Apple products are well made and they are definitely built to last. But, a device that is used heavily will eventually breakdown.
Here is an overview of the most common issues with a little detail of the warning signs, along with an explanation of what you can do to solve those issues.
Broken screens are the most common issues. Sometimes you can still use the screen, but normally doing so is not a good idea. A cracked screen will allow dust and moisture to get into the device where it will cause more damage.
If your phone or tablet starts to take longer to charge or does not fully charge the chances are your battery is going. Simply replacing the battery can solve this issue. However, if you find that you have to jiggle your charger to get your device to charge the chances are the charging port needs replacing.
In certain areas it can be difficult to get a signal, but if that starts to happen in places where you normally have a good signal it can be a sign that your antenna needs replacing. The same is true if you have issues connecting to Wi-Fi.
Moisture or dust under the screen
If you see droplets or dust under the surface of your screen the seal on your phone, iPod or iPad may have been breached. It is important to get this checked and repaired if necessary.
If you live somewhere like Miami Apple repair getting a repair done is easy because there is a firm in the city that carries out repairs. In smaller cities and towns it is a little harder to find an Apple repair service, but fortunately, some city based repair firms will accept devices via the post.