Found this on AliExpress, but thus far I can't find any reviews:
https://www.aliexpress.com/store/product/KAILUKE-Novatek-96663-Wifi-Car-DVR-Dual-Camera-Car-DVRS-Video-Recorder-Monitor-Dash-Cam-Black/540101_32797753369.html
It's a Novatek 96663 with IMX291/323. Thus far, I've determined that...