Have you seen that meme template, where the midwit wants to use a thousand complicated things to optimize their experience, but the grug and the genius both keep it simple?

I think this is a perfect example... somewhere out there a genius and a grug are happily exercising together for the simple joy of doing so and feeling good in their bodies, and nearby is a midwit with the GDP of a small village worth of wearable electronics wondering where the joy has gone as he laments the 0.1% of VO2MAX he's dropped since his last gadget-run.

In this case it might not be as complicated as it seems, they might be using a Polar device for workout tracking, Suunto for marathon training/hiking, a Garmin as daily watch (payments, music etc). Add to that a Withings scale and an iPhone, and you're dealing with a melting pot of apps.

I haven’t trained for an Ironman but have for a marathon. I do think some metric oriented work is helpful! But I laughed at your post. Happy to see both sides.