Though the phones are fairly sturdy and hold up well under normal wear and tear, there are some things that no phone could stand up to. To understand what is going to be bad and potentially damaging for your phone, you need to understand how it works, so you can avoid problems in the future. The phones are very expensive and should be treated just as well as you would treat any other electronic device. This can be tough because phones are mobile and there is a tendency to toss them into a bag or slip them in your pocket. Though this can be safe, it can also be dangerous for the phone and cost you a lot of money in the future.
Most of the fingertip touch phones work through a combination of sensors and circuitry. These things work to monitor changes in a given state, including electrical current. When a finger or stylish is placed on the front of the phone. Some phones work through sound or light waves and when you put your finger on the phone, it blocks these things. That is usually not the case for Apple products. The capacitive models use a layer of capacitive material, which holds an electrical charge. When you touch it, the amount of the charge is changed. In resistive models, the pressure causes conductive and resistive layers of circuitry to touch each other, which changes the phone's resistance.
The phones usually work well to detect the location of the touch. If a user tries to touch it in several places, the results are crazy. Some phones ignore all of the touches, while others detect each touch but are unable to determine the appropriate command because they often change along an axis, rely on system-wide averages or take measurements based on a baseline.
In the case of the Apple products, there are multi-touch capabilities. It is possible to zoom with your thumb while spreading the same image apart with a finger. To return to normal size, you use your thumb and finger together. The unique feature of the Apple phone is its ability to detect touchp points and movements simultaneously.
What this means for a user is that several components of the phone can become faulty. Through a variety of problems such as too much pressure, too much stimulation, too much friction when not officially in use and general wear and tear, the touch features can become desensitized. A lot of people are finding they must replace components of their phones as they wear out and stop working. If you understand how the touch phones work and how to keep yours running effectively, you will save yourself a great deal of money.