If a drone in this category has first-person-view (FPV) capability, you can see what the drone sees. All except one of these drones require a smartphone (not included) to be able to view and record the video. The smartphone is held in a bracket and then it is connected to the controller. Some of these drones can be flown by only using the smartphone with a downloadable app installed that controls the drone. 
Naturally, there are a couple of downsides to a drone being this small – it’s not particularly happy when flying in breezy conditions and the battery life is barely longer than ten minutes. Still, while the body is made of plastic, it’s tough enough so survive some crashes and, in the right conditions, the Tello is an impressively stable and responsive flyer.
A. The law is a bit murky here in terms of licenses and registering of drones, and as such your best bet is to check local regulations and brush up on the latest requirements from the FAA. In general, you won’t need a license if you’re flying a drone recreationally and the drone weighs under 55 pounds. Anything heavier than that and you might need to register it. If you’re trying to earn money with your drone, you’ll need to be licensed. The FAA is more than willing to fine or even jail those who violate drone rules, so this is definitely not an area you should ignore.
If you’re looking for quality, the Inspire 2 is the best camera drone you can buy that comes ready to fly out of the box. The next best option is the Phantom 4 Pro and after that, the Mavic Pro. If you’re concerned about video quality, just pick one of the three drones mentioned above (which ever one matches your price point) and you’ll be more than satisfied. There are really no other drones that come close to what these three can do. Some people who shoot videos for a living will buy the Mavic Pro, Phantom 4 Pro, and the Inspire 2, because each of them can be useful for different situations.
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.
If you're flying within the United States, you need to take heed of FAA guidelines—or be prepared to face potential fines or jail time. There are no-fly zones set by the FAA, so don't take off if you're near an airport without notifying the control tower first. And, even if you're out in the middle of nowhere, don't take your drone above 400 feet. Most are set to obey these regulations out of the box, but controlling a quadcopter is just like driving a car—even if you missed seeing that speed limit sign, you're still liable to pay the ticket.
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.