if you are just starting out with drones, the ryze tello is a cheap introduction to decent quality kit. your phone is the controller so the range is limited compared to the more expensive drones, but given its low weight you wont need to register it when the new legislation goes through. ive liked mine a lot, and probably use it more than my phantom 2 as its small enough to take places i wouldnt want to lug the big boy. the camera isnt bad at all, but its not 4k and it doesnt have a mechanical gimble (but it does do digital image stabilisation so its still pretty smooth). if it did go into the sea, its only 90 quid lost rather than 500.
I wouldnt recommend anything else cheap or nasty. they cant fight a moderate breeze and give pretty disappointing video quality.