it can also give a coarse approximation of its location (based on GSM towers, not GPS, and accurate to within about 1.57km).
That’s an oddly specific ‘approximate’ distance - works out to about 0.976 SAE miles. If they’d said “accurate to within about 1.61km” I’d know what their “approximation” with too many significant figures came from. But 1.57 km is a bit baffling.
The best I can come up with is it’s 1/4 of one of the common definitions of the medieval Dutch Mile - 20,000 Rhineland feet, 6,280 m. Which seems a bit… out of place when discussing cellular phone network triangulation…
