Bought especially for photographs of divers in shallow water, I immediately wanted to test the waterproof case ..
So I wins (empty) at least 53 meters .... The empty box contained tissue paper balls, because I have not risked to put the device itself ... I ' I tested a dozen times the button contacts, -45 meters.
In return, the tissue paper pellets were dry and no trace humidity ... In practice, however, I have a doubt about the strength of the white seal (The manufacturer provides a replacement under as a whole background)
In a depth of 0-15 meters, one should be able to take good pictures ... Beyond, brightness will imperfect ...
This explains the low price of the equipment appears to be primarily the lack of wi-fi system and remote .ca top would be, really)
But for the price, and the apparent quality, you will delight in the underwater pictures in the pool, or to descend the Ardèche, even if you dessalez at every turn!
One tip I would give willingly: Protect the waterproof case and even the sun light as much as possible during periods of inactivity ... and remember to rinse after dives (white seal is the weak point, I think ...)