My Eufy claims to do all processing locally. I admit I never verified this (eg turn off the wifi while it's running - I should actually). But they were the only Chinese manufacturer that at least bothered to write anything about data locality and privacy in their marketing materials, and that got them my money.

Obviously at any point the brand can send a firmware update down the wire that does send a realtime video feed from my home right to Chairman Xi's bedroom. I'm aware of that, but the reality also is that the European/US brands currently don't get anywhere near the Chinese price/quality ratio, and I didn't want to muck about with Valetudo, I'm not courageous enough for that.

I'm not super happy about this situation but I am super happy about the robot. It's really very good.