You do the running. Forerunner® 245 Music does the thinking. This GPS running smartwatch evaluates your current training status to let you know if you’re undertraining or overdoing it. It also stores up to 500 songs for phone-free listening.Garmin CoachThese adaptive training plans feature guidance from expert coaches and free training plans that adapt to you and your goals. Workouts sync right to your watch.Built-In Sports AppsSwitch up your workout routine with activity profiles for cycling, pool swimming, indoor rowing, elliptical, stair-stepper and more.Wrist-Based Heart RateGet heart rate data along with alerts if your heart rate stays too high or too low while you’re at rest. Gauge how hard your heart is working during activities, even underwater.Built-In GPSTrack where you run, and get accurate stats, including distance, pace and intervals.Running DynamicsWhen used with a compatible accessory, Forerunner 245 Music measures crucial running metrics such as cadence, stride length, ground contact time and balance and more.VO2 MaxTrain smarter with VO2 max, an indicator of how you can expect to perform. This metric even accounts for changes in performance that could be caused by heat or altitude.Pulse Ox SensorThis wrist-based sensor estimates your body’s blood oxygen saturation, which can help gauge how your body is absorbing oxygen — especially while you sleep.Training StatusThis metric evaluates your recent exercise history and performance indicators to let you know if you’re training productively, peaking or overreaching.Training EffectSee how your workouts influence the development of endurance, speed and power with aerobic and anaerobic training effect feedback.Training LoadThis stat measures your exercise volume from the last 7 days and compares it to the optimal range for your fitness and recent training history.Battery LifeRun your heart out with a watch that’s got the power to keep up. You’ll get up to 7 days of battery life in smartwatch mode and up to 6 hours in GPS mode with music.Body Battery™ Energy MonitorTrack your body’s energy levels so you can find the best times for activity and rest.Menstrual TrackingTrack period cycle details, log physical and emotional symptoms, and note regular, irregular or menopause transition cycles to better understand your body.Music On Your WristSync your playlists from select music streaming services — such as Deezer, Amazon Music and Spotify® — right to your watch. Forerunner 245 Music can store up to 500 songsSmart NotificationsReceive emails, texts, and alerts right on your watch when paired with a compatible smartphone.Safety & Tracking FeatureIf you feel unsafe or if your watch senses that an incident occurred, assistance and incident detection features2 send your location to emergency contacts.Connect IQ™ StoreDownload custom watch faces, add data fields, and get apps and widgets from the Connect IQ Store.Syncs With Garmin Connect™Upload your activities to the Garmin Connect app to interact with a thriving online community where people on the go can connect and compete — and even share their triumphs via social media.