The Lifeproof nüüd is a stable protective case for the Samsung S4, which keeps its promises! I've tried this case and also risked my smartphone destroying. Falls z. B. from the table were all good abgedämpftund the S4 suffered no harm. The water resistance was first established with the attached test unit and the smartphone. If you follow the manufacturer's instructions, the protective housing is completely sealed! I just have not tried yet as the tightness over a longer period is. With 25 minutes but harmless to survive. I would recommend this protective case immediately and unconditionally, if it were not the extremely high price. Therefore 1 point deduction from de top score!