With its ubiquitous Phantom drones, Chinese manufacturer SZ DJI Technology Co. brought aerial photography to millions. Now, with dozens of competitors biting at its heels, the world's biggest producer of consumer drones needs to prove that its products are more than just glorified selfie sticks.

"Right now, DJI is the king of the drones-are-cool market, they are not king of the drones-are-a-tool market," said Colin Snow, founder of Skylogic Research, which advises corporations using drones. "They've entered where they don't have a lot of experience."

The nine-year-old company is developing unmanned aerial vehicles (UAVs) for agriculture and surveying as dozens of competitors inside China and around the world begin to flood the market with cheap drones, from $10 minitoys to sub-$100 camera carriers.