"A system with 4K promises, a 1080p price tag, and almost certainly 1080p performance."
Dual 4K recording means the video files will be labeled '3840x2160', but the actual visual detail you can resolve will be closer to that of a decent 1080p or 2K camera.
This is for someone on an absolute budget who needs a dual-camera system to prove fault in an accident and is willing to gamble on reliability. The low entry price and included 128GB card are the main draws for a basic, potentially disposable setup.
Anyone who genuinely needs to capture license plates clearly, especially at night or at a distance, should look elsewhere. Users who require a reliable 'set and forget' device should invest in a branded unit with a proven reputation and known components.