In many ways, the iPad mini remains the small tablet to beat. The performance enhancements in this version keep it ahead of its competitors, and iOS 9 is now well ahead of Android as a tablet operating system for most people. The quality of third-party applications on iOS, particularly those designed specifically for iPads make it a superior platform overall.
However, the size of the iPad mini now feels like too much of a compromise. If you want something to carry around with you at all times, the Apple iPhone 6s Plus is a better option. And, if you're looking for something that can replace a laptop in many circumstances, the iPad Air – or even the iPad Pro – is a much better option.