Forerunner® 45S
SKU: 9217546272

Forerunner® 45S

Sale price$161.99 Regular price$179.99
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Description

Forerunner® 45SForerunner 45 Case Size 39mm GPS Running Smartwatch with Garmin Coach Training Plan Support Smaller sized easy to use 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

Forerunner 45

Case Size 39mm

GPS Running Smartwatch with Garmin Coach Training Plan Support 

  • Smaller-sized easy-to-use running watch monitors heart rate at the wrist¹ 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 features² 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 contacts³
  • Sports apps for running, cycling, indoor track, treadmill, elliptical, cardio, yoga and more
  • Battery life: up to 7 days in smartwatch mode; 13 hours in GPS mode

When you lace up your shoes and get ready to run, make sure you have the right tool for the job. Forerunner 45S is the smaller-sized GPS running watch with all the running-related features you need in a sleek, lightweight smartwatch that you’ll want to wear all day and night.

Run Your Heart Out

This easy-to-use running watch is perfect for daily runs, training sessions and even that upcoming 10K you got talked into. Built-in GPS tracks where you run and gives you accurate stats, including distance, pace and intervals. And its intuitive button interface makes it easy for sweaty hands to mark a lap or pause the timer. Forerunner 45S also monitors heart rate at the wrist, day and night¹.

Gear up with Garmin Coach

Whether you’re a seasoned runner or just getting off the couch, everyone can use a little bit of guidance. That’s why Forerunner 45S is compatible with Garmin Coach adaptive training plans. These plans feature guidance from expert coaches and free training plans that adapt to you and your goals. It’s a foolproof way to get to the finish line. As part of your training plan, it can even help you predict your race time. And the workouts sync right to your watch.

Stay Connected on the Run

Safety and tracking features make it easy to share your location with chosen contacts in case you need assistance — manually, or automatically with built-in incident detection³. And a variety of connected features keeps you in touch with the rest of the world during and in between runs. Get smart notifications delivered to your wrist for incoming text messages and phone calls. And when paired with your compatible smartphone, Forerunner 45S will automatically upload your run data to the Garmin Connect online fitness community. It even has handy controls for the music playing on your phone, so you can skip songs without missing a beat.

There’s More to Do

With a dozen activity profiles available, you’ll always have a way to capture your sweat equity, even when you don’t feel like running. Forerunner 45S can record your efforts during a cycling workout, on the treadmill, indoor track and elliptical — and while doing cardio, yoga and more.

On the Way to Wellness

The Forerunner 45S GPS running watch offers extensive activity and wellness tracking features. Wear it 24/7 to monitor daily steps, distance, calories burned and even sleep. This smartwatch also features all-day stress monitoring for wellness tracking during the day. If your stress level starts to climb, use the relaxation breathing timer for a few minutes of guided breathing, which can help calm your mind and body. And to help you optimize your body’s energy, Body Battery™ energy monitoring uses collected data to gauge your energy reserves at any moment, so you can plan your day to optimize times for activity and rest.

Share and Compete

Syncing your activities to Garmin Connect is for more than just storing your data. Garmin Connect is a thriving online community where people on the go can connect and compete by joining challenges, encourage each other’s successes and even share their triumphs via social media. Garmin Connect is free and available on the web or on your smartphone.

Make a Statement

Express your personality by customizing Forerunner 45S. It’s compatible with free watch faces from our Connect IQ™ Store. Choose from thousands of watch faces available to download, or create your custom watch face from your own photos.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 9217546272

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4.1 ★★★★★
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Sholom
Carnegie, US
★★★★★ 5
Great Mat, Slight Grip Issue (lika all mats)
Color: Black
Comfortable and solid for workouts, but it can be a bit slippery on the floor during intense poses. Still a great overall yoga mat.
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Reviewed in the United States on May 26, 2026
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Nicky
Bozeman, US
★★★★★ 3
The tear-iest anti-tear mat
Color: Green
The good: It's super thick and squishy. So it has that nice bouncy feeling when you're using it. The strap is easy to secure on the mat as well once it's rolled up. The color is also super cute. The bad: it's not Anti-Tear. It says in the name that it is, but the second I got it it tore. Only a little bit but still. For how cheap it is, I don't mind, but keep that in mind if you're buying this.
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Reviewed in the United States on May 1, 2026
C
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Christina
Birmingham, US
★★★★★ 5
Love
Color: Deep Wine
This is a great quality, thick and pretty colored yoga mat! It's easy to roll up and put away and of course, just as easy to sanitize than the yoga mats with the little dips and crevices in their designs.
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Reviewed in the United States on April 13, 2026
A
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Amazon Customer
Whiting, US
★★★★★ 5
Thick & sturdy.
Color: Blue
Great mat! Nice thick, sturdy foam! -- Im using it along my raised garden beds so I can crawl across the area that's covered w wood chips to work. I cover up lumber edges w old staples with one edge too, and can push myself up & slide it along beneath me. Great on my knees and elbows. Eliminates the need to constantly get up & down. Nice thick, sturdy foam! Gets slippery fast if I hit it w the hose!
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Reviewed in the United States on May 24, 2026
K
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Kelly B. - Honest Hands-On
Port Orchard, US
★★★★★ 5
Durable and Comfortable Yoga Mat That Lasts
Color: Red
The BalanceFrom Go Yoga All Purpose Exercise Mat has proven to be a long-lasting and reliable piece of equipment. After seven years of use, it still holds up well, showing how durable the anti-tear material really is. The thickness provides great cushioning for yoga, stretching, or floor workouts, making it comfortable to use on hard surfaces without slipping. The included carrying strap makes it easy to transport to classes or the gym, and the lightweight design is convenient without sacrificing support. Even after years of use, the mat remains easy to clean and hasn’t worn down the way cheaper mats often do. While the surface may show some signs of age, the overall performance has stayed strong, which makes it an excellent value for the price. Pros: Extremely durable even after years, comfortable cushioning, and convenient with a carry strap included. Cons: The surface can show wear over time, it may feel bulky compared to thinner mats, and the texture may not suit those who prefer a firmer grip. A dependable yoga mat that lasts for years while staying comfortable and practical. For anyone looking for a durable, affordable mat, this one delivers excellent long-term value.
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Reviewed in the United States on August 30, 2025

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