Can I use Wyze Cam without WiFi or internet?

It’s a complicated answer, but this camera is probably not for you. Basically you need Internet access to start the camera (hotspot?), even if all you plan to do is use the SD card. If the camera loses power you will need the hotspot to get it working again. Here is a write-up of how it currently works. I believe Wyze is discussing whether it will work this way in the future: