Here is an app-controlled motorized camera slider that lets you do more with your smartphone, GoPro, and other compact cameras. It can be put together without any fancy tools and is fully adjustable. You are in control of the action using the companion app. Each track piece is 1 foot long, so you can carry the gear in your bag.
Trek comes with straight and curved pieces, so you can set up complex shots just how you like. You can adjust speed, length, and direction of your shots from your smartphone. Trek is expected to work with iOS and Android devices.[where to get it]