Nope, you just got to think about what you learned in physics class to determine if it will protect or not. Example, my stepfather dropped his iphone from the second floor of a house om the cement floor and it only dented the side. While sitting on the sofa, it dropped from a 3-foot height on the hardwood floor and cracked the glass. Anything is possible depending on the angle. What you are looking for is a shock absorbing material for the faceplate and a case that has some type of foam on the inside. Rubber is a good shock absorbing material but you need a good thickness. The thick plastic covers would be better than metal. In all seriousness what you should look for is a cover that has rubber edges and on the screen it has some type of face plate to protect the screen from edges. Storing you ps vita in a place that is not close to the edge an using wristbands help a lot as well.