I don't know about overseas where you are, but comparing the specs to an $30 prepaid smartphone we get over here, the HTC Desire 530, which I'm using unactivated as a tablet, the camera is slightly better. The screen on that, however scratches easy. I've also somehow dented the camera lens. I keep the thing in a case, so not comment on durability. I'm sure that sucker isn't waterproof at all, though I have got splashes on it with no issue using to stream music while shaving.
The phones me and my grandfather use on AT&T have always been the ruggedized industrial models. I currently have a Samsung Rugby 4, but just ordered a refurbished NEC Terrain (the Samsung, two years ago, cost $25 on promotion, and the NEC, at $150 is the cheapest rugged model they now have after Samsung discontinued the Rugbys) as its replacement. My grandfather has a Kyocera DuraXE, which is pretty good, but heavy for a flip phone with just a few extra features from standard. That one cost $200 on promotion. The DuraForce, its Android smartphone sibling, is around $400. My old Samsung got completely submerged, thrown, dropped, hit, and never had issues. My grandfather was just as abusive with his Rugby 2, and it got replaced with the Kyocera, and the only problem then was a battery (which was replaced once but those aftermarket batteries aren't all that great).