Mobiles

The 6 Most Important Specifications When Choosing a Mobile

The 6 most important specifications when choosing a mobile
The 6 most important specifications when choosing a mobile

As long as a new mobile phone is on the market, everyone will notice the lengthy mobile phone specification sheet, but it is also at a loss as to whether this new mobile phone is equipped with an interior equivalent to the price? In this article, the editor will explain the 6 most important specifications when choosing a mobile, so that everyone can have a clearer concept when choosing a mobile phone in the future, and know whether they have chosen the right one mobile phone.

  1. Processor/Chip (CPU)
  2. Memory capacity (RAM)
  3. Storage space (ROM)
  4. Camera specifications
  5. Screen size/resolution/material
  6. Battery capacity / fast charge

Processor/chip CPU is the heart of mobile phones

Getty Images/iStockphoto Mobiles CPU

The processor is the most important heart of a mobile phone, and it is the SOC (System On Chip), also known as the chip. First, let me introduce how to interpret the identity of the chip. Take the chip mounted on the “LG V60 ThinkQ 5G ” as an example. The mobile phone processor/chip specification “Qualcomm® Snapdragon™ SM8250 Octa-core 2.8GHz” means:

  • Qualcomm® Snapdragon™ SM8250: The chip brand and chip code, which represent the quality and ability of workers.
  • Octa-core: The number of cores, which represents how many workers can divide labor.
  • 2.8GHz: Clock, representing the work efficiency of workers.

After knowing how to interpret the specifications of the processor/chip, how to distinguish the specifications of the mobile phone?

  1. Refer to the running scores on the Internet: websites such as Antutu will test most mobile phones.
  2. Look at the positioning of the chip: The current major chip brands are Apple, Samsung, Huawei, MediaTek, and Qualcomm. The first three are only used on their own mobile phones, so the chip positioning can be seen according to the price of the mobile phone. The last two can follow the beginning Judging by the size of the number, the higher the number, the higher the level.
  3. Actually use mobile phones to play games: Use this to see whether the screen of the mobile phone is smooth and judge the quality of the mobile phone specifications.

Finally, I want to remind you that a high running score does not mean that this mobile phone is absolutely fast. The running score value is the most desperate peak performance of the mobile phone. Normally it may not perform so hard; and the running speed of the mobile phone with the same score may be due to the system platform design and There are differences between the built-in software’s consumption performance and the user’s usage habits (installing many unused apps, etc.).

Mobile phone memory capacity (RAM)

The so-called mobile phone memory capacity is only the multi-functionality of the mobile phone (that is, it can run several apps at the same time), and the memory capacity (RAM) is just to facilitate the user to temporarily store more apps in the background, saving time for reloading. This leads to a better experience, but it does not actually make the phone run faster. In principle, the key to making the device smoother is still the CPU processor/chip.

Phone storage space (ROM)

Storage space (ROM) is how much stuff can be loaded into the phone. No one would think that the storage space is large, but storage space (ROM) is also different; in the case of Andriod, there are two types: eMMC (embedded MultiMedia Card) and UFS (Universal Flash Storage), which can be thought of as computers The solid-state drive SSD and traditional HDD, as for the iPhone, use the faster NVMe.

Introduction to phone camera specifications

The editor first briefly explains the following commonly seen mobile phone specifications:

  1. Lens focal length and angle of view: The angle formed by the center point of the lens and the imaging diagonal is called the angle of view of the lens, which is the field of view during shooting. The larger the angle of view, the wider the shooting range, and the 14mm means the wider shooting range than 28mm.
  2. Aperture: It is a circular hole in the middle of the camera lens of a mobile phone. The size of the aperture is generally expressed by F/xx, so the smaller the number, the larger the aperture value. For example, the aperture of F/1.8 is larger than that of F/2.8. Since the larger the aperture, the more light enters, and light is one of the important factors that determine the quality of a photo. Therefore, if you want to take a good photo, the aperture value is one of the specifications that cannot be ignored. Therefore, the aperture of a smartphone camera is definitely The bigger the better.
  3. XP Lens: x is a number, and the size of the number represents the number of lens elements. The lens is the object that images the shooting scene on the sensor, which is equivalent to the “eyes” of the camera. Generally speaking, mobile phone lenses are mostly composed of plastic lenses, and P (Plastic) represents lenses made of plastic. The more lenses there are, the more realistic the image will be. For example, the 6P lens has 2 more lenses than the 4P lens.
  4. AF: AF is the abbreviation of Auto Focus, Chinese means autofocus. Since it is called automatic, it means that it is faster than the manual. It can complete the focusing process while pressing the shutter, so of course, you can take good pictures easily.
  5. Pixel (pixel): The pixel size of the photo. The larger the pixel, the larger the zoomable size when outputting the photo, and of course the larger the file capacity. At present, more and more mobile phone brands are launching ultra-high-pixel cameras. Although pixels are the basic elements of digital photos, theoretically the larger the pixels, the clearer the details, but does high-resolution mean high-quality? Not necessarily! The editor believes that the most important thing is to consider the lens resolution, the size and quality of the photosensitive element, and even the ability of each mobile phone brand to adjust the software.

Mobile phone screen size / resolution / material

admin | Tech Gut Mobile phone screen sizes

There are three specifications for the mobile phone screen:

  1. Screen size: This is very intuitive, it depends on personal preference.
  2. Screen resolution: Take the “Samsung Galaxy S20 Ultra 5G” mobile phone screen specifications as an example. The screen resolution is 3200 x 1400 pixels (511ppi). The so-called pixel refers to the smallest unit that constitutes a dot-matrix digital image (the square in the figure below); while PPI is pixel per square inch (pixels per square inch), how many pixels are packed in each square inch.

Looking at it this way, you will feel that the larger the pixel or the PPI, the better, but in fact, the human eye will not be able to recognize the pixel when looking at a screen with more than 300ppi at a certain distance (about 25-30 cm). The Retina (retina) screen introduced by Apple is this concept. Therefore, the larger these numbers are indeed the better the presentation of the picture quality, but it is still recommended that you check the actual device before buying a mobile phone, and it is more appropriate to choose the screen color you like!

  1. Screen material: There are currently two widely used mobile phone screen materials, one is LCD: it is the light-emitting layer behind the screen, the light shines through the RGB pixels to show colors, just like you put the colored paper in front of the flashlight; One is OLED: it is itself a pixel that emits light, it can be directly bright without a light-emitting layer, so the color performance is better. However, OLED has a life limit, and the mobile phone may encounter burn-in problems after using it for a long time.

Mobile phone battery capacity / mobile phone fast charge

Regarding the battery capacity of a mobile phone, most people think that of course the larger the better, because this means that the standby time of the mobile phone can be longer, but in fact, the most important thing is to look at the battery life and fast charging ability of the mobile phone. The so-called endurance refers to the normal The standby time at work is related to the power consumption of the phone itself. Of course, the user’s operating habits also influence the performance of battery life. If you always open a lot of apps and operate in the background without closing, the power consumption of the phone is relatively It will be higher.

Next is to look at the fast charging function of the mobile phone. The so-called fast charging is a technology to increase the charging power of the mobile phone within a reasonable range so that the mobile phone can quickly replenish the battery. There are currently 2 types of fast charging for mobile phones:

  1. High voltage and small current: Increase the input current to improve the charging efficiency. Most of the early fast charging concepts are based on this principle. For example, Qualcomm’s Quick Charge 2.0/3.0 can achieve “9V/2A” charging with 18W power. The disadvantage is that the phone is prone to overheating.
  2. Low voltage and high current: Increase the input current of the mobile phone interface (for example 5V/4A USB Type-C). The advantage is that the heating components during the charging process are set in the charger to prevent the phone from overheating.