Leif, thankyou for you
Leif, thank you for your reply.
Indeed, it would appear that the Anafi is in 4k straight out of the box.
In my haste to get it in the air, I did not notice that I was recording in 4k. I have now set the drone to record in HD (1080 x something) and the footage is fluid and smooth on my PC and plays no problem on my TV.
I might add that the image is sharp and clearer than the Bebop 2, even when filming in non-4k.
Concerning the smartphone/tablet problem, my wife has kindly ordered me a new Samsung J3 2017, running android 7.0. So no more problems of connectivity (hopefully).
Kind regards
CaptainBirdseye