Hello BK,
a 10 to 15 year old Arlo Smart Home Hub (probably an earlier base station) is not directly compatible with the new Arlo Pro 5 cameras. These new cameras connect directly to the app via Wi-Fi and do not require an old base station, but optionally newer models such as VMB5000 or VMB4540. Older hubs do not fully support the extended functionality of the Pro 5.
Can these cameras be used without a plan and what functions are not available without a plan?
If it's only about data storage, is it possible to buy an external memory?