Mountain View, CA — January 9, 2018 — Amazfit, one of the largest wearable device companies globally, today announced the availability of its two new premium multisport GPS smartwatches, Amazfit Stratos and Amazfit Stratos + (Sapphire), as well as their partnership with Firstbeat, to enable VO2max fitness level detection and training analysis. The Amazfit Stratos line of multisport […]