Im trying to remember if the Doogees were one of the ones I was looking at, but eliminated because there were multiple reports of them being cheaply made and breaking. Not breaking in a 'ran it over with a truck' sort of way, if you got a good one, they were nice and rugged. But broke in a 'this wasnt properly made' way. And getting warranty was a pain.
I had the sonim xp7. It was a sturdy phone. Dropped from heights many times and get wet plenty also. I only had the screen crack once and it was replaced under warranty no issue. The software for it was the only down side. It was slow and wasn't good for running games.