The smartphone changed how we think of computers. In the past, a computer was a dedicated device that did little else and that had to be wired into the network to access the internet. Laptops started to do away with this by making portable devices that could use wireless technology, but it was the phone that really changed the game forever. Suddenly, anyone who wanted one could have a computer in their pocket at all times. It's no wonder that smartphones tend to be expensive. They're essentially just miniature computers, and the phone function is an afterthought for a lot of users.