You and I are suffering from the same malady. These new Geek devices are programmed by the super intelligent whiz kids. They take to it like a Duck to water.
What those Geekey idiots don't have is adult supervision. They'd ought to run all their inventions by their grand parents before putting all that gibberish up for sale.
If us old farts forced those young X#@$
to make the language plain to their grand parents, anybody could work the dang things.
I have a Garmin 72, which works good for all that I've been able to figure out. It will measure less than 1 mph, but I don't normally go slow like that so I'm not sure how slow it will go.
The book on how to use the the thing was written by somebody that cant stay on a subject long enough to finish a sentence though. The instructions end in the middle and jump to a different page without taking the reader along for the trip.
I've never seen a "Bubble flow" or any kind of a start-to-finish trail for doing a function in the Garmin book. (although I'm not sorry I bought the G-72, just very angry at Garmin for hiring somebody out of an asylum to write the instructions)
I just wish I could be better at fishing. Or maybe luckier!:D