IPod Touch (5th generation) iOS being iOS 6, iOS 7, iOS 8 and iOS 9. iOS 9 is said by Apple to feature performance improvements that may help the aging device function more smoothly. Other A5-based devices will also support iOS 9 including the iPad 2 (6 major iOS versions), the iPhone 4S (5 major iOS versions) and the iPad Mini (4 major iOS versions). iOS 9.3.5 is the last update that supports the iPod Touch 5th generation as it did not receive iOS 10 along with the iPhone 4S, iPad 2 and 3, and iPad Mini 1st generation due to hardware limitations. The
IPhone 3GS more favorable reviews mainly because it comes pre-installed with iOS 4. Jason Snell of Macworld praised the iPhone 3GS, saying that "the device's internal changes shines in the iOS 4 update, making the iPhone 3GS a worthwhile upgrade compared to its predecessor although a little too late compared to the iPhone 4." TIPB stated that "aside from hardware specific features like FaceTime, Retina Display, and gyroscope support, the bottom line is iPhone 3GS users are getting the same software that makes the iPhone 4 great." Shortly after the release of the iPhone 3GS, some users reported overheating of the device