You’re a runner, so train like one. The smaller-sized Forerunner® 45S is a fuss-free running watch that monitors heart rate at the wrist and uses GPS to track your pace, distance and more. It works with free Garmin Coach adaptive training plans that bring personal coaching to your wrist. Stay connected when you want to with notifications for texts and calls, and feel secure with safety and tracking features that let you send your real-time location to emergency contacts -1.04"/26.3 mm display with a 1.55"/39.5 case -Easy-to-use smaller-sized running watch monitors heart rate at the wrist and features GPS to track your pace, distance, intervals and more -Works with free Garmin Coach adaptive training plans that bring expert, personalized coaching right to your wrist -Connected features include smart notifications for incoming texts and calls, automatic uploads to our Garmin Connect™ online community, live tracking and controls for the music playing on your phone -Safety and tracking features include incident detection (during select activities) and assistance, which both send your real-time location to emergency contacts -Sports apps for running, cycling, indoor track, treadmill, elliptical, cardio, yoga and more -Features a bright, always-on color screen and a reliable 5-button interface that lets you mark laps with just a quick press -Tracks activity, including steps, calories, all-day stress, sleep and more -Battery life: up to 7 days in smartwatch mode or 13 hours in GPS mode