> There's your problem: why continue to deny simple facts when you're shown them so clearly? Who's in denial? You just completely skipped commenting on clearly

> There's your problem: why continue to deny simple facts when you're shown them so clearly? Who's in denial? You just completely skipped commenting on clearly visible twin external antenna sockets in gnss-compass version of the unit and didn't correct your wild assumption that smartphone sized brick is all that is needed for this gnss-compass to run. And what's that stuff about size of all other sensors? Everybody knows those don't take any space at all and that every smartphone has them. My point was that having these additional sensors in a unit that boasts inertial navigational capabilities might mean that direction is also mostly innertially tracked since the last time the sensor moved or even mostly faked with magnetometer. I can make better guess what (1m) is than AI. It tells us that this an accurancy is achieved when you put the two external antennas 1 meter apart. Read Wikipedia page on GPS system and try to find any single feature unique to this system (or even just not common to all radio signals) that aids with determining orientation of the reciever (while stationary). You'll find none.