The 4moms MamaRoo 4 ($220) is nothing new, but this version has a few additional features, including 25 different motion patterns and speed combinations (which you can control via Bluetooth on your phone so you don't even have to get up!). The seat now fully reclines, you can hook up music or sounds through a phone or iPod with an AUX cable, and the plush fabric is easy to remove and machine washable.