In reply to The Lemming:
I have now got the Mavic 2 Zoom version. Changed my mind for what we need it for since the Zoom is really useful to do merges when taking big crags plus the wider-angle lens it offers is good.
It is very slightly bigger and heavier than the Mavic Pro and of course has bigger batteries. Claims all round sensors but appears in reality to only have front and back obstacle avoidance and sensors working so far. This makes it quite choosy about where you can fly it since it starts getting fussy around 5m from obstacles which is safer than you may want.
It requires fast SD cards (as I found out yesterday when I realised half the photos I had taken hadn't been written to the SD card). The camera is significantly more substantial than the thin wobbly thing on the Pro so it may take a crash better if you are unlucky.
Apart from that it handles just like the Mavic Pro although landing is trickier since it doesn't take a foot booster attachment (or no-one has built one yet and I can't see where it would attach anyway). This makes landing on rough ground trickier.
Alan