Forerunner 45 is the GPS running watch with all the running-related features you need in a sleek, lightweight smartwatch you’ll want to wear all day and night. Monitors heart rate at the wrist, because a finger on the pulse is so old school. For concrete proof that you crushed it, GPS tracks pace, distance, intervals and more. Say goodbye to missed texts with smart notifications delivered right to your wrist. Log more miles between charges with up to 7 days of battery life.