This one is from Phonebuff. Normally, when you witness a drop test, it's guy dropping the handset by hand. I have also seen them places in a sled that brings a little more consistency, but again...by hand.
Phonebuff has build a rig that uses an actuator that triggers a mechanical grip holding the unit. It also has a tray at the bottom to place different material simulating different environments while still maintaining consistency between the two victims.
The top down camera view is also quite unique.
Let the pain begin.