5.0 Bluetooth Smart Watch Activity Fitness Tracker Heart Rate Monitor Waterproof

5 Selling Points: [Retina HD Screen] 1.7 inch Full-View Retina HD flagship  Screen,326PPI;240*280 Pixel brings stunning visual clarity and exquisite display. Built-in multiple faces, huge customized watch faces to download in APP: Gloryfit [High Quality & Comfortable Material] Zinc alloy case with AF coating, antifouling and corrosion resistance. Sweat free Silica Strap & Skin friendly Nylon Strap in box, perfectly matches your need no matter you are going to sport, workout，daily wear or Sleeping. [Upgrade Algorithm for Darker skin] Normal green light has a shorter wavelength, more readily absorbed by melanin, people with darker skin will be at risk of getting inaccurate readings. Our newest chip with Upgrade Algorithm will give you more accurate readings. (Not recommended for the tattoo area) [Stay Active and Stay Healthy] New heart rate tracking method, always record heart rate data. Blood pressure;Blood Oxygen;Sleep monitor and Multi Sports mode let you enjoy the healthy lif