COROS Pace GPS watch with built-in heart rate measurement, altitude barometer and functions for running, cycling, swimming and triathlon. Built-in heart rate monitor Heart rate measurement on the wrist with performance measurement for swimming, cycling and running. Sport modes, data and statistics Comes with several measurements for running and cycling including: pace, distance, cadence, step length and more. Improve your swimming by checking the number of swim lengths, armrests, tempo, SWOLF and more. You can also pair with compatible ANT + devices. First-class battery life A specially developed CPU system streamlines the clock and results in a battery life of up to 30 days in standard mode and up to 25 hours in GPS mode. Precise altitude measurement A built-in altitude barometer ensures that you always get precise altitude measurements. Quick Bluetooth 4.2 BLE Fast pairing and synchronization of data Comfortable and reliable bracelet A stylish silicone bracelet provides precise measurements and sits comfortably while it resists all tough workouts. Reliable satellite connections GPS, GLONASS and BDS satellites work together to provide precise location of where you are. Water resistance up to 50 meters With a water resistance of up to 5 ATM you can work out in the pool and outdoors without having to worry. Notes You can get and check notes from your mobile phone to the clock without having to interrupt your activity.