Which leads me to the devaluation: I doubt the (given the relatively high price in my opinion rather low) stability, and is a senior mobile phone that may fall ever, important. The device is advertised as fail-safe. However, it does not make very stable impression. It's very easy. It affects a whole "shaky". I am not one of those who get upset when "X Smartphone creaks when one puts it in the top left firmly". If a device with a removable back panel has a little game, my opinion is normal. But the back cover, the Panasonic has so much air that it already creaks when it touches normal. I did this with the stability rather not test and have it returned.