iPhone 3Gs and all later model of iPhone
iPad 2 and The New iPad
iPod Touch - the 4th and 5th Generation.
UPGRADE YOUR iDEVICES.
There are two way you can upgrade your iPhone, iPod or iPad. You either upgrade using Wi-Fi Connection (Over the air) or you upgrade via iTunes from you computer.
*It is advisable to backup your phone before carrying out this upgrade.
1. Upgrade Via Wi-Fi Connection (Over the air)
- Go To Settings > General
- Tap Software Update
- You should see iOS 6 listed, with a Download and Install button below it. Tap the button (See below)