Yeah, I can tell that since I do tests for Amazon (Amazon Vine).

There is more and more camera being put to test, ranging for cheap bellow €100 ones to miniaturized keyring sized ones (with tiny screens).
I tested some of them (and have another one coming next week), the quality of the pictures are good, but the build quality of sub-100 ones are kinda bad (cheap plastics, no optic zoom, no hardpoints for better lenses, sd cards smaller than their advertised size)