How to check that camera is new and unused?

Purchased two EZVIZ H90C cameras from local seller, manufactured in December 2024 and Feb 2025. The entire installation and setup was done by vendor. I didn’t pay much attention during installation. One camera shows free trial of CloudPlay subscription expiring in 7 days and another isn’t showing any free trial at all. Hence, I doubt that the cameras have been previously used. I couldn’t find anything else that hints the same.

Is there any other way to check that camera is new and unused? What’s the duration of free CloudPlay trial that one gets with new purchase?