Best Wireless Front-and-Rear Dash Cams in Canada

Usually not. Wi-Fi connects the camera to a phone or cloud service, but both cameras need power and the rear unit commonly connects by cable to the front camera.

Local recording normally works without internet. Internet is needed for remote cloud functions, while direct camera-to-phone Wi-Fi may work locally.

Wi-Fi itself is not the main issue; any camera left powered while parked consumes energy. Use the manufacturer's protected parking-power solution and appropriate cutoff settings.

No. Higher resolution can preserve more detail, but sensor quality, exposure, lens, bitrate and lighting also matter. Balanced front-and-rear coverage may be more useful than a headline resolution alone.