I should say it's likely you can upgrade your current device because the new version of Apple's mobile operating system, iOS 6, is compatible with most but not all previous-generation devices. You can simply update your iOS device over the air via the device's Settings, or you can connect it to your computer and use iTunes.
Over the air The easier of the methods is to grab your iPhone, iPad, or iPod Touch and update wirelessly. Before doing so, however, it's wouldn't be a bad idea to sync your device with iTunes if you haven't done so in a while. There have been instances with past iOS updates where users have reported the new iOS didn't install correctly, bricking their phone and forcing them to restore their phone before trying again.
Tap the button, agree to Apple's terms and conditions, and either heed or ignore Apple's advice to connect your device to a power source during the download to save battery. After restarting, you'll be greeted by a shiny, new iOS 6 lock screen. Slide to open your device and click through the following four setup screens: Update via iTunes If you are near your computer with iTunes, it might be faster to update this way.
In my experience, updating my iPad 2 via iTunes was faster than updating my iPhone 4S over the air. The first order of business is to update iTunes to version Once iTunes is up-to-date, connect your iOS device.
Click on your device under the Devices header in the left-hand column and click Check for Update. Click the Download and Update button. Or, if you are going to need your phone in the near future, opt for the Download Only button to download it now and install later. Once the download is complete, keep your iOS device connected until it restarts.
After restarting, you will need to hop through four setup screens before you are off and running with iOS 6. On my iPad 2, the process looked like this: You can also read our complete guide to iOS 6. Big features, tiny tweaks: Up close with iOS 6 4: