A smartphone is a phone that runs on an operating system like android,IOS,windows,blackberry OS and etc.To put it simple, smartphones are like a combination of PC and cell phone. Generally, all smartphones have the ability to surf the internet,play music and videos,capture photos,serve as a gps and also it's core function,to make calls.
Basically,what makes a smartphone smart is its connectivity to the internet.Smartphones allow you to integrate all the functions above to the internet and totally change the way you connect with people. Let's say,you just snapped a great photo,you can then put on some effect to make it look really professional,then share it on instagram/facebook for your friends to view.In the past,that would mean transferring the photo to the PC followed by using an editing software,then choosing the file from your PC to upload to the internet. Lost in the city while driving? You can simply turn on the GPS feature on your smartphone and instantly regain your sense of direction,which is a privilege you are unlikely to have in the past.The possibilities are endless,with so many unique applications(apps) being produced,your smartphone can do so much more for you than you can ever imagine.They will become part of your life.