Despite its smaller size, it packs more speed thanks to the new A7 64-bit processor from the iPhone 5s. Apple says it's eight times faster than the original iPad.
The iPad Air doesn't change much in the camera department. It sticks with a 5-megapixel rear camera, but adds better backside illumination an a few other tweaks. The front FaceTime HD camera stays the same at 1.2MP, though. And it lacks the iPhone 5s' fingerprint scanner.
The battery life hasn't changed - it's still billed at 10 hours - but Wi-Fi performance for the iPad Air is two times faster than previous models.
The iPad Air comes in your choice of Silver or Space Gray finish. It starts at $499 for the 16 gigabyte model, and now goes up to 128GB. It will ship November 1.