A point or 2 to clarify.........
1. Any drone is fully capable to fly with the remote controller that comes with the drone. Don't need a phone to do that.
*** there is exception*** Tello is meant to be flown by a phone. Remote controller is optional and does not come with the drone.
2. The only reason using a phone is to be able to connect to the drone's camera so that one can see what the drone's camera sees.
3. When they say it is a 5G drone, they actually meant to say it is a drone with a camera that is 5G WIFI transmission.
4. A 5G Wifi drone needs a phone that supports 5G wifi transmission in order to receive the images transmitted from the drone's camera.
5. A phone that is equipped with wifi 802.11ac will be able to receive transmissions from the 5g wifi drone. Without the wifi 802.11ac , a phone is useless for a 5G wifi drone.