In 2015, a company called TinyMOS launched TINY1, specialized astrophotography camera with a small form factor and small sensor. Almost four years after, we have its offspring — NANO1, highly portable, lightweight astronomy camera which will offer triple the resolution of the original model, featuring a Sony BSI sensor capable of capturing 12MP still images and 4K Ultra HD videos.
If you ask what kind of quality can be achieved with such a small sensor, follow the links…
OK, you may call it a toy, but it is useful and immensely fun toy, Waiting for the price tag, and deliveries are expected to start in April 2019. :)