Not so. PPI (pixels per inch) is the unit of image resolution, representing the number of pixels per inch.Therefore, the higher the PPI value, the higher the density of the display screen.Of course, the higher the display density, the higher the fidelity.Therefore, mobile phone manufacturers now also take the PPI of mobile phone screen as a selling point of mobile phone promotion.In addition to ppi, color saturation, etc., it is enough that the human eye cannot distinguish pixels. Different materials and display technologies have their own advantages and disadvantages, and they are more comfortable to see. The higher the image is, the more delicate the image is. It is said that Qualcomm has created a screen with more than 570 ppi, which does not consume much power and has grayscale contrast. However, the current mainstream screens generally do not differ much in terms of color restoration, which is also known as the retinal screen.
In fact, you don't understand that the refurbishment of mobile phones is generally through improper means. For example, thieves steal the phones and sell them to the refurbished buyers. Although they say they are a little old, they can't see any flaws from the outside through the polishing of the refurbisher. But the refurbished people will paint the shell with spray paint, and the house will paint the shell with baking paint after using the refurbished machine for a period of timeA former classmate of mine has used a refurbished black v3 of moto. After using it, the paint has blackened its hands. And like the current refurbisher, when refurbishing, he will also unload parts from the old mobile phone, because the mobile phone parts will also make huge profits. Now a Bluetooth can be sold to about 50. When he sells it to you again, you seem to have nothing. In fact, the mobile phoneIt has been paid by the refurbisher
Refurbishment machines, no matter what they are, are used by others. Although some old machines are good, it does not mean that others will have dust and other things when they use them. That will affect the machine. The longer the machine is used, the worse it will be. It is also the case that all electrical appliances need to be coated with plastic film
