Those WiFi SD cards probably aren’t any more secure than the cameras.
If the camera supports downloading video over USB, you can get a USB OTG cable to connect it to a phone or tablet. Otherwise a card reader is the way to go.
The camera’s USB interface tends to be rather slow, sometimes not even using the full USB 2.0 speed. USB-C card readers sometimes have USB 3.0 and internal ones are very fast, so you’re only limited by the medium’s read speed. And it allows a card swap if you have 2 so you can keep recording with a brief pause.
Those WiFi SD cards probably aren’t any more secure than the cameras.
If the camera supports downloading video over USB, you can get a USB OTG cable to connect it to a phone or tablet. Otherwise a card reader is the way to go.
The camera’s USB interface tends to be rather slow, sometimes not even using the full USB 2.0 speed. USB-C card readers sometimes have USB 3.0 and internal ones are very fast, so you’re only limited by the medium’s read speed. And it allows a card swap if you have 2 so you can keep recording with a brief pause.