In this article I talk about a Sony XBR TV-55X905E. The Sony X905E series has the best LED TVs of the Brazilian currently. They have 4 k and HDR technology, use Android OS TV and a series of algorithms to deliver an excellent picture.
Until mid-December, My TV from the room was a Sony KDL-46HX755, Smart, with 46 inches, Full HD and 3D. When the first 4 k TVs began to appear, didn't pay much attention to them. The justification was the lack of content. Remembered as the Full HD content only if popularized several years after the first Full HD TVs hit the market. And the Full HD had in your favor that the TV be programmed to migrate to this format. As far as I know there is no prediction that open TV or even the TV closed will have 4 channels anytime soon.
Blu-rays 4 k are practically nonexistent in Brazil. And anyway, for years I haven't been in a video store. Buy movies? My last purchase was in 2014, to Peanuts 1970 Collection Vol. 1 and 2, and still was an exception, because the previous purchase was in 2009 USA, and just to have movies to test on the Playstation 3 I had just bought.
Netflix 4 k? I've always heard that had little content 4 k and it was necessary to have Internet with at least 25 Mbps of download bandwidth. And I still had only 15 Mbps and 10 Mbps with my two providers, both without possibility of upgrade to 25 Mbps.
Until last year I got the Minix Neo U1, My first 4 k source. But the situation started to change with the acquisition of Playstation 4 For, I did in July in Italy. Then I finally had a 4 k and HDR source being under-utilized due to I don't have a compatible TV, being that the games I was playing were already compatible with 4 k, mostly.
From Dai, spent to monitor better the tv market 4 k HDR, and started planning the purchase of a in a more or less distant future. With the promotions of black friday I almost did my purchase, but resist. Then appeared the Christmas promotions and finally I decided to treat myself to a new TV, that came just before Christmas.
It is worth noting that another factor that weighed against a 4 k TV was the lack of 3D. I like the effect on my previous TV and regretted his death decreed by TV manufacturers. But there came a point where I rarely played or watched anything in 3D, and when he still had to remember to recharge your glasses previously. I realized that 4 k and HDR were resources that I use always, and 3D was a feature that I rarely used. So it seemed like a good exchange. And anyway, I kept the Sony KDL-46HX755, only I changed it.
The choice of the Sony XBR TV-55X905E
Those who follow the submit your Blog already know that I have a certain preference for Sony when it comes to TVs. I'm not fanboy of marks, for example: I've had the camera Sony, but I prefer the Canon. But with TVs I believe Sony is the brand that usually deliver better products in Brazil.
Furthermore, I have good experiences with the TVs Sony. A Sony XBR TV-55X905E It is the sixth TV Sony in the family. The first was a CRT, that's already sold a few years ago. The rest are LCD and everyone in the family to this day. The earliest you should be 10 years. Three of them are with me, including XBR-55X905E. Only a (the second LCD) malfunction. And it was a few minutes after being installed for the first time. A Sony It took a few days, because it was Christmas period, but brought another and led to defective, Without cost, under warranty. No other problem occurred with any of these TVs, neither in or out of warranty.
On the other hand, Samsung is a brand that I have not had good experiences. Problems with cell phones and brand monitor me away from her. Batteries bowing, bowing capacitors, multiple pixels waging… I prefer to avoid.
Panasonic is a brand that also consider good. I have a Panasonic Viera TV 40 ″ TC-40DS600B, which I mentioned here in Skooter Blog. But just not bought Sony at the time because she simply abandoned the market for TVs with smaller screen. Panasonic is my second choice in TVs.
Philips I also don't trust very. I've had some problems with the brand, including a CRT TV. Is another brand that I'd rather avoid.
Por fim, LG is a brand that I haven't had the experiences, except for CD burners/DVD/Blu-ray, We are not a big deal. It would be perhaps a third option, But if possible I'd rather not take a chance with something as expensive as a TV. It's better than the first experiences with a brand other than less expensive products.
AOC, Philco and Semp Toshiba I don't put too much faith. Other brands? Even less. I have good experiences with Dell and Viewsonic monitors, but they don't make TVs in Brazil.
With the chosen brand, It was time to choose the model. The model A1, What is OLED, It certainly is the best. But the price is prohibitive. Furthermore, OLED is still a new technology, very promising, but whose durability is still a concern. On the other hand, LED TVs are already consolidated and at the height of what technology can offer. The contrast has improved a lot in recent years, I still keep a little less than offered by other technologies.
Yes, I know that the LG manufactures a TV OLED (55B7P) much cheaper than the Sony, but she is still considerably more expensive than the XBR-55X905E. And there would still be summed up the factors: new durability technology not yet known + high price + I have no experience. Ditched her too.
So now the search is about LED TVs Sony. Requirements? Have 4 k and have HDR. The HDR today is as or more important than the 4 k. With HDR have much better contrast. Size? The previous TV was 46 inches, so I would like the new have the same size or greater. However not much bigger, because my room is small and my rack It's getting pretty crowded on account of my video games.
Dropping rows with absurdly high prices, that leaves only two: X905E and X700E. The X905E line has TVs of 55, 65, and 75 inches, as I mentioned. The X700E lines have TVs of 49 and 55 inches. So far both meet me.
But when we start to compare other items, the scales begin to tip heavily in favor of the X905E line. She has type backlight “Direct LED”, While the X700E line uses LEDs on the edges (“Edge LED”). In the first, the reduction of background light is with “local dimming”, While the second uses the frame light reduction. For these and other, certainly the X905E have a contrast better, and that's essential for HDR content, In addition to also make a difference for content “common” (SDR).
Other differences are image processing technologies. The X905E line has the processor X 1, According to Sony, performs “advanced algorithms that eliminate noise, improve the details and generate images defined, sharp and realistic.”.
Other technologies with pretty names created by the unique marketing X905E are the “Super Bit Mapping ™ 4 k HDR” and to “TRILUMINOS ™ Screen”. Triluminos screen “brings a wider color palette, reproducing faithfully every hue of colors”.
Another point where X905E stands out is the native pane of 120 Hz, Although this refresh rate is only valid for Full HD content. The Panel's X700E 60 Hz. With MotionFlow XR technology, the X905E comes to 960 Hz, Although this number is more marketing that something really relevant.
Por fim, the X905E series also differentiates itself by relying on the Android operating system, In addition to having an HDMI input to more. I was determined, era of X905E that I would.
The last task was to select the size. There the price spoke louder and chose to stay with the smallest of them, that is to XBR-55X905E with 55 inches. This is also the maximum size that my rack behave without me having to give up some devices. And while I like the idea of having several of my current and classic video game all installed and ready to use.
The purchase of the Sony XBR TV-55X905E
Despite the price of Sony XBR TV-55X905E be around the R$ 6.000,00, in promotions she normally costs less. In Black Friday the lowest value registered was around the R$ 4400,00. My just acquired by R$ 4.751,99 in Sony's corporate website.
Purchase made in 09/12/2017. Pay slip in 11/12. Invoice generated in 12/12. Delivery is made in 18/12. It was until well fast, Since the maximum period of delivery was much bigger.
Unboxing and installation
A Sony XBR TV-55X905E comes in a different packing of other TVs I've ever had. She's got some locks (white plastic on cardboard) that must be released to that box come out all over, and the TV is supported at the bottom of the packing.
I mounted the feet, do you use support in the TV room. With the help of my wife fit the TV mounted feet. Then, We took her to the rack. She is not too heavy and the dimensions are: 1228 x 707 x 60 mm. With the support she gets 1228 x 772 x 259 mm.
Anyway the Assembly and installation, with the feet that is in Control Panel, that's a job for at least two people.
The remote control for Sony XBR TV-55X905E account with microphone for voice commands. A lot of people don't like him, but I don't have anything against. I got a little early to be used with the control layout of the old TV, but soon got used. His model is RMF-TX200B and works with 2 pilhas AA.
Tests and Prints
I do not intend to make a review detailed and technical. People specialized in it doing a much better job. I recommend reading the review of X900E in Rtings, because it is essentially the same TV. There many tests with numerical results and their explanations. The results of the TV, by sinal, are very good, confirming your position as best LED TV of the Brazilian currently.
Another very useful source of information about this TV is topic in HTForum. Are 952 pages at the time I write this article, but those who make it through at least part of them certainly very well informed about this TV.
Also do not discuss here the TV features that I never used, exclusively for lack of interest. Some examples:
- Have not tested the WiFi her, because use Ethernet wired network. Obs: my network is Gigabit Ethernet, but the door is only Fast Ethernet (100 Mbps).
- Not tested or games joysticks, because I'm not a big fan of any games on Android.
- Not tested HD or Flash drive connected to the USB ports, because I'd rather access the videos directly from my NAS.
- Have not tested the native video player, as far as I can tell it doesn't open network files.
So, leaving the technical specifications and systematic testing of side, What I'm going to show you here are my own impressions of TV, difficulties that I found and how I turned them.
Connecting HDMI cables
The first thing to know when installing is that not all of the HDMI ports are equal. Only the HDMI inputs 2 and 3 are able to display 4 k content in 60 Hz and colors 4:2:2 or 4:4:4, and only when the option “HDMI format improved” is enabled. The other ports are limited to 4:2:0.
The HDMI input 2 was the one who chose to call the Playstation 4 For, so that he could use the RGB color system (4:4:4). Note that it only uses RGB when not in HDR mode. In HDR mode the colors pass to YUV 4:2:2. This is not TV or limitation of Playstation 4 For, but the own default bandwidth HDMI 2.0 b. As HDR uses 10 bits instead of 8 bits para codificar cada componente, não há largura de banda suficiente para 4:4:4 em 4K e 60Hz. 4K HDR 10 bits com RGB (4:4:4) in 60 Hz só será possível com HDMI 2.1, que veremos talvez nas TVs de 2019 e no Playstation 5. 😉
A porta HDMI 3 é a porta ARC. É nela que liguei o meu receiver, the Yamaha RX-A830. This receiver tem entradas e saídas HDMI 1.4 somente. Give way, ele só consegue trabalhar com 4K até 30 Hz, e nada de HDR. É por conta disso que eu precisei ligar o Playstation 4 For diretamente na TV, do contrário eu continuaria limitado a resolução Full HD e sem HDR.
Ligar equipamentos diretamente na TV e usar o ARC dela para transmitir o áudio para o receiver é uma opção, mas ela traz um grande inconveniente. O protocolo ARC só tem largura de banda para passar áudio PCM 2.0, Dolby Digital e DTS. This isn't a limitation of the TV, but the own ARC Protocol. There's no way to pass PCM 7.1, DTS-HD Master Audio or Dolby TrueHD, for example, they are all lossless formats, high-bandwidth.
These problems will be solved by the new standard eARC, It also will come with the HDMI 2.1. But, again, still no products supporting these standards and we can only use them when we have TVs and receivers them.
Give way, connecting the Playstation 4 For diretamente na TV, you lose the high-definition multichannel audio (without compression). By default the console will send PCM 2.0 (also without compression, but only stereo), but it can be configured to encode the output in Dolby Digital and DTS, giving up the lossless format in favor of more channels.
To work around this problem some Blu-ray players 4K comes with two HDMI outputs, being an audio-only, but unfortunately is not the case in Playstation 4 For.
Between high definition audio or 4 k and HDR image, many open hand of high-definition audio to 4 k + HDR. De fate, the difference in the image is most notable. Few people can tell the difference between a DTS and a DTS-HD, for example. But this setback on audio bothered me. I ended up making a upgrade on the receiver shortly after, but I leave that story for another article.
For those who prefer a stopgap solution, the only one I found is a device called AVR Key 18Gbps, that has an HDMI input and two outputs, one for video and one for audio. But the cost of the device is high (US$ 150,00) and needs to be imported, expensive shipping and tax risk. Furthermore, It serves for only one device, then it would be necessary to use one of these to each device or uses it in conjunction with a HDMI switch. Ultimately, ends up being less costly change receiver.
Testing the different sources
I will show some pictures, but keep in mind that they are here only to illustrate the article. Photos of the TV screen naturally are not representative of the image seen in person. The ideal is to view the TV in person before you buy, as much as the settings are not the most appropriate, and the content is not representative of what you actually use. I did this in a local store Fast Shop, I sat in front of the TV and watched the video statement for a few minutes. It also helped me in choosing for this TV.
With the TV installed, My first test was with the TV. Like all digital channels work with 1080i, the TV comes to do the de-interlacing and the upscale to for 4 k. And she does it very well, so that even the image of the TV look cute on her.
In general, contents 1080 get good resized to 4 k. It is only with resolutions smaller than artifacts begin to be visible. The analog TV of course looks good poor.
Playstation 4 For
The Playstation 4 For, by working with 4 k and HDR natively, gets a fantastic image. The SDR for 4 k Full HD HDR is great. As predicted, the console sends RGB (4:4:4) When the content is SDR and YUV 4:2:2 When the content is HDR.
Leaving the “Image mode” on automatic TV, It will automatically enter in the mode “Game” When the source is Playstation 4 For. In the mode “Game” There is less processing of the image and the latency (input lag) decreases to less than 35ms. Out of the way “Game”, the latency can pass of 100ms. Therefore, use the mode “Game” for games is important.
Tested also the image of my Blu-ray player. He is of 2012, does not support 4 k or HDR, but I do not wish to exchange it because I do not wish to rent or purchase movies 4 k or HDR, because they aren't even available in Brazil and imports them the price becomes prohibitive. With the Blu-ray player sending the image in 1080 p, the TV will do the upscale to for 4 k. As the Blu-ray 1080 p content is typically compressed and without many artifacts, the result is very good.
The Nintendo Switch also works with 1080 p, leaving in charge of TV upscale to for 4 k. The cartoon-style graphics are the best come out in the process of resizing. So the result here is also excellent. With the Nintendo Switch the TV automatically switches to the mode “Game”.
The Playstation 3 is another source, the threshold is 1080 p. The pure and free images of artifacts also help in the task of making the TV upscale to for 4 k. Great results. But, or so “Game” is not selected automatically. The games that run in 1080 p do better than the games that run at 720 p, because the latter tend to have a larger aliasing effect. But it is worth remembering that games that run in 1080 p already tend to have simpler graphics, with more solid colors, What ends up making upscale to. Games with graphics in style cartoon, like Castle of Illusion, shown in the photos, also take advantage, even when in 720 p.
Minix Neo U1
The Minix Neo U1 supports 4 k and to detect the TV already sends the signal that resolution by default, both the menus and content playback. At the time I didn't have 4 k content to test, so I used some 1080 p movies and series. Notice that, in this case, the upscale to is being done by the Minix Neo U1. Content playback I use a version of XBMC, Minix and modified that lets you synchronize the refresh rate of the video TV running.
Later I tested 4 k content with the Minix Neo U1 and he also did very well. It is also great for display pictures, because my current work with cameras 4608 x 3456 and 4000 x 3000, so that less is wasted when viewing them on TV 4 k when compared to a Full HD TV.
The next test was with my mini PC, the MSI Cubes 2. Strangely he did not submit image when connected to Receiver Yamaha RX-A830. Connecting directly to TV it worked by default in 1920×1080 and 75 Hz. This refresh rate may be the explanation for which he did not work via receiver. I could have tried to force a lower refresh rate and connect it via receiver again, but I chose to avoid fatigue.
It is worth noting that the MSI Cubes 2 supports 4 k in 60 Hz, but just for the mini DisplayPort output. The HDMI output uses the version 1.4 and, therefore, is limited in 1080 p on 60 Hz or 4 k up 30 Hz. I even bought a mini DisplayPort to HDMi adapter and I am hoping to get, but in this case it is almost certain that it does not transmit audio, because although you can by specification, few manufacturers implement the audio via DisplayPort.
One drawback to connect the MSI Cubes 2 directly to TV is that the sound is limited to stereo, via PCM 2.0, on the limitation of the ARC of what I told you. When connected to the receiver It can send multichannel audio, as PCM 7.1 or other settings. This problem was resolved with the exchange of receiver, of which I will speak in another article.
Classic consoles via Framemeister
In this case, the Framemeister does the upscale to 1080p, and the TV will do the upscale to for 4 k. Typically TVs are not good to do upscale to ancient Islands, because they have optimized algorithms for video, making the new interpolation pixels as a weighted average of neighboring pixels in the original image, What makes the image “blurry”. In the case of old video games, Typically we only want to increase the size of the original pixels, getting a pixelated image, but sharp. That's why the Framemeister does a better job than a TV on upscale to.
There are still no upscalers of games that work with 4 k, so the best we can do today is to let the first upscale to with specialized hardware for 1080 p and let the TV do the rest. In this case, the jump to the Framemeister makes 240p for 1080 p is great, because they are of 4 a 5 times the amount of original lines, Depending on the zoom settings. On the other hand, the jump from 1080 p to 2160 p full is only 2 times the amount of rows, so that the algorithm does not affect the TV image.
It is worth mentioning that with the Framemeister the TV does not make the automatic adjustment to the “Game”, so it is necessary to select it manually. Otherwise, latency tends to get in the way.
The image of the Sky is probably the most painful of my sources, with excess pressure in many cases. With a larger screen and better, artifacts tend to become more visible. But, It depends on the channel and content, Some are better than others. Watching the Winter Olympics on SporTV, for example, the image seemed very good. The SD channels, on the other hand, usually look terrible.
Android TV menu
Android TV menus are a bit different than I was used to seeing in Sony TVs. At first I was a little lost to find the settings, but soon got used to it and today I can say I like the interface.
Installing applications via shop is also very quiet, just like on a mobile, and can be made by own PC, as with other Android devices.
The application of the Netflix in the operating system Android TV It's as good as Playstation 4 For. That way I don't need to connect the video game to watch movies on Netflix. My old TV had Netflix, but I'd rather use the console because the interface was better and faster, While the TV was an older version and slower.
The 4 k content still isn't as broad, and the HDR is even smaller, but fortunately is increasing. There are few 4 k movies, but series already has a considerable amount. Netflix's own productions are also, in your vast majority, with 4 k and HDR. Most series I've been watching are already at least 4 k, and some are also HDR.
By pressing the key display You can view the bandwidth that is being used, as happens when you press the R3 button in Playstation 4.
I figured it wouldn't be able to take advantage of the 4 k content and HDR in your maximum data rate because of my Internet connection, but to my pleasant surprise, my ISP has increased the download bandwidth of my connection to 30 Mbps in December, without any warning. Apparently they were auditioning for a promotion that would come in January. Since then I have the 30 Mbps and can see the Netflix with the highest bandwidth currently: 15,26 Mbps, that is enough to see the 4 k content and HDR without artifacts. It is worth noting that half of it is enough to see 4 k content and HDR, but in this case the compression is greater and this is reflected in image quality.
But, There are limitations. One is that HDR is not supported on Youtube. This is a limitation of the Youtube application on Android TV, that does not occur with the Chromecast Ultra. So, to watch video HDR on Youtube you need to give more money to Google.
There are also limitations on account of the ARC. I didn't get to test, but remember that in my previous TV, If I send something with DTS sound to the Chromecast connected to the TV, the sound was transmitted only as PCM 2.0 for the receiver via ARC. But calling the Chromecast directly to the receiver, He transmitted the DTS sound, without conversion.
Another flaw that I noticed is that the TV does not appear in the list of devices available for streaming when it is switched off, even though I have left enabled the option so that it is available.
Limitations to the, the Google Cast worked great. On one occasion he didn't want to work and I had to restart the application that handles the functionality.
Kodi / SPMC
I really like the application Kodi, successor to the XBMC. Also like the SPMC, which is also derived from the previous two. A version of XBMC is what I use in Minix Neo U1 to watch videos and view photos.
But in Sony XBR TV-55X905E they didn't work as well as I'd like. To begin, they don't “Discover” the other network devices. To access my in I had to type his name directly.
With the SPMC, I was only able to send audio LPCM Stereo, No matter what I did in the settings. With the Kodi I managed to transcode DTS and DTS-HD for Dolby AC3 and at least get multichannel audio 5.1. I already knew that DTS-HD he wouldn't be able to send to the receiver on the limitation of the ARC, but I expected that at least the DTS passthrough he was able to do. That was not the case.
The settings to put the refresh rate of the screen equal to the video, as I do on Minix Neo U1 apparently do not work in either of two applications.
Por fim, the interface is only in 1080 p, You can't put in 2160 p full. This does not affect videos, to change the screen resolution at run time, but for photos the 1080 p is a limit problem.
Ultimately, the Kodi on TV is only good for those who do not have receiver. For those who have, It is better to use an external player and enjoy both the 4 k resolution and HDR as high definition audio.
To complete the deception, downloaded a remux to test movie, in 4 k and HDR. Kodi and SPMC failed miserably. One jam after another. Then I tested the same movie in XPMC of the Minix Neo U and he performed perfectly (only without HDR because it doesn't support) and with Dolby TrueHD.
A lot of people complaining about changes on the TV screen when viewing it from an angle that is not the ideal. I didn't notice distortions in Sony XBR TV-55X905E of any of my couch.
Anyway I like sitting in front of the TV as possible to watch. I don't understand these complaints from people who want to watch TV on an angle totally out of the ordinary. Or the family is too large, or the layout of the environment needs to be optimized.
Problem and Solution
In this section I will describe a problem that occurred with my Sony XBR TV-55X905E and how it was resolved.
On one occasion, the image of my Playstation 4 For started to fail, giving a few blinks, and when he appeared with a noise in that appeared white spots flashing (salt and pepper noise type, but without pepper). This type of problem is typical of cable, so I tried to change the cable, but failed. I tried to change the port receiver (He was already linked in the new receiver at time), tried swapping the cable from receiver for the TV, tried swapping the port on receiver. The deal only worked when I turned off the TV while holding the POWER button to shut down the Android, and then I called again. After that it worked perfect, including the cables that were before. And the problem never came back to occur.
Thereby the hint: If you see some strange bug, before you go messing with cables try simply restarting the operating system Android.
It didn't happen to me, but I hardly use other applications in addition to Netflix. The more likely it is that these bugs will appear with who uses many third-party applications. Are the ills that come with a more open operating system.
I noticed that many people have problems with HDMI cables when they use 4 k and HDR. The old cables don't always support the HDMI standards 2.0 and HDMI 2.0 b. I realized that many buyers of Sony XBR TV-55X905E had problems with cables, so I thought it would be worth quoting the ones I'm using, because I haven't had a single problem with HDMI cable.
The cables that I was already buying and recommend, with HDMI support 2.0 in the specification, are the HDMI cables of Vention. Also use the original HDMI cable Playstation 4 For smooth. Even my Monster Cable fake worked without problems with 4 k and HDR.
Keep in mind: Smart TVs are overrated
It's nice to have a TV with Android, where we can install and run applications, play files directly, etc. even with the limitations of the ARC and with the “Built-in Chromecast” not as good as a Chromecast Ultra.
But let's be realistic, in a few years, the most likely scenario is that the Sony abandon TV, He's going to stay with the same version of Android forever, or perhaps Google itself abandon the Android TV, He never received much attention there.
With the time, getting applications incompatible with older versions of Android, and eventually will no longer work or will have new features.
This is already reality for those who bought a Sony TV model 2011 (has Netflix Neither Youtube) or 2012 (has Netflix, but without new features, has Youtube).
At this point, If the TV still serves well in image quality, the business is starting to devices such as Chromecast or TV Boxes, like Minix NEO U9-H, costing a small fraction of the price of a new TV, and be happy.
Smart TVs have always been overrated. The manufacturers drop support too early. It is better to let the cleverness of the TVs in cheap devices that can exchange each 2 or 3 years, as typically do with cell phone, and maintain the cycle of updates of the TVs at reasonable intervals, from 5 a 10 years.
Generally speaking, I can say that I am quite satisfied with my Sony XBR TV-55X905E. The images are fantastic with 4 k content and HDR. Even with 1080 p content on TV doesn't make ugly, and overcomes common Full HD TVs.
In the heel of the CRT TV for TV LCD Full HD I noticed that some content still were best on CRT TV, notably the SD content. But in the case of the hop Full HD TV for the TV 4 k, There's no such problem. The upscaler the TV works fine. So even if the offer of 4 k content and HDR is still small, the TV keeps paying off.
For those who have a Playstation 4 For or a Xbox One X, the TV is definitely worth, because the difference is large. Although not all games use 4 k resolution native, only the HDR already gives a big impact.
If I buy the TV again? In December 2017 yes, I'm sure I made the right choice for the season, and boasts very well these past 2 and a half months, that included the Christmas period, New Year, recesses and my estimated vacation.
If I'd buy again today? Maybe. Because Sony is about to launch the line 2018, that includes the model SBR-55X905F, that has some improvements. Of course, the new model will likely be more expensive at launch, so it is necessary to assess whether the improvements are worth the extra cost. On the other hand, It is possible that the old line more cheaply in one or another store to sell off old stock. And to complete the dilemma: is year of World Cup, so it's possible that we have some good TV promotions there for half the year. I'm even happy to be with my on hand so you don't have to face this decision.
I forgot about one of the items that I had planned to speak, What is the distance between the TV and the Viewer. There are some tables on the Internet trying to say what is the ideal distance to watch TV, Depending on the size, or what the ideal size TV given the size of the room.
I think that these tables are all stuck. Many of them do not take into account the resolution, and this is very important. The higher resolution, greater need to be TV or closer we need to be for the higher resolution can actually be perceived. What good would that do have a 4 k TV and cannot tell the difference between a 4 k image and another Full HD?
That's why a TV 4 k of 32 inches, for example, probably wouldn't make sense. No one is so close to a TV to know the difference. On the other hand, a monitor 27 inch 4 k makes sense. I have one 5K 27 inches in my work and I notice the difference when I come home and use the Full HD 24 inches. But that's because I get to half a meter of the monitor.
Another factor that no table considers is nearsightedness. I'm short-sighted. Without glasses or contact lenses, I'm barely able to tell the difference between a 4 k image and an image 240p to VCD. With glasses I see with the same sharpness that a normal person, but with a detail: everything gets smaller! So, a TV 55 inch looks smaller for me than a person without vision problems. I understand this difference when using contact lenses. Suddenly everything gets bigger, including my cell phone screens, my monitor and TV. Give way, a myopic glasses typically need a TV larger than a person with normal vision, given the same distance between the TV and the Viewer.
Having said all this, I usually watch TV sitting at 2 meters of the screen. This distance was enough for me, glasses, know the difference between 720 p and 1080 p on Sony KDL-46HX755 of 46 inches; Today, This distance is enough for me to see the difference between 1080 p and 4 k on Sony XBR TV-55X905 from 55 inches. But look… just for a little! Depending on the content or if I go a little bit further I can't understand this difference.
With that I say without fear of error that, If fit in my budget, I'd buy the XBR-65X905E, from 65 inches, even getting to just 2 metres away from the screen. Of course, so I'd see more flaws in images of lower resolution, even more if you were to contact lenses instead of glasses, but for 4 k would continue perfect.
Adding some pictures of Sony XBR TV-55X905E submitted by Archana:
Updated the information about the image of the Playstation 3, to comment on the games that run at 720 p, who are the vast majority.
Also fix the information that selects the TV mode “Game” automatically to the Playstation 3. This does not happen. Of the Islands that I have, She makes the automatic selection only for the Playstation 4 and Nintendo Switch.
A Sony XBR TV-55X905E can be acquired in the following stores: