Forerunner 45S is the smaller-sized 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.
Run far with a smaller-sized lightweight watch that fits comfortably and won’t hold you back.
The sweat-ready silicone band makes chafing a thing of the past.
Monitors heart rate at the wrist1, because a finger on the pulse is so old school.
For concrete proof that you crushed it, GPS tracks pace, distance, intervals and more.
Get yourself on the road to glory with free Garmin Coachadaptive training plans.
Say goodbye to missed texts with smart notifications2delivered right to your wrist.
We’ve got your back with built-in incident detection and assistance features3.
Log more miles between charges with up to 7 days of battery life.