To gauge flight performance, we put the drone through a number of tests to see how the manufacturer’s claims hold up. First we take it to a local football field and see how fast it can clear 100 yards, then do some calculations to get an objective reading on speed in miles per hour. After that, we do a similar test to assess ascent and descent speeds, and all the while, we’re also taking notes on how responsive the controls are, how stable the craft is, how far it can go before it’s out of range, and what the overall piloting experience is like compared to other drones.
For both DJI drones, it's not necessary to go into depth about the basic functions, like take off, landing and navigating. You pay a premium, but these are definitely the top drones in the sky both because of their ease of use and extra features. On one battery, the Mavic flew for 21 minutes, in many different modes, speeds, and altitudes. The Tap to Fly feature on the Mavic was the biggest disappointment. The remote screen is too vague to simply place your finger where you want to go.
Generally speaking, drones that cost less than $100 bucks aren’t worth your time. They’re flimsy, they lack advanced features, and they’re almost always squirrely as hell in the air. But Tello is different. Despite the fact that it retails for only $99, it boasts a boatload of high-end features and functionality. Under the hood you’ll find a 14-core Intel vision processing chip, flight stabilization tech from DJI, a 5 megapixel camera capable of shooting 720p HD video, and a battery that gets you 13 minutes of flight time.
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