The Case Perfectly fits the Lumia 830. What you should still highlight, is that they actually close the device completely. Also all corners. The mobile phone is with the shell wonderful in the hand and the plastic is very resistant. This means that it can be bent, but always comes back to its original shape. It is not too soft, so it breaks down very hard. Only the keys are no longer quite so easy to "feel" and press. And it smells when one removes it after a certain time, the inside by strong plastic. The back of the 830 way, even for a short time. Overall I am very satisfied with the shell!