Most still cameras are 5 megapixels or higher. Therefore, do not be fooled by the claims of HD for a camera when the manufacturer is relying on the resolution for still photos. It is true what they are saying but not the complete story. Having HD resolution for still images does not explain the possibility of also having a lower quality for video-image capture.
Yuneec also has a model with a Micro Four Thirds camera. Its Tornado H920 is a huge drone with six rotors and room to hold three batteries, giving it an unheard of 42-minute flight capability. Its CGO4 camera is essentially a custom version of the Panasonic GH4, a favorite of many a terrestrial videographer. It doesn't record uncompressed video like the Inspire 2, but it's less expensive.
Another one of the great drone on this list with the beginner in mind, the UDI 818A HD Drone is electric powered, radio controlled, and equipped with six gyroscopes for stabilization. Although it can take a decent beating, it is recommended that this drone not be flown above asphalt or concrete, as it is still made of plastic, and can break if improperly used.