@gcluley
I'm fairly happy with my Tapo doorbell.
Records locally and has a far better battery life than the Ring doorbell it replaced.
There appears to be a battery pack power supply & solar panel available which removes the need for battery charging - I've nit tried either.

There is a cloud option but they don't force it down your throat, and the doorbell isn't crippled without it.

It's rather an ugly thing (compared to Ring) and the lag between bell push and notification is significant (but I confess that may be my phone). You may pay more upfront compared to the Ring device.

I'm generally impressed with the Tapo / Kasa / TP-link products I've got.

Euefy (?sp) get honorable mentions, but I have no experience.