Amazfit Bip S Smartwatch with 4 Bracelets

Fully functional in perfect condition, with a free app to install on a smartphone. GPS works flawlessly. Battery lasts approximately one week, depending on exercise time. The heart-rate sensor is internal (not the adhesive-type sensor used in subsequent versions, which caused numerous issues and returns). Also included are 3 additional bracelets (beyond the one already attached) and the charger. I am selling this because I was gifted the Bip 6.