I got scammed a few too many times on these cheap high-spec cameras on DealExtreme/AliExpress etc. 4K? No problem, just take your generic 640x480 sensor and upscale the heck out of it, usually with dodgy, buggy upscaling algorithm at that. And there has to be a special art to making audio microphones as dysfunctional as I encountered. These scamcams are everywhere, even at Costco and Home Depot once in a while, in the form of action cameras that, as usual, claim 4K though recently the real resolution may be as high as 720p, though now with horrible rolling shutter artifacts.
Not that any of this matters anymore when everyone carries a pretty decent camera in their pocket as part of their smartphone.
Not that any of this matters anymore when everyone carries a pretty decent camera in their pocket as part of their smartphone.