Buy Pebble Spark Ace 1.85 Large HD Display, Health Suite, 100+ Watch Faces, 7 days battery Smartwatch (Green Strap, Free Size) from Flipkart. The smartwatch monitors your heart rate and blood oxygen levels to keep you on top of your health. The IP67 dust, splash and sweat resistance will keep the watch safe to use in the most intense workouts too! Shop now