The Embody has adjustable seat pan depth, and the Celle has it as an option. The Mirra's "seat depth adjustment" looks like it isn't quite the same (looks like

The Embody has adjustable seat pan depth, and the Celle has it as an option. The Mirra's "seat depth adjustment" looks like it isn't quite the same (looks like part of the front of the seat bends to provide that adjustment?).