The best 4K smart TVs between 40 and 50 inches

The dumb box has become a pretty smart box. The habit of watching what a few channels broadcast has undergone a huge transformation. We no longer see what they are broadcasting (which was said before), but what we want. And when we want to, not when they put it on.

But for us to really take advantage of the new television, it is not only necessary to be subscribed to one or several platforms. We need devices that give us access to the wide world of the new television.

But today’s televisions have evolved in such a surprising way, that to choose them it is better to be informed, because they are almost customizable and we can even connect them to social networks.

So as well as entertaining and bringing us together, the television has become another window on the world, the experts have selected some of the televisions that meet all these characteristics and that also provide us with excellent image quality. And the favourite is the Samsung MU7055 Smart TV 4K.

What should I look for when choosing a TV?

Choosing a television is not easy if we analyze each of its components. Each feature determines the total picture quality and performance a TV can provide. And to make a good buying decision, it’s very important to know what each of the numbers on the box, or on the shop/website sign, means. And here we explain it.

Screen size, resolution and viewing distance

To choose the right screen size you need to consider the distance at which the TV will be used and the resolution of the TV.

The screen size of televisions is shown in inches (1” = 2.54 cm). This measure indicates the diagonal of the screen, which is linked to the aspect ratio.

The most common standard of aspect ratio is 16:9 (stretched or widescreen), that is, every 16 cm of screen length, there will be 9 cm of height. Other very common standards are 16:10 (very similar to 16:9) and 4:3 (practically square screen) although the latter is much older and in disuse.

The screen resolution indicates how many pixels (dots) it has. Of course, the higher the number of dots, the more detailed the images will be displayed and the less “pixelated” they will look (also called aliasing).

Today the most common resolutions are Full HD at 1920×1,080 pixels, and 4K UHD at 3,840×2,160 pixels, four times higher than Full HD resolution.

The HD Ready resolution (1280×720 pixels) is already obsolete for top brand televisions, although there are still some that have them in stock.

But the resolution alone does not have an absolute meaning, because although it tells us the number of dots on the screen … is not the same as that data is for a screen of a smartphone that a 50” TV. And that’s where the concept of dots per inch or pixel density per inch (dpi, ppi or dpi) comes from. This value indicates the dots that fit in a square inch; the higher the value, the higher the quality and definition of the image.

But let us not get crazy with this data either, as we might not need some big numbers at all and thus a high price.

In order to really get an optimal view of the screen, that is what it is all about, the first thing to think about is how we will use it.

Because we will need something cheaper if we are going to limit ourselves to watching TV channels, which most do not even broadcast in full HD.

TV Options

LG 49UJ651V - 49’ Smart TV (4K UHD, 3840 x 2160 resolution, IPS, HDR x 3, Ultra Surround 2.0)

Elegance is not at odds with price. In LG 49UJ651 TV shows a stylish design that, along with a silver perimeter frame ultra-thin, allows you to enjoy the maximum of 49” that offers its panel.

The detachable silver two-legged V-shaped base is fully integrated into the design. You can place the TV on a piece of furniture or hang it on the wall using the VESA anchorage. It integrates perfectly with the environment, thanks to its 11.5 kg and its ultra-fine thickness of only 7 cm.

The small, barely visible perimeter frame does not detract from the 49” of the 16:9 ratio panoramic panel. With a native 60 Hz refresh rate, the LG TV lets you enjoy everything from the most dynamic action movie to the latest generation of video games without any delays or flickering of the image, as its response time is no longer than 20 ms. The 4K Ultra HD resolution of 3,840×2,160 pixels brings you into the picture in great detail.

The IPS technology panel with Direct LED backlighting offers greater uniformity across the screen. It also ensures a viewing angle of up to 178° without affecting the image quality, enhanced by the “Ultra Luminance” and “Local Dimming” functions, which improve the brightness and level of detail in every image.

Although we have a large viewing angle thanks to IPS technology, the contrast is very poor at 800:1, not even reaching the limit of 1,000:1 that this technology can offer. The lack of contrast means that in dark environments the black loses depth and looks more like a very dark blue, affecting the image quality; in bright rooms the image quality is not affected.

The 10 bits of the image panel, considerably improve the color range to achieve greater realism. The use of HDR technology and support for HDR10 and HLG helps to improve the image by increasing the contrast level. A major achievement of LG is its HDR Converter technology that emulates this image quality on displays that do not have it, thanks to a powerful image processor. The brightness is quite low, not exceeding 350 nits (350 Cd/m2) even with the HDR technology activated which improves it considerably.

LG’s WebOS operating system allows you to enjoy a wealth of content and high quality 4K HDR streaming video from the Netflix and YouTube platforms, among others. A simple menu and a fast interface thanks to its 4-core processor, with access to different applications organized in a simple way to enjoy entertainment to the fullest.

The remote control is simple but effective. If you want a smart remote with more features (“Magic Remote”), you have to buy it separately.

In terms of connectivity, we highlight the Wi-Fi AC (two-way) with WiDi technology (for wireless video transmission) and Bluetooth to connect our mobile devices to the TV (compatible with Miracast) or to use Bluetooth wireless headphones.

With 4 HDMI 2.0 ports, 2 USB 2.0 ports (one of which is a recorder), 1 3.5 mm jack port, 1 optical digital audio output, 1 RF antenna socket with DVB-T2 digital decoder, 1 coaxial digital satellite TV socket, 1 AV input and 1 RJ-45 Ethernet port. Connectivity is not a problem for this TV, whatever our requirements.

Two integrated stereo speakers with 20 W joint power, are capable of reproducing high fidelity HI-FI sound through 7 virtual channels, which send the sound in multiple directions and achieve a surround effect.

Its A-grade power rating gives us the indication that it is not one of the most energy-efficient models on the market.

Sony KD49XE7005 (49”)

A TV with neat lines and a nice look. Its 49” screen with a narrow frame and the channelling of the cabling through the bracket help us so that nothing distracts us from the image.

If we want to hang it on the wall, the ultra-slim design of 7 cm, the compatibility with VESA anchorage and the 11.4 kg weight, will make the task easier without breaking the aesthetics.

The 49” panel in 16:9 format, is 4K Ultra HD high resolution LED technology, with 3,840×2,160 pixels backlight

Favourite: Samsung MU7055 Smart TV 4K (49”)

An aesthetic and technological wonder that belongs to the seventh series of Samsung televisions, a combination of elegance and high performance at a good price.

A perfect design with a lightweight finish and very modern and Smart content at an unbeatable price. The ultra-thin frame imitates the effect of brushed aluminium and gives it an “infinite” effect that is barely visible from a distance, making its 49” panel even more striking. It should be noted that the support base has a novel design to hide the cables, providing greater aesthetics and minimalism, and avoiding annoying cables.

Compatible with the VESA standard and weighing only 14.3 kg, we can hang the TV without depending on any extra furniture or taking up space elsewhere.

The television has a 4K Ultra HD image resolution with 3,840×2,160 pixels, which allows you to observe an infinite number of details in the image with spectacular realism. Its 16:9 format will wrap you up and let you immerse yourself in it while watching a movie in Movie Mode, or enjoying your best game in Gaming Mode without suffering any screen delay, thanks to the dynamism offered by its 60 Hz refresh rate.

The 3,000:1 contrast, achieved by the VA technology of the LED panel it mounts, shows more intense white tones and deeper blacks highlighted in turn by the new “Precision Black” technology. Although the contrast is much higher than the IPS panels mounted on other televisions, which are no more than 1,000:1, the viewing angle is quite small, between 45 and 50 degrees, well below the 178 degrees that IPS technology can achieve.

The TV MU7055 is developed for the use of HDR10+ technology, which achieves much more realistic images. To achieve this, it relies on the Active Crystal Color function, on a 10-bit image panel, capable of reproducing more than 1 billion colors and a point brightness of up to 1,000 nits.

Samsung offers us “Smart Hub” entertainment and fun without limits with a set of features for all tastes, its wide range of applications allows us to enjoy streaming services in 4K resolution offered by Netflix, the world famous video platform YouTube or digital music from Spotify, among other apps.

In addition, the TV comes with the remote control “One Remote Control”, which allows us to control all connected devices, manage applications or browse the Internet comfortably helped by its voice control function that integrates a microphone in the control, an option available if the TV is connected to a Wi-Fi wireless network.

The TV has a “One Connect” port located on the back, connected by a single cable hidden in the base to an external mini junction box, thus avoiding seeing all the connections on the back and being able to hide them. This external mini-box has 4 HDMI ports, 3 USB 2.0 ports (one of which is a recorder), 1 RJ-45 Ethernet port, 1 optical digital audio output (compatible with Dolby Digital Plus and DTS), 1 RF antenna socket with DVB-T2 digital decoder and 2 coaxial digital sockets for satellite dishes.

It also allows high-speed Wi-Fi connectivity, Bluetooth (compatible with Miracast and wireless headphones with this technology) and the DLNA function for sharing multimedia files from any mobile device connected to the same Wi-Fi network. It has the function of “Auto Detection” capable of recognizing which device you have connected, and that along with the Smart View application designed to easily control the TV from our mobile or tablet, make its connectivity unparalleled, although it misses a 3.5 mm audio jack output.

In terms of sound, the Samsung MU7055 has two 20W speakers on the bottom which, together with the Dolby Digital Plus certificate and a built-in wofer, offer more than acceptable sound quality.

This model has an A+ energy rating, a television that is classified as very efficient and ecological in terms of energy consumption.

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