iPad 2 and iPad 3 website testing

Is there a way in the Apple iOS Simulator to test a website on an iPad 2 and an iPad 3? I have the latest version of xcode and iOS Simulator. I believe the resolution difference on the devices are causing some issues for a site, which I’d like to debug.

If the iOS Simulator does not offer an option, is there any other way of testing on these devices without actually owning both?