Waterbird Bendable Multislider: comes with app control and lets you achieve full circle effects. It has a payload capacity of up to 8kg (horizontally).
ASXMOV-G6s: a multi-axis motion control system for stop-motion animation, timelapse photography, and everything in between. Comes with a 3-way head and Pterosaur wireless controller.
SurfaceOne: an app controlled robot that lets you capture straight, curved, and panning shots. You can target any object at any distance.
ROV Camera Slider: works for devices up to 5lbs. It is available in 8 and 16 inch versions. Lets you create cinematic video with your smartphone and GoPro.
PROAIM Curve-N-Line Slider: a motorized slider that can handle up to 5kg. Comes with foldable removable legs. Handles straight and parabolic video shots.
Have you found more advanced sliders for smartphones and DSLR cameras? Please share them here.