Top smartphones have a whole lot more durable design these days. You still wouldn’t want to drop them on their head by accident. The AD (active damping) Case by Philip Frenzel is designed to protect phones from falls. It has sensors that detect the free fall of the phone to activate springs for protection.
The hook-like springs can manually be closed by the user. You can always invest in a rugged case to protect your phone but this looks much cooler.