B57 Smartwatch review after 1 week of use

We tested the B57 for a week with normal use and few runs during the period. We also compared it Buy here: https://x3veu.voluumtrk3.com/9463d885-d64e-4714-b5c3-458cabf88669 More Smartwatch Reviews and Buying guides available at https://www.smartwatchauthority.com Disclosure: SmartwatchAuthority purchased this product. We received no monetary compensation from the manufacturer to provide this video. However, our content contain affiliate links. You don't pay a penny more although we receive a small amount of compensation when you purchase from our links, which we will use it to review more Smartwatches. Read full disclosure: https://www.smartwatchauthority.com/pages/affiliate-disclosure