  About this item          This fits your&nbsp;.       Make sure this fits by entering your model number.    P.when("ReplacementPartsBulletLoader").execute(function(module){ module.initializeDPX(); })      The lightest GPS watch on the market at its launch – from 29g with the new COROS Nylon band with battery life of 20 days of regular use, 30 hours in full GPS mode     Built-in running power metrics from the wrist plus native and complete integration with Stryd power meters     Featuring running, cycling, swimming, cardio, strength, and water sports modes with ongoing support and updates.     Includes optical heart rate monitor, barometric altimeter, accelerometer, compass, gyroscope and thermometer with 24/7 heart rate monitoring, sleep, step, and calorie tracking          