Combining bio-optical heart rate technology, training load analysis and a long battery life, the Polar Vantage M GPS watch is an all-around multisport tool for anyone who loves setting new records. With up to 30 hrs. of training time with GPS active, the Polar Vantage M can stand up to your toughest training days and grueling races Combining the latest in bioimpedance electrodes and optical sensors, Polar redefines the gold standard in optical heart rate accuracy Separating cardio load, muscle load and perceived load, the Polar Training Load Pro™ provides an unparalleled look into how your training affects your body Whether in the water, on the bike or on the run, it captures the metrics that matter most Utilize the Polar Running Program to develop a personal and adaptive training plan for your next event 24/7 monitoring tracks your daily activity, including steps, calories and sleep Compatible with popular 3rd party services like Strava, MapMyRun, Training Peaks and Nike + Running Connect via Bluetooth Smart to the free Polar Flow mobile app and online web service