I've tried using a phone as a server in a similar fashion in the past, and found it to be too unstable and unreliable. With a Pi (at least, any Pi made since th

I've tried using a phone as a server in a similar fashion in the past, and found it to be too unstable and unreliable. With a Pi (at least, any Pi made since the Model B+ revision) stability and robustness is not an issue, however I've tried repurposing several Android devices from various manufacturers and they always end up rebooting themselves at inopportune times, or locking up, or the server app I'm using constantly crashes. By contrast, I've had the same RPi 3 running nonstop for nearly a year as a camera server. I think it's more to do with the Android OS itself rather than the hardware, but I could be wrong. It's possible the SoC was overheating on those phones from the extended duty cycles; they simply aren't designed for much more than sporadic use.