The idea itself is quite good. Unfortunately, the product has yet some shortcomings. For a rear side is extremely hot. Secondly, the phone will not load properly. If one his cell phone right down to it lights up it green on the side. If you do not from time to time take a closer but it can happen that is not loaded it anyway because the PAD the phone does not recognize whatever reason. There is no trickle charge instead so his cell phone you get breakfast with 90% battery even though it was all night on it. The back cover make the S5 a lot thicker and heavier.