Again, LRC haters CONSTANTLY change the rules. First they ask specifically for "GPS data" (like from a iPhone or whatever). Then when it's pointed out how easy that is to fake, it's suddenly "Oh, of course you'll also have heart rate and cadence if you have GPS", when even then it's an only *option* with the "running watch" anyway.
Oprah W wrote:You have no heart wrote:and 99% of the time that gps data comes from a running watch that can also record heart rate and cadence.
GPS is Global Positioning System. It doesn't measure down to the millimeter. It has nothing to do with heart rate or cadence.
either you're being deliberately obtuse or you genuinely have no clue
There's a bazillion ways to get GPS data (as asked for), and "99%" of them (to quote LRC) certainly don't involve an expensive running watch.