Does anyone know of a dumb/feature phone (ie; something that isn't a smartphone, doesn't run android, and doesn't have a touchscreen) that's 3G or 4G and has the ability to automatically lock itself with a password or pin after being idle for a few minutes? I'm not talking about some "press two keys" thing that prevents pocket dialing, but an actual password or four digit pin.

› See More: Are there any 3G/4G non-smartphones that can auto-lock?