Get the "dolphin" and then you will only bump into some frogs spawn in the pond!! http://www.powervision.me/uk/html/pv/powerDolphin.html
Didn't think it even had any collision avoidance ?
It was crashed into some large industrial pallet racking and not a wall, I'm presuming the collision detection wont work through open racking with items on the shelves.
Seen some videos of this thing and it’s a bit big to carry around and a bit of a gimmick if you ask me. It was featured on last weeks gadget show where they said it wasn’t very stable and the female presenter crashed it,but i dont think that was anything to do with it being unstable and more to do with the fact she didn’t know how to fly one very well. I think i will stick to my Mavic Air that has far more features such as front/rear/bottom obstacle avoidance and all in a much smaller form factor. That said this seems a good price if it is what you really want.
Knew I had seen this design before... ;)