product1 publisher
An hour of walk-run intervals put the Series 12 within 1.9 bpm of a Polar chest strap
Apple says the Series 12 and Ultra 4 are the most accurate heart-tracking wearables on the market. One reviewer's hour of walk-run intervals, judged against the same chest strap Apple's own accuracy study used, mostly backs it.
Publishers:zdnet.com
Reality
- Evidence46
- Adoption26
- Hype gap+20
- Incentives58
- Confidence48