Information provided by Ezvid. Inc, a new media software company based in the United States. The list is based on drone sales at Amazon.com.

UDI U818A

Price (from): 258 yuan ($41)

This drone comes with a built-in camera that takes photographs and videos. The remote control shows how long the battery will last for, which is usually between just six and eight minutes. The main problem is that the UDI U818A model is very light and only operates well in calm outdoor conditions.