Specifications of Smartphones - Size, Resolution and Protection

SCREEN SIZE        

The industry standard way of representing display sizes is publishing their length in inches. 

The screen-to-body ratio is a measure which relates to the size of the screen bezels. 
The BIGGER the ratio, the SMALLER the bezels are, meaning the DISPLAY takes up a larger area on the device's front.
Having a smartphone said to be 5 inchs doesn't necessarily mean you have a full 5inch screen for usuage

The Display to body ratio is a simple data that tells you how much of the surface the screen represents when compared to the whole device. 

For example, a device with a ratio of 50% would have as much body surface visible from the front as it has screen surface.

On the other hand, a device with a 100 ratio would have no visible body when looked at from the front.

Calculate the screen size. Enter your smartphone details:

SCREEN RESOLUTION

The industry standard way of representing screen resolution is publishing the number of pixels that form the two sides of the display rectangle. 
Usually, the display side that sits at the bottom when you hold the device in your hand is cited first. 
For the older alphanumeric displays the screen resolution is shown in screen lines or characters per screen line instead. In this case since there will be more pixels per an inch-long line of pixels on the smaller display, the image will look subjectively clearer and more detailed. 
The pixel density which is measured in pixels-per-inch (ppi) is very important.

An increased pixel density allows for more detail to be shown. 
Displays with a higher pixel density will give clearer and sharper images.

When choosing your next smartphone, it’s important to look at the pixel density on the display. 

A smartphone with low pixel density may give poor-quality images. 

Text legibility will also be limited – particularly on webpages where text is small. 

On smartphones with a higher pixel density, the legibility of text improves and further details can be seen in a photo or video. A high-end smartphone should have a pixel density of at least 300ppi.

However, a higher resolution uses more battery power and more processing power.

Calculating PPI  or you can simply install CPU-Z and check the Device tab

resolution definitions

Resolution Definitions are also often referred to by the smaller number of the pixel measurement. Eg:

1    1)    HD is sometimes called 720p,

2    2)    Full HD gets called 1,080p

3    3)    QHD is called 2K or 1,440p

4    4)    Ultra HD is called 4K  or 2,160p

HD

HD stands for high definition. HD simply means a pixel measurement of 1,280 x 720 pixels.

No matter how large the screen is, as long as the pixel measurement remains at this measurement, it's an HD display.

As you can probably tell, the smaller the HD screen the higher the pixel density and, theoretically, the better the picture.

So simply having an HD display doesn't mean much, as it will produce a very different image on a 5-inch screen from a 10-inch screen and a 4.3-inch screen.

Full HD

Full HD measures 1,920 x 1,280 pixels.

Again, the pixel density will depend on how large the screen diagonal is.

With smartphones at the 5-inch mark, the pixel density sits around 440 ppi, while on a 5.5-inch screen that number drops to 400 ppi.

Quad HD or 2K

QHD stands for Quad HD, which is four times the definition of standard HD.

The pixel measurement for QHD is 2,560 x 1,440 pixels.

A 5.5-inch QHD display has a pixel density of 538 ppi.

4K or Ultra HD

4K comes from the larger of the two pixel measurements. 4,096 pixels in 4K and only 3,840 pixels in Ultra HD.

Ultra HD is 3,860 x 2,160 pixels and 4K is 4,096 x 2,160. Both definitions frequently get shortened to 2,160p and the pixel difference is relatively marginal.

SCREEN PROTECTION

As touchscreen displays are growing larger in recent years, the need for enhanced scratch resistance and protection of the screens created the demand for usage of screen covers of increased resistance including chemically hardened glass.

Corning's Gorilla Glass is a popular brand of hardened glass used for high-end handset in the mobile industry.

Additionally, manufacturers has started applying oleophobic coating on top of its screens to make finger smudges less of an issue.











Credit: wikipedia, gsmarena, Androidpit

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Specifications of a Smartphone - PPI

Pixels Per Inch (PPI)

Working out the pixel density, or pixels-per-inch (ppi) of a device can give a good indication of how clear the screen of a smartphone can be.

Having a large device does not mean you will have a super-high resolution. Large screen devices will have a much lower ppi because the pixels are spread across a much larger area.

Calculating PPi

PPI refers to the number of pixels spread across the surface area of the screen, but because screens are measured diagonally it's not as straightforward as multiplying the pixel count going across the device by the number down and then dividing by the diagonal measurement.

The thing with ppi is that the larger the screen, the lower the ppi. This is because a larger screen means the individual pixels have to be larger to fill the space.

CALCULATE THE PPI OF YOUR SMARTPHONE

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Specifications of a smartphone - The Chipset

The Chipset

Mobile phones run on so-called embedded chipsets, which are designed to perform one or a few dedicated functions, often with real-time computing constraints. 
They are embedded as part of the complete device including hardware and mechanical parts.

The ever popular smartphones are equipped with more advanced embedded chipsets that can do many different tasks depending on their programming.

Thus their CPU (Central Processing Unit) performance is vital for the daily user experience and people tend to use the clock rate of the main CPU that's in the heart of the chipset to compare the performance of competing end products.

The clock rate of a processor is only useful for providing performance comparisons between computer chips in the same processor family and generation.

As mobile gaming is increasingly gaining popularity, users have become more aware of the various types of GPU (Graphics Processing Unit) chips that come as part of the mobile chipsets and sometimes even consider their performance when making buying decisions.

CPU (Central Processing Unit)
Also known as a processor - is an electronic circuit that can execute computer programs. Both the miniaturization and standardization of CPUs have increased their presence far beyond the limited application of dedicated computing machines. 

The clock rate is one of the main characteristics of the CPU when performance is concerned. Clock rate is the fundamental rate in cycles per second (measured in hertz, kilohertz, megahertz or gigahertz) for the frequency of the clock in any synchronous circuit. 

Engineers are working hard to push the boundaries of the current architectures and are constantly searching for new ways to design CPUs that tick a little quicker or use slightly less energy per clock. This produces new cooler CPUs that can run at higher clock rates.

The clock rate of a processor is only useful for providing comparisons between computer chips in the same processor family and generation.

Clock rates can be very misleading. Clock rates should not be used when comparing different computers or different processor families. Rather, some kind of software benchmarks should be used.

Smartphones are equipped with more advanced embedded chipsets that can do many different tasks depending on their programming.

The performance of the CPU that's at the core of the chipset is vital for the daily user experience and the general computing performance of the smartphone. 

Graphics Processing Unit

The GPU (Graphics Processing Unit) is a specialized circuit designed to accelerate the image output in a frame buffer intended for output to a display.

Modern smartphones are equipped with advanced embedded chipsets that can do many different tasks depending on their programming. GPUs are an essential part of those chipsets and as mobile games are pushing the boundaries of their capabilities, the GPU performance is becoming increasingly important.

Below is a list of top 10 GPUs you will find in most smartphones:

1. Adreno 330

Right now adreno 330 is the world fastest gpu for mobile phone. It is inbuilt in Snapdragon™ 800 Series Processors. Its speed can push to 3.6 gig pixels per seconds that’s why it is the fastest gpu for android in the world right now. So we can clearly say that it is the number one GPU available in market for android. 

2. SGX544mp3

The SGX544MP3 a clock speed of 533 MHz. 

3. SGX554mp4 

It has almost the same performance as SGX554mp4. This graphical processing unit is quad core but still Sgx544mp3 is slight better than this.

4. Adreno 320

Qualcomm has announced that this GPU using new and very high performance coding architecture and it’s 4 times better than adreno 225. 

5. Mali T604

First time it was used in Exynos 5 and Mali t604 is the 1st Midgard architecture GPU for arm. It is 5 times better than other previous mali graphic processors and it can go to single core to quad core.

6. SGX543mp3

This graphic processor has 3 core as its shows in its model name mp3. This GPU performing on higher clock frequency than SGX543mp2. 

7. Adreno 305

Adreno 305 is single core graphic processor but better than all the previous GPU made in adreno series. 

8. Adreno 225

Adreno 225 has used in msm8960 chipset with unified shader architecture and its supports dx9. Adreno 225 and 220 almost same but there is little difference in performance due to clock frequency speed. Adreno 225 runs on 400MHz whiles Adreno 220 run on 266MHz. 

9 Mali 400

It is the most used GPU for budget tablet and budget mobiles. The graphical performance of this GPU is capable of running some casual games. 

10 Adreno 220

It's inbuilt in MSM8260 /MSM8660 chipset the adreno claim that it can perform 88m triangles per/s. It is also a nice GPU for budget phone and it can play casual games like angry bird and temple run etc. The adreno also claim that adreno 220 performance 2 times better than adreno 205. 

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