Is the iphone 3gs like the iphone 3g, 2g, and 1g?

Ibought an iphone 3gs 16gb on ebay so i wanted to know if it was worth it.

Its better, and newer than the 3g 2g and 1g… But it is slow

You'll be able to the Basics Fine: Texting, Calling, Web, and a few apps. Just not sure if any of the NEWEST apps support the iOS 4.x that the 3GS runs… Overall its okay, just don't expect it to compete against any recent phones…