The Depstech DW49 is a low-cost webcam that claims to record 4K 30 fps video. I recently got one “used” from eBay for $30, so I can find out what’s inside by disassembling it and making some measurements.
“4K” cameras at this price point often use a lower-resolution image sensor and then scale up the image to 4K, resulting in a video with the right number of pixels, but a blurry picture. The DW49 also upscales 4K video (8.3 MP) from a lower-resolution sensor region (5.2 MP), but the difference from reality is less than some other “4K” cameras I’ve seen, and is a step up from Full HD (2.1 MP). Overall, not quite as advertised, but not bad for the price.
. . . → Read More: Depstech DW49 Webcam — Teardown and Measurements