There's a range of different operating systems to chose from, each with their own unique features and benefits. Check out all the most popular below.
A mobile phone's operating system, or OS for short, is essentially the software that it runs on. The three most popular operating systems are Android, iOS and Windows.
The manufacturer of your smartphone will be a good indication as to which operating system you're using. If you have an iPhone, you'll have iOS. If you have a Windows Phone, you'll be running Windows 10. And if you have anything else, you'll most likely be on Android.