Garmin Forerunner 45S GPS Running Watch (39mm)(Iris)

Item # GRFR45SIR (Part # 010-02156-01)
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Item Description:
  • Track Runs with Built-In GPS
  • 24/7 Heart Rate Monitoring
  • Record Distance, Pace, and Intervals
  • Up to 7-Day Battery Life in Watch Mode
  • Garmin Forerunner 45S GPS

    Running is an activity that requires hard work. As such, there are many devices that can help you improve if you’re an avid runner, or training for a 4K run. One great example is a fitness watch. Not only do these watches help when out running, they can also assist you with everyday tasks. One excellent example is the Garmin Forerunner 45S GPS Running Watch (39mm)(Iris) 010-02156-01. This lightweight watch can track your progress when out running, working out, and more. You can also easily track your step count, calories, and intensity minutes. It can even automatically upload to Garmin Connect, receive smart notifications, and monitor your heart rate. Once you start using this watch, you’ll be able to take full advantage of its capabilities every day.

    The Garmin Forerunner 45S tracks your health throughout the day, and monitors your heart rate 24/7. Plus, it also monitors your steps, calories burned, distance, and sleep. Weighing around one ounce, the watch is slim and lightweight, so it won’t get it your way when doing everyday tasks. The watch is also compatible with Garmin Coach adaptive training plans. These plans feature free training plans, and guidance from expert coaches, so you’ll be able to reach your health goals. The smartwatch also has a built-in GPS to your pace, distance, intervals and more. If you pair your watch with a compatible smartphone, you can receive notifications, automatically upload to Garmin Connect, and control your music. offers top quality fitness trackers and smartwatches, like the Garmin Forerunner 45S GPS Running Watch (39mm)(Iris) 010-02156-01, at affordable prices. We also have the knowledge and expertise to help shoppers find exactly what they’re looking for in a purchase. If you are unsure of which fitness watch to order, try calling our customer service center, and they will be happy to help you decide on the right product to suit your needs and budget. If you would like to take advantage of our great coupons and discount offers, please head over to our coupons page and start saving today.

    Keep tabs on your essential running stats and health with the Forerunner 45S GPS Running Watch from Garmin. Featuring easy-to-use button controls, the Forerunner 45S can use its built-in GPS to track where you run and provide you with accurate results, such as distance, pace, and intervals.

      • GPS Running Watch with Garmin Coach Training Plan Support 

      • 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 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 contacts

      • 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 45 is the 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 45 also monitors heart rate at the wrist, day and night.

    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 45 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 45 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 45 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 45 GPS running watch offers extensive activity and wellness tracking features. Wear it 24/7 to monitor daily steps, distance, calories burned and even sleep¹. 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 45. 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.



    Display Size
    1.04" / 26.4 mm
    Display Type
    Screen Resolution
    240 x 240
    Pixel Density
    283 ppi
    Watch Crystal Material
    Chemically Strengthened Glass

    Wireless Connectivity
    Global Positioning
    GPS, GLONASS, Galileo

    Accelerometer, Optical Heart Rate
    OS Compatibility

    Memory Retention
    200 Hours (Activity Data)

    Estimated Battery Life
    7 Days (Smartwatch Mode)
    13 Hours (GPS On)

    Water Resistance Depth
    5 ATM (Pressure Equivalent to 164.04' / 50 m)
    Splash Proof

    Band Material
    Band Circumference
    4.9 to 7.3" / 124 to 185 mm

    1.56 x 1.56 x 0.45" / 39.5 x 39.5 x 11.4 mm
    1.1 oz / 32 g

    Garmin Forerunner 45SGPS Running Watch
    Charging Cable
    Limited 1-Year Warranty
    This Kit Includes: