Built for swimmers who want the highest level of performance and durability in the water. Smart Swim 2 PRO combines real time swim metrics with integrated heart rate tracking, giving you deeper insight into your training every session. Featuring Corning® Gorilla® Glass 3 inside and out, it delivers exceptional scratch and damage resistance while maintaining crystal clear visibility swim after swim. Clean and handle the lenses without worrying about anti fog performance, then simply apply the included anti fog spray before each session for long lasting clarity.