I have an iphone 3, can i update the IOS?

I have an iphone 3, can i update the IOS?

Added (1). If yes how?

Added (2). If yes how? And also when i plug in my phone it sais UDB device not recognized

If you mean by iPhone 3G, you can only update it to iOS 4.2.1 where as the 3GS can only update to 5.1.1.

To Scott - The original iPhone was the 3. My wife got it when it first came out.

To OMG - plug it into iTunes and iTunes will give you what options are available.

There's no iPhone 3.

Either 3G or 3GS. It does matter in this case since the 3G can update to iOS 4.2.1 & the 3GS can update to iOS 6.0.1 (which is the latest)

Plug into iTunes & it will guide you through the process.

@WayneH: Um no. These are the iPhones since 2007
2007 - iPhone
2008 - iPhone 3G
2009 - iPhone 3GS
2010 - iPhone 4
2011 - iPhone 4S
2012 - iPhone 5

There has never been an iPhone known as the "iPhone 3".It surely will not have been the original iPhone. What sense does it make to call the 1st of a product the "3"? For some reason this "iPhone 3" thing started when the iPhone 4 debuted. Before that people correctly called them the 3G or 3GS.