Apple presented the meawhile seventh major iteration of their operating system iOS, which is compatible to the iPhone 4 and newer, the iPad 2 and newer as well as the fifth generation of the iPod Touch and newer. If you now think, that you get all the new features on every device, we have to disappoint you.
| iPhone 5 | iPhone 4S | iPhone 4 | iPod Touch | iPad 4 | iPad 3 | iPad 2 | iPad mini |
AirDrop | Yes | | | Yes | Yes | | | Yes |
Siri | Yes | Yes | | Yes | Yes | Yes | | Yes |
Panaroma | Yes | Yes | | Yes | | | | |
Real-Time Camera Filter | Yes | Yes | | Yes | | | | |
Picture Filter | Yes | Yes | Yes | Yes | Yes | Yes | | Yes |
Square Format / Swipe Recording | Yes | Yes | Yes | Yes | Yes | Yes | | Yes |
iTunes Radio | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Overall it is interesting to see, which Apple device supports which feature. A closer look at the iPad 2 shows, that it only supports iTunes Radio whereas the newer iPads support quite a few more features. Apart from that it is interesting to see that the iPod Touch from the fifth generation onwards support all the new features.
Source:
Apple