I'm going to have an empty property for a few months and thinking about a 4G security camera. I've got power, not so worried about top image quality as its more a monitoring device. There will be a few people entering the property occasionally, just need to keep an eye on things without having to visit so regularly.

Do any monitor movement and send an alert / footage to an iPhone. If I do this on 4G how much data do the cameras get through a week? I don't really want to sign up for subscriptions and 1 camera on the main room / entrance should work - any ideas or experience of a decent value cam / system to do this? Thanks