The first retail multi-rotor drones were little more than flying toys with limited range and battery power. Their small motors were charged via battery pack, and a basic RF controller moved their rotors to achieve loops, dives, and hovers. But technology has grown in recent years, and today, many people use these types of drones to perform aerobatic stunts and aerial races.
Tello has a range of just over 300 feet, and despite its size, it produces stable and clear videos, courtesy of its dual antenna transmission. You can get a 720p HD quality video with 30 frames per second, and conveniently capture stills of up to five megapixels. Unfortunately, users can only save the recorded videos on the smartphone and not on a memory card. While you can access these clips almost instantly, it takes up all the space on your phone.
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.
The other primary consideration is how the photos and video are stored after you take them. Drones with WiFi capabilities will work with your mobile device, letting you see and store media real-time on your phone. For those that don’t, you’ll store the media on the drone, usually on a microSD card. If this is the case, know how much storage the drone comes with and whether (and by how much) it can be upgraded.
If you are a beginner just learning to fly with these cheaper drones, take your time to learn the controls by flying in a safe area that is a wide open space, with no wind, and no obstacles. At first, fly low to the ground until you can maneuver your drone correctly. Practice flying on a single battery charge and then let the drone cool down for ten minutes before flying more.