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.
Small drones might be super for indoor and low-level outdoor flying, but if you’re planning to pilot your drone in more difficult weather conditions it’s worth considering how well your flying machine will fare. Petite drones are generally more affected by crosswinds than larger quadcopters, though advanced stabilisation tech can sometimes reduce the effects of a strong breeze.
Almost all of the models featured here have some safety features. Even the DJI Spark, which isn't built for long-distance flight, includes a GPS and automatic return-to-home functionality. If your control signal is interrupted, or if the battery gets down too low (most drones can only fly for about 25 minutes on a single battery charge), you drone will start to head back to its takeoff point and land.
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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