There are plenty of fancy smartphone compatible telescopes available on the market these days. Not all of them are portable though. The Dwarf Telescope is a compact telescope that weighs less than a bottle of water. It can connect to your smartphone via USB and WiFi. You can use the companion app to record videos and photos.
This telescope has a focal length of about 100mm. It has a precise micrometer motor for accurate focus. With the electrical pan/tilt accessory, you will have an easier time controlling the Dwarf.[where to find it]