With vision positioning, obstacle avoidance and smart shooting modes, it's a low-cost competitor for the DJI Mavic.
For something that is around US$65 cheaper than the Mavic Air, the GDU 02 packs plenty of goodies. Comparable in size to a Mavic Pro, it features forward-facing obstacle avoidance to help you not crash it, and can transmit high-def video back to a smartphone about one-kilometer (0.6 mi) away. Like the Mavic drones, it fits easily in a backpack with your camera gear, and unfolds and flies within minutes. The only fiddly bit is sticking your smartphone, in my case a Pixel XL, in the stretchy controller clamp – and that's a 10 second job.