Don't go below 1080p . If you want to be able to zoom in and actually see a license plate or a face, look for 2K or 4K .
If you use Alexa, Google Home, or Apple HomeKit, make sure the cameras play nice with your existing smart speakers. what to look for when buying a security camera system
Uses an SD card in the camera or a base station (NVR/DVR) in your house. No monthly fees, but if someone steals the camera/recorder, the footage goes with them. 4. Smart Features Don't go below 1080p