Running

Yeah, I know it does much more as you say.

If you run set routes regularly & keep a training diary (takes just as long to punch numbers into a spreadsheet/website or write them down in a book, as it does to download data ;) ), exact distance isn't that important to measure progress as if you're getting faster / feeling easier over appx but constant distance then that's great!

Having a "virtual partner" strikes me as over rated too - just remember your PB, or look it up in training diary, and try to run faster (or whatever goal you set vs the training partner) - learn pacing on your routes by thinking about how you run over that course... In some ways virtual partner can be counter productive, as you could easily end up racing more training sessions, which from experience can lead to long injury layoff.

Additionally - if you rely too much on this stuff in training, and it fails on race day, you're fucked for that race.

That's my tuppence on GPS, and I'm no fan of compression fit technology, forefoot/barefoot running technology, super high mileage training plans, or much else that is often touted as the new thing either. Just call me grumpy.

Agree with the point about racing training session. When I know my PB and current pace all I wanna do is beat it. But I think for running new routes or areas its good to know how far you've been etc. I know running routes you've have experience on has advantages but for interests sake, its all about somewhere new.