Nothing very reliable in a price range suitable for home automation yet, and nothing to integrate directly with SmartThings.
The netatmo “welcome” camera is intended to do this, but initial reviews have not been very good.
This is the technology that a lot of people would like to have, so I expect we’ll get it eventually, but at the present time it just doesn’t work very consistently.
If you do want to try the netatmo welcome, it has an IFTTT service/channel which would make integration with smartthings pretty simple that way:
Sorry have to disagree with the review about the Netatmo camera not being very good. I have two and the face recognition after a couple of months training is pretty amazing. No direct integration with smartthings though, only via ifttt.
I would need to do it based on the location of the phones for each member, and having location in the background drains battery so, some doesnt like this
The minimum range on the location based on phones in ST is a couple of blocks, not exactly when someone enters the house.