It seems pretty pricy for a limited use device. I have an old iPod Video 30g and use it as a music player for my motorcycle and cars with an amp. It works great for that.The M8 motion coprocessor for one - the iPad Mini 4 would be too big to lug around. I've yet to find a decent pedometer app on android (or at least one as accurate as that of the iPt).
Besides, I like having multiple devices; likewise I have many watches - they all tell the time but each is different.
But the iPT just seemed like so many other devices can do the same thing that it's become the Kodak point-n-shoot camera.
Point-n-shoot cameras were all the rage at one time, now, you hardly see them anymore. Innovation brings functions together, I understand the iPhone is the most popular camera in the world.
Much like the flashlight apps at the start of the smart phone craze, now they are relics of the past and their functionality is built in.