So I am back posting about issues with using my mobile phone as a presence device. My wife has a Nexus 4 and it has worked from day one with almost zero issues. I had a Galaxy S3 that would NOT work reliably. Randomly the S3 would go away and within minutes show back up. This was slightly dangerous because if I leave my phone in my house when it does this, I can get locked out of my house.
With the Nexus 5 getting released, I got excited. I got it, and installed smartthings and immediately registered it as a presence device. Ultimately does very similar behavior to the S3. The device would “leave” and if I turned the screen on then open smartthings, it would come back.
I fully believe there is some defect in the smartthings use of the location API. The odds of two different phones exhibiting the same behavior is very unlikely. I am hoping my wife’s Nexus 4 gets upgraded to Kit Kat soon so I can see if the problem starts showing up for her.