2x 4K Dashcam in one vehicle

Since there is no dual front/rear 4K dashcam is it possible to simply install two front 4K cameras, one in front and one in rear? The in app FAQ says “At present the device can only connect with one phone at the same.” Does that mean that you could only download videos from one at a time if two were setup? The camera wouldn’t stop recording video as intended if it wasn’t synced to a phone, right? Front and rear should just work independently unless I’m mistaken.