don’t really use WebOS (since we use our Apple TV for all streaming) so I can’t speak to how well it performs. It has Airplay, but I’ve disabled it since we AirPlay directly to the soundbar (for audio only) or to the AppleTV (audio & video). It also has voice recognition but I found that it was too sensitive, even when adjusting the sensitivity in the settings. Speaking of that, it has a slider bar to adjust sensitivity, but the bar literally only has two positions – all the way to the right or to the left. So it’s more like a giant on-off switch than a slider. Hopefully they address that with a firmware update. The only other feature I’m excited to try is the NextGen ATSC 3.0 over-the-air signals when some finally come out in my area, hopefully in late June. Some reviewers may feel differently, but I love the included Magic Remote. I would have no problem using it exclusively if we weren’t using the minimal AppleTV remote instead.
Overall, I’m very satisfied and would recommend purchasing this TV before they are all gone while the price is so low (and hopefully Best Buy is still including the free $350 gift card w/ purchase). I really don’t think the 2021 version is different enough to justify the additional cost and if you plan to use WebOS, the 2020 version of the software would be better for those who prefer minimal design and no ads.