For example, OPTI has a built-in Optiflow Sensor (a downward facing sensor), which functions by picking out the patterns on the ground to ensure that the drone maintains a straight position.  ATTI, conversely, works a bit differently. With the ATTI, the drone employs other techniques apart from the external sensors to keep the drone in the right orientation and altitude. Thus, the drone can hover in place, or drift slightly around with the wind serving as a push. You will also find a GPS in some drones, and they help the drone to maintain coordinated and precise flights and landings.
The Syma X5C-1 was our top pick for this roundup, for the reasons of stability, wind-resistance and just being a great all around quadcopter is this price range. The popularity of this model means you will be able find lots of spare parts and find more answers to problems when you have questions. That being said, all the models we reviewed here make for great drones and a good bang for the buck. We hope the information we provided helps you find the best drone under $100.
There are various factors you should take note of when shopping for these particular machines. First, you need to check the control operating system to ensure that it’s easy and manageable to use. Basically, there are 3 main control functions you can choose from which include OPTI, ATTI, and GPS, though they all help in flight-stabilization and assistance they tend to do it in slightly different ways.
Registering is easy. If you have a toy drone, you probably don’t need to register it, but for those of you buying camera drones, here’s how it works. You just go to registermyuas.faa.gov, fill out a few important questions like what model drone you have, where you live, and your email address. Then you pay a small license fee, print out your new registration number, and attach it to your drone in a place where it can be seen.

You get up to 9 minutes of flight time, have a 640x480p camera, and video capabilities that lack audio as there is no microphone. You can do flips in the air at the touch of a button on the transmitter, and there is a button that lets you share a video on social media instantly. The LED lights located at the center of each propeller and the headlight are pretty useful for flying at night, too.
One of the cheaper options for an autopilot drone is the Hubsan H501S. It doesn’t have as many camera features as some of the more professional drones, but it is still equipped with some great auto features. It comes with a 1080p HD camera and has automatic return, altitude mode, and follow-me capabilities. It’s small, compact size makes it good for traveling and you get an average of 20 minutes of flying which is great for the price you’re paying. While more professional drone features are missing, you’re still getting a nice drone for less than $300.
The Altair AA108 is durably built and will not break easily. You can count on a solid flight time of around 10 minutes, a bit less when you’re running it FPV. However the 720p camera really works well and connects to your phone through WiFi. It’s easy to fly because it has 3 flight modes, 1 beginner, 2 intermediate and 3 advanced mode. It also has Altitude Hold which allows you to take your thumb off the control and the drone holds it’s own altitude, making it very stable because it’s not bouncing up and down as you try to maintain altitude!
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