With Perch, it seems that you can use an old Android smartphone with a camera as a webcam, which seems like a great idea to reuse old devices that you no longer want.
However, in normal usage, phones tend to use a lot of energy in my experience (some phones barely last a day on battery in normal usage!), and the camera seems to use even more than usual, so I'm concerned that there may be a lot of power consumption.
If I reused a Samsung Galaxy S3 with Perch, is it likely to cost more than just buying a webcam and connecting it to my network, or is the difference negligible?
In regards to what I'm comparing, I'm interested in whether (cost of webcam + electricity) would be cheaper than (cost of electricity for phone). If the webcam only pays for itself after 5 or 10 years, I'm not too concerned and won't bother buying it, but if I'm going to see savings after 6 months it might be more valuable.
As far as I can tell, Perch just runs the camera 24/7 and communicates via Wi-Fi, but I've turned Bluetooth and mobile data off, along with GPS, since I don't need them.
As requested by Mawg, an example of the sort of thing the D-Link DCS-932L, which says the maximum power consumption is 2W on the datasheet. There isn't any information on the typical power consumption, however, so an answer with some explanation on what might typically be expected could be helpful.
I'm not particularly interested in any additional features such as low-light vision, although it would be a bonus. Motion detection would be useful though, since Perch does seem to support this by default and it would be advantageous. Notifications of motion would be good as well.
The camera will be situated inside, so I wouldn't expect any temperature extremes or dampness (otherwise I have a much bigger problem!).
When charging, I would be using a standard 5W USB charger for the phone, which would be connected all the time.