[h2odragon]

Automate moving the recordings from your phone? IFTT (If This, Then That) used to be a thing but I never played with it.

"constant recording": are you really sure you need that? Do you plan to go back through it and filter the majority of non interesting time out, somehow? Or do you really want the sound of every keyboard clack and digestive announcement saved for posterity?

My first thought was "what will you use for a mic?" but I'm guessing you're happy with what your phone gives from the rest of the post. If you wanted an actual "sound sensor" record of an area then the choice of mic becomes more important and if you're wearing it i think yer boned and will get more clothing noise than useful signal.