Recommendations please- dahua vs hikvision cctv and intercom

Hello All.

I did a bit research but I am still struggling.

I have ethernet cables on the wall and I want to put 4 indoor stations on the wall. In Australia, there is no Poe tablet on the market unless I buy something from AliExpress.

For dahua and hikvision, which indoor station can have HA android installed? Also a 8ch NVR which can work with the wall mount stations.

Thanks!