If you've performed all of the steps above and your phone is still running poorly, it's time to weigh the benefits of upgrading your phone. First, a newer model device shouldn't have slow-down problems, so it's probably best to reach out for individualized support before rushing to buy another one. Next, if you have an older device with limited storage space, things are only going to get worse. The older the hardware and software, the more problems you will have with updates, slow-downs, and even app compatibility. Lastly, if your device has physical or liquid damage, key internal components can fail to perform correctly. Over time corrosion and exposure to the elements will cause your device to slow down, overheat, and eventually stop working altogether.