Quad hd screen resolution. Quad HD screen resolution in smartphones: is it necessary?
One of the noteworthy features of the Dell XPS 13 is its display. However, do you need all those pixels?
This is a question many users ask: Buy Dell XPS 13 with touch display Will QHD+ or regular Full HD be enough? The question is quite serious, because the display is an integral part of your computer
After all, you want to enjoy the picture?
But besides appearance There are still factors to consider before clicking the "Buy" button. Let's try to help you understand them.
Price
The better specifications, the higher the price. This has always been the case and the Dell XPS 13 is no exception. So if you're on a budget or just want to get the most for the lowest price, then you can cross this great display off your shopping list.
By comparing prices in the US for Dell products, we suggest you decide which version - QHD+ or full HD - you should buy.
*Standard Display - $799-$999
* Touch display - $1,499-$1,999
This difference largely determines the choice. The cheapest version with a touch display costs $1,399. The same option with a standard full HD display costs $799. The difference is $600. But it's not that simple, because touchscreen computers have other worthwhile characteristics, which we will now talk about.
But if price is the determining factor, then read no further. If you don’t want to overpay $1,400, it’s better to purchase the option with a Full HD display.
Technical characteristics beyond the display
The QHD+ display is a non-standard feature of the computer, which means that you get a lot of other goodies along with it. For example, processor Intel Core i5 and 8GB random access memory. Compare to $799 model with Core processor i3, 4GB of RAM and HD screen.
The most best version computer with full HD display XPS 13 is equipped with Intel processor Core i5, 128GB hard drive and 8GB RAM. It will cost you $1,000, and the SSD's capabilities alone are enough to make you disappointed in the purchase. Although, with a little knowledge and a screwdriver, you can improve the device yourself.
Battery life
The more pixels, the more power consumption. I have a version of the XPS 13 with a QHD+ display and an Intel Core i7 processor and it takes me 6 hours before I start looking for a power outlet.
Dell says 1080p models will last up to 18 hours on a single charge. Since I have no way to check, we’ll take their word for it. But in any case, such a computer will work several hours longer.
The size of the battery inside the XPS 13 will not change no matter how you upgrade it, so the “gluttonous” Hardware will reduce the time of use without recharging.
However, no matter your choice, Dell has quality battery Power Companion, which extends the runtime of full HD XPS 13 computers by 10 hours. Power Companion is an external power supply for laptops. You replace them standard block power and it charges your laptop. If you go somewhere, take it with you, and in case of a long working day you will be sure that your computer will not turn off.
And yet... the QHD+ display looks amazing!
This is true. And if you create any content and spend hours in Photoshop, then you will appreciate this device. The 1080p display is good too, but it's impossible not to be taken in by the brilliance of the high-resolution display.
Clear text, bright colors, and you can touch it all.
Sensory capabilities are not Windows innovation 10, since they were present on Windows 8, but they have many advantages for operation. Therefore, it is worth purchasing a computer with such a display in order to use them.
Let's sum it up
It all comes down to personal preference and we can't say for sure which option to choose. But on at least we can give you some advice.
If price is a deciding factor, then buy a computer with standard display. Even the most expensive option will cost you $400 less than the cheapest touchscreen laptop. And this is a large amount.
Also, if you plan to spend a lot of time away from outlets, choose an option with a smaller set of technical specifications. Even if you purchase an external power supply, it will not be that expensive and will extend the life of your computer.
But if you want to enjoy the benefits high resolution screen, don’t delay your purchase. I can tell by personal experience- This is wonderful. You will never get tired of looking at it. Just be prepared to shell out for a computer like this more money. So much money.
In general, there is no exact answer which is better. No matter which option you choose, you'll be getting the best laptop you can buy. But carefully consider the pros and cons before you pull the trigger.
Every user knows what's what higher resolution screen, the better. However, this is not always the case. Today we will look at the resolution and find out whether it is different from Full HD and whether it is worth paying extra for it.
What is Quad HD resolution?
Display resolution is 2560 x 1440 pixels. This resolution appeared quite recently, but has already managed to conquer the flagship smartphone market.
Is Quad HD different from Full HD?
On paper, the two resolutions are different. However, to the human eye the differences between them are almost invisible, especially with a small screen diagonal. But Quad HD resolution needed for VR, and this is its main purpose.
Cons of Quad HD
Despite the fact that Quad HD resolution is much higher than Full HD, it is not always wise to overpay for it. Firstly, the human eye is unlikely to notice the difference between Full HD and Quad HD on a smartphone screen. Secondly, high resolution requires more resources. Because of this, the device's battery will drain quickly.
If you go to a store to buy any device with a display, from a smartphone to a TV, you will be faced with some rather confusing terms and letter abbreviations that you must be able to decipher in your head in order to understand exactly what resolution. screen you are dealing with.
This is the only way you can distinguish one model from another. In this article we want to explain the differences in standard terms and screen resolutions that are used to describe these devices. Do not forget that image clarity, the number of pixels per inch, depend on both the screen resolution and its size.
In other words, a picture on a display that has 2560x1440 pixels will look very sharp on a smartphone, but will not be so if it is stretched on the screen of a 40 or 50 inch TV. Just remember that more pixels does not always equate to sharper images, as image dimensions matter too.
Let's start with more low level: with HD or High Definition. When the term first appeared, in relation to televisions it meant any display that had 720 rows of pixels or more, and usually corresponded to a screen with a resolution of 1280x720 pixels.
The Full HD level has already increased the number of rows to 1080 and corresponds, as a rule, to a resolution of 1920x1080 pixels. In the early years of HD television, references to Full HD were found in both 1080i interlaced and progressive scan 1080p (progressive). Interlace technology was a throwback to older televisions, in which one field showed the even lines of the picture, and the next field displayed the odd lines, dividing each frame of the picture into two.
Progressive scan 1080p, on the other hand, paints the full picture for each frame and is therefore considered preferable. These days, you'll almost always only see 1080p (unless "i" or "p" are mentioned at all). And if no letters are specified, then this most likely corresponds to 1080p scan. 
QHD, WQHD and 2K
Display resolutions didn't stay at Full HD for long, and the next step up the ladder was Quad High Definition, or QHD, the 2560x1920 pixel standard on many flagship phones today.
You can fit four 1280x720 screens inside a QHD screen, which is why the word "Quad" is used, meaning a group of four similar objects.
Many phones still use Full HD, and the question "can you see the difference on a 5 or 6 inch screen?" is controversial. This suggests that this feature of a phone definitely looks better on its specification sheet, which is why many phone manufacturers have gone for this improvement.
It's often confusing that a similar description is sometimes given to WQHD or Widescreen Quad High Definition to emphasize the 16:9 aspect ratio. Indeed, both WQHD and QHD refer to the same specification feature.
There is also 2K resolution, sometimes specified by manufacturers, and from a technical point of view it can refer to any display that has big side screen exceeds two thousand pixels (for example, if the screen has 2048x1080 pixels).
However, WQHD and QHD are also often labeled as 2K because they are half the height and half the width of 4K. So there are three different designations for the same display resolution. 
4K and UHD
4K resolution first appeared as a cinema standard in a 4096 by 2160 pixel format, hence its name 4K. But in consumer electronics it's been converted to a 3840 by 2160 pixel format, which doesn't have four thousand in its specs, but is four times the resolution of Full HD (you can fit four Full HD screens into one 4K screen).
UHD (or Ultra High Definition) also means 3840 by 2160 pixels. Some people like to keep the distinction between 4K and UHD, but the term 4K today is used for game consoles and televisions so often that it is already used as an abbreviation for the resolution of 3840x2160.
Many hardware makers put the "4K UHD" label on their products to cover both capabilities, while technically the "2160p" label could also be used to denote both 4K and UHD.
There are so many pixels in 4K (over 8 million) that there's no point in packing them into a smartphone display (although some have tried). You will most likely see this resolution only on large monitors and TV screens.
Other display resolutions
The permissions described in this article are the main types you may encounter in your online travels, but there are other permissions as well. full list has Wikipedia. Some manufacturers already offer 5K (5120x2880) or 8K (7680x4320), but it's unclear whether the human eye will really be able to tell the difference even on the most big screens? Therefore, whether these formats will ever actually be used remains to be seen.
When you go to a store to buy a device with a display, be it a phone or a TV, you come across some rather confusing terms. You better understand them before making the right decision. One of the main characteristics is the screen resolution you need.
We will explain to you the difference between in standard terms And better to tell one model from another, we're here to explain the differences between the standard terms and the resolutions they correspond to, but don't forget that the sharpness of your display, pixels per inch, depends on the resolution and screen size.
In other words, a 2560 x 1440 pixel display will look sharp on a smartphone, but it won't look as great when stretched across 40 or 50 inches of space. Just remember that more pixels doesn't always mean a sharper screen, as dimensions are important too.
HD AND FULL HD
Let's start from the end, HD is High Definition. The term was first applied to televisions and meant having 720 rows of pixels or higher - a common resolution combination is 1280 x 720 pixels.
Full HD raised the number of rows to 1080 and the typical resolution became 1,920 x 1080 pixels.
QHD, WQHD and 2K
Full HD screen resolution did not remain for long; the next step was Quad High Definition, or QHD - 2560 by 1920 pixels. This is standard on many flagship phones right now. It is noteworthy that the name Quad was used for a reason - four 1280 x 720 pixel displays fit into one QHD.
Many phones still use Full HD. It is very difficult to find a difference in image quality on a 5 or 6 inch display. But the presence of Full HD in the technical characteristics still looks attractive. That's why many phone manufacturers are going for it.
The same technical characteristics are inherent in WQHD or Widescreen Quad High Definition, but in in this case attention is also paid to the 16:9 aspect ratio, which guarantees high quality Images. But in fact, the specification of WQHD and QHD is the same.
The next one is 2K. The term is used quite loosely in the industry. But from a technical point of view it can refer to any display larger than 2000 pixels (2048 x 1080 for example). However, WQHD and QHD are often referred to as 2K because they are half the height and width of 4K.
4K and UND
4K first appeared as a cinema standard with 4096 by 1160 pixels, hence the name 4K. But in consumer electronics it has changed to 3840 x 2160 pixels. So there are 4,000 out of stock. But at the same time, 4K can accommodate four Full HD.
UND or Ultra High Definition means the same as 4K - 3840 by 2160 pixels. Some share these terms, but most use 4K for both gaming devices and TVs.
What awaits us in the future
These were the main terms that you will encounter in your online travels in search of the devices you need.
But there are others. Some manufacturers are pushing ahead with 5K (5120 x 2880 pixels) and 8K (7680 x 4320 pixels). But even with massive screens, it's hard to tell whether the human eye can really tell the difference.