Whether you're training for a race or just exercising to get into good shape, you'll want to track your fitness to make sure you're not undertraining or overtraining. Training and exercise aren't just about working out hard, you want to make sure you're working out efficiently. The Garmin Forerunner 45S Watch is a small-sized easy-to-use running watch that monitors heart rate at the wrist and features GPS to track your pace, distance, intervals, and more. It works with the free Garmin Coach adaptive training plans that bring expert, personalized coaching right to your wrist. It features smart notifications for incoming texts and calls, automatic uploads to the Garmin Connect online community, live tracking, and controls for the music playing on your phone. The Forerunner 45S is capable of incident detection, which sends your real-time location to emergency contacts and has sports apps for running, cycling, indoor track, treadmill, elliptical, cardio, yoga, and more. With a battery life of up to 7 days in smartwatch mode and 13 hours in GPS mode, this will be your new favorite training partner.
Monitors heart rate at the wrist and can track pace, distance, and intervals
Garmin Coach adaptive training plans bring expert, personalized coaching right to your wrist
Smart notifications let you know if you are receiving a text or call
Sports apps for running, cycling, indoor track, treadmill, elliptical, and more
Included In The Box
Physical & Performance
39.5 x 39.5 x 11.4mm
Display Resolution (WxH)
208 x 208 Pixels
Small: 32g Large: 36g
Smartwatch mode: Up to 7 days GPS mode: Up to 13 hours
Compatible with Varia
Edge Remote Compatibility
Integrated with Shimano Di2 Shifting
Maps & Memory
Features & Benefits
Heart Rate Monitor
Auto Pause (pauses and resumes timer based on speed)
Auto Lap (automatically starts a new lap)
Heart Rate-Based Calorie Computation
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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