Not sure about bluetooth, but here is a Goggle search for ip camera remote access. https://www.google.com/webhp?source=search_app#q=ip+camera+remote+access&revid=1501227640. I think you need wifi for this though. A lot of northern folks who winter in the south have ip cameras set up in their house. They can be viewed by smart phone, laptop or pc. I think the front door and the water heater is the most viewed areas.
A wifi camera may work too.I found a couple on ebay that claim they work with android. IDK what app I would need to make this work. I need a camera that is battery powered.