I'll wager you own a smartphone Glenn- why? was the older one no good or is your new one not faster, with more options etc etc?
You don't need greater accuracy and faster calculations?...- ok- fair enough, understood if perplexed!
It is not something
you use but options your satnav can use (which can be enabled/disabled in your Garmin's settings) should yours have
a) the ability to receive other satellite systems and
b) the option to enable them (GPS, Galileo, Glonass) and
c) if you can enable/disable WAAS too.
Resulting in faster calculations and greater accuracy- what's not to like? I do understand that not all Garmin units have these facilities.
Right, I'll get my coat