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Garmin Forerunner 45S, 39mm Easy-to-use GPS Running Watch with Coach Free Training Plan Support, Black

4.5 4.5 out of 5 stars 6,857 ratings
Black (small)
45s
Watch
Brand GARMIN
Model Name Forerunner 45S, Black
Style 45s
Color Black (small)
Screen Size 1.04 Inches
Special Feature Track Runs with Built-In GPS; 24/7 Heart Rate Monitoring; Record Distance, Pace, and Intervals, Sleep and Stress Monitoring; Incident Detection and Remote Assistance; Receive Text and Call Alerts See more
Shape Round
Target Audience Unisex Adults
Age Range (Description) Adult
Compatible Devices Smartphone

About this item

  • Gps running Watch with Garmin Coach training plan support.Supported Application:GPS. Connectivity technology:GPS. Wireless comm standard:Bluetooth
  • Smaller-sized easy-to-use running watch estimates 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. Smartphone compatibility - iPhone, Android
  • 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 paired compatible smartphone
  • Safety and tracking Features include incident detection (during select activities) which sends your real-time location to emergency contacts through your paired compatible smartphone
  • Included Components: Forerunner 45S; Charging Cable; Documentation
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Garmin Forerunner 45S, 39mm Easy-to-use GPS Running Watch with Coach Free Training Plan Support, Black
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Price—$169.95$163.07$99.95-18% $246.30
List: $299.99		-10% $179.99
List: $199.99
Delivery—
Get it as soon as Thursday, May 16
Get it as soon as Thursday, May 16
—
Get it as soon as Thursday, May 16
Get it as soon as Saturday, May 18
Customer Ratings
4.54.5 out of 5 stars6,857
4.54.5 out of 5 stars6,857
4.54.5 out of 5 stars6,857
4.44.4 out of 5 stars11,475
4.44.4 out of 5 stars1,275
4.64.6 out of 5 stars2,471
Mobile App
4.3
4.3
4.3
4.0
4.5
4.5
Battery life
4.3
4.3
4.3
4.5
4.6
4.6
Accuracy
4.2
4.2
4.2
3.8
4.3
4.4
Sleep tracking
4.1
4.1
4.1
3.9
4.5
4.1
Mileage
4.3
4.3
4.3
—
—
4.4
Sold By
—
Big Rocket Man USA
Beach Camera Same Day Shipping
Heart Rate Monitors USA
Amazon.com
Stavvy Sales
size
39MM
42MM
42MM
—
—
One Size
display size
1.04 inches
1.04 inches
1.04 inches
1968.51 inches
1.2 inches
1.04 inches
connectivity tech
GPS
Bluetooth
GPS
—
Bluetooth, USB, Wi-Fi
Bluetooth
supported applications
GPS
GPS, Fitness Tracker, Heart Rate Monitor, Sleep Monitor, Music Player
Phone
Sleep Monitor, Heart Rate Monitor, Alarm, Phone, Fitness Tracker, Reminders
GPS
GPS
input interface
buttons
buttons
buttons
touch screen
buttons, touch screen
buttons
wireless standard
bluetooth
bluetooth
bluetooth
bluetooth
bluetooth
bluetooth

Product guides and documents

User Manual (PDF)

From the manufacturer

Garmin Forerunner 45S
Garmin Forerunner 45S
Garmin Forerunner 45S

What's in the box

  • Forerunner 45S; Charging Cable; Documentation

    • Looking for specific info?

    Product Description

    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.

    Product information

    Feedback

    Garmin Forerunner 45S, 39mm Easy-to-use GPS Running Watch with Coach Free Training Plan Support, Black

    Garmin Forerunner 45S, 39mm Easy-to-use GPS Running Watch with Coach Free Training Plan Support, Black

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    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    6,857 global ratings

    Customers say

    Customers like the ease of use, quality and accuracy of the wearable computer. They mention that it's simple, straightforward and reliable. They appreciate the comprehensive activity tracking features and the GPS that accurately tracks a variety of workouts. That said, some complain about the connectivity and performance, battery life and value.

    AI-generated from the text of customer reviews

    142 customers mention103 positive39 negative

    Customers find the wearable computer easy to use. They mention that it's responsive, user-friendly, and straightforward. They appreciate the built-in heart rate sensor and the easy-to-read interface.

    "...even in direct sunlight, and the touchscreen is responsive and user-friendly...." Read more

    "...I like this watch because it pretty simple...." Read more

    "...Very frustrating and it falls so far short of expectations that it should not even be promoted by Garmin as a feature on these watches...." Read more

    "...The most pleasant surprise has been the accuracy and convenience of the built in heart rate monitor, which over the past three long distance runs..." Read more

    125 customers mention106 positive19 negative

    Customers like the quality of the wearable computer. For example, they mention it's a good watch, reliable, and solid. Some say the band is holding up well and the buttons feel solid. Overall, most are satisfied with the quality and functionality of the product.

    "...The Garmin 010-02156-05 Forerunner is an exceptional sports watch that has greatly enhanced my fitness tracking and training experience...." Read more

    "This watch is a simple fitness tracker with a good app. It has worked great for my running, walking tracking. It also works great as a watch...." Read more

    "...Buttons feel solid.5. able to provide almost all functionality without requiring a smartphone or app ( privacy)..." Read more

    "...The craftsmanship is outstanding, and it exceeds my expectations in terms of both design and functionality...." Read more

    115 customers mention88 positive27 negative

    Customers like the accuracy of the wearable computer. For example, they mention the GPS is very accurate, the step tracker is very reliable, and the watch does a great job of tracking distance and time. They appreciate the built-in heart rate monitor, which provides real-time heart rate data. Some say the sleep monitor is surprisingly accurate and tracks runs and calories burned more accurately than stand alone fitness apps. Overall, most are happy with the accuracy and functionality of the product.

    "...The built-in heart rate monitor is also highly accurate and provides real-time heart rate data, helping me optimize my training and monitor my..." Read more

    "...It seems to do well on route logging, distance, pace, etc...." Read more

    "...Additional benefits:1. the sleep monitor is surprisingly accurate, and somewhat eye-opening in terms of understanding the sleep cycle every..." Read more

    "...It doesn't really stop me from doing my activity but going with GPS is annoying. I found online that the problem is with a CPE file...." Read more

    107 customers mention79 positive28 negative

    Customers like the tracking features of the wearable computer. They say it has comprehensive activity tracking features that make it a valuable tool for tracking all useful information, including distance, HR, stress level, calories, steps, and more. The easy-to-read interface makes it great for daily step tracking and the Garmin apps track all the stats from their activities. It uses GPS to ensure it accurately tracks a variety of workouts. Customers also say the watch continuously records heart rate and steps, so they can see how their pace and run cadence. Overall, customers find the watch to be a simple fitness tracker with a good app.

    "...Its accurate GPS tracking, long battery life, and comprehensive activity tracking features make it a valuable tool for athletes and fitness..." Read more

    "It’s got a lot of vital stats like Heart Rate, Sleep Tracking information and calories burned...." Read more

    "...The sleep tracker is not too accurate. There are several days where I’ve been wide awake rolling around in bed, yet the tracker says I am asleep...." Read more

    "This watch is a simple fitness tracker with a good app. It has worked great for my running, walking tracking. It also works great as a watch...." Read more

    136 customers mention82 positive54 negative

    Customers are mixed about the performance of the wearable computer. Some mention that it works well so far, while others say that it randomly won't work, fails miserably in that aspect, and doesn't respond.

    "...02156-05 Forerunner is a top-notch sports watch that delivers on performance and functionality...." Read more

    "...No real complaints as a running watch!A lot of the displays could use work. Things aren't labeled...." Read more

    "...It has worked great for my running, walking tracking. It also works great as a watch...." Read more

    "...7. display works well in most situations, even direct sunlight. there is a backlight button, for very lowlight situations8...." Read more

    101 customers mention61 positive40 negative

    Customers have mixed opinions about the battery life of the wearable computer. Some mention that it lasts for a long time on a battery charge, while others say that it needs to be charged every 3 days.

    "...Its accurate GPS tracking, long battery life, and comprehensive activity tracking features make it a valuable tool for athletes and fitness..." Read more

    "...I am noticing the longer I have the watch, the shorter the battery life is getting...." Read more

    "...Finally it has a long battery life and is easy to charge assuming you have the right charger as I had to get a free replacement one from Garmin." Read more

    "Been using it for over a year. Easy to navigate, lightweight, and long battery life." Read more

    85 customers mention53 positive32 negative

    Customers are mixed about the value of the wearable computer. Some mention it's great value for money, a great budget activity watch, and saves them some money. However, others say that it'd be a disappointment for the investment, with health features that are of debatable value and accuracy.

    "...If you are looking for an affordable running watch, this is it." Read more

    "...if the watch can't sustain through normal use, it's a disappointment for the investment...." Read more

    "...and am thoroughly impressed with its exceptional quality and great value for money...." Read more

    "...Overall, great and affordable exercise tracker" Read more

    90 customers mention22 positive68 negative

    Customers are dissatisfied with the connectivity of the wearable computer. They mention that it takes forever to connect to GPS, it takes several minutes to link to the satellite, and that the GPS aspect takes ages to lock on. They also say that they have had a little trouble connecting to Bluetooth at times, and the HR can lag a bit.

    "great for running, although the gps is a bit slow. No real complaints as a running watch!A lot of the displays could use work...." Read more

    "...I had those issues too at first. It was extremely frustrating downloading the firmware update when the watch wouldn't stay connected to my phone...." Read more

    "...This app seamlessly syncs with the watch, allowing me to review and analyze my workouts, set goals, and compete with friends...." Read more

    "...At times I waited 20 minutes for it to connect. It doesn't really stop me from doing my activity but going with GPS is annoying...." Read more

    Muy funcional
    5 Stars
    Muy funcional
    Llegó antes del tiempo esperado, su tamaño es perfecto para mi muñeca que es bastante delgada, ni muy grande ni muy pequeño. Tiene las funciones que necesito, la carga funciona genial, es resistente al agua. Apenas lo estoy probando y siento que ha sido una muy buena compra.
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    Top reviews from the United States

    Clauz
    5.0 out of 5 stars Muy funcional
    Reviewed in the United States on May 4, 2024
    Color: WhiteStyle: 45sPattern Name: WatchVerified Purchase
    Llegó antes del tiempo esperado, su tamaño es perfecto para mi muñeca que es bastante delgada, ni muy grande ni muy pequeño. Tiene las funciones que necesito, la carga funciona genial, es resistente al agua. Apenas lo estoy probando y siento que ha sido una muy buena compra.
    Customer image
    Clauz
    5.0 out of 5 stars Muy funcional
    Reviewed in the United States on May 4, 2024
    Llegó antes del tiempo esperado, su tamaño es perfecto para mi muñeca que es bastante delgada, ni muy grande ni muy pequeño. Tiene las funciones que necesito, la carga funciona genial, es resistente al agua. Apenas lo estoy probando y siento que ha sido una muy buena compra.
    Images in this review
    Customer image
    Customer image
    One person found this helpful
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    Hungry-4-the-Word
    5.0 out of 5 stars A dear, dear friend
    Reviewed in the United States on February 12, 2022
    Color: BlackStyle: 45Pattern Name: WatchVerified Purchase
    How do we know how much we love someone or something? By how much/how little we rejoice when being reunited. Back in August 21', my Garmin Forerunner 230--my second watch of that model--broke when I slipped on a pothole during a long distance run in Jerusalem. Because I wear the face of the watch on the under wrist, it broke while I was breaking my fall. I loved this watch, even though it was an older model that had been phased out of production, and I purchased both it and the previous unit as "refurbished" watches on Amazon. I wore this watch in tandem with a Garmin chest strap to get the most accurate heart rate reading I could during these long runs. When the watch broke, I didn't bother ordering a new one, as I was overseas and preferred to wait until I would be back home in the USA in couple of months. While I missed not having a watch to measure the distances and paces of my runs, I felt a certain "release" and freedom to run without the compulsion to always look down at my watch to see how many miles were behind me, or what my running pace was. I felt free to simply "be in the moment" and enjoy the scenery without defining the moment by my live stats...

    ...Until four months later, when I started to miss my Garmin. I was going to look for another outdated, refurbished Forerunner 230, but when I looked for it on the Amazon site, I kept being directed to a new Forerunner 45 instead. The display was very different from the 230, and as I read about its features, I thought it has too many "bells and whistles" that I don't need....like the "body battery" feature, concerning which I was quite cynical as to how accurate such a feature could really be (similar to my cynicism about my previous watch's claim to be able to measure my VO2 max). Notwithstanding, at only $139, I considered the watch a great value and purchased it.

    Just one week into wearing it, I can't take it off...I'm addicted to it! The most pleasant surprise has been the accuracy and convenience of the built in heart rate monitor, which over the past three long distance runs has proven itself to be every bit as good and accurate as the Garmin chest strap I formally wore with the 230. Now I have around-the-clock, 24 hour heart readings, including my resting heart beat, which again is very accurate (mind you, I wear the watch with the face on the under wrist, which probably provides for a more accurate pulse reading). And the feature I was most cynical about, the "body battery," has also proven itself a delightful and accurate edition to the repertoire of my watch's features. How do I know it is accurate? Simply because it accurately expresses exactly how I feel! It is really amazing. Even the clock display, which I thought I would never grow to like--it displays the minutes beneath the hours--has grown on me in just a week, and no longer bothers me. Whereas I used to take off my other Garmins when I went to bed, as they didn't have any features I felt I need during the night, the 45 model begs to be worn around-the-clock, as it provides vital information--heart rate, sleep, and body clock summaries--the next morning. With these features, especially the "body battery," the watch is tutoring me as to what my realistic fitness aims should be, on a particular day. If the body battery displays a 25/100 charge, I probably shouldn't attempt a 12 mile run, like I did nonetheless yesterday, I failed to complete it before hitting "the wall." I highly recommend this watch an model, which is becoming a dear, dear friend.
    50 people found this helpful
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    R.K.
    5.0 out of 5 stars Everything I needed, and more
    Reviewed in the United States on January 16, 2022
    Color: BlackStyle: 45Pattern Name: WatchVerified Purchase
    Given the proliferation of fitness trackers these days, it was difficult deciding which one to get. My primary requirements :

    1. accurate heart rate monitor (walking, running biking. Not planning to wear it while swimming). Accuracy is important to ensure maintaining correct heart rate depending on the goal eg fat burn vs cardio.
    2. accurate standalone GPS to measure distances
    3. decent step counter
    4. buttons, not touchscreen (to be able to operate by touch eg while biking). Buttons feel solid.
    5. able to provide almost all functionality without requiring a smartphone or app ( privacy)

    this is the review after wearing the FR45 almost continuously for 4 weeks, only taking it off while showering or charging. the FR45 meets all these requirements. the Garmin Connect has a windows application, which can sync directly with the watch over USB. it does require setting up an account with an email address, but no other information is gathered. I am able to use this app to view historical data, trends etc without having to use the smartphone app.

    Additional benefits:
    1. the sleep monitor is surprisingly accurate, and somewhat eye-opening in terms of understanding the sleep cycle every night. I think it can drive better sleeping habits
    2. stated battery life is 7 days without using GPS. I'm able to get about 6 days, using GPS for about 2-3 hours during that period
    3. If one is so inclined, your profile can be connected to apps like MyFitnessPal to track your calorie intake and get a view of overall calorie input and output. I don't use it
    4. the Stress and 'Body battery' indicators are fun to see (not sure how accurate/useful)
    5. you can participate in group activities, challenges etc
    6. you can track all useful information (distance, HR, stress level, calories, steps etc) easily on the watch itself, though it might be somewhat small to look at
    7. display works well in most situations, even direct sunlight. there is a backlight button, for very lowlight situations
    8. Garmin Connect windows app provides a very nice clean interface, and a helpful dashboard to be able to see daily and historical info and trends. there is a lot more in there that I'm not using at this time.
    9. looks nice.

    Others have reporting issues with the wristband, i did feel a bit of itching and irritation in the beginning, probably because i wore to too tight, but am able to adjust to it by switching wrists daily and not wearing it too tightly.

    Some things that could be better:
    1. the heart rate counter has trouble keeping up with rapid changes. for eg, if I go from walking to running on the treadmill, the watch takes anywhere from 30s to 2 mins to catch up with the new HR. Same with slowing down. This is probably the biggest issue I've faced, but can get used to it. when it does catch up though, its accurate to within 1-2 heartbeats (compared with finger oximeter, treadmill monitor)

    2. GPS can sometimes take frustratingly long to get active. Syncing frequently seems to solve this issue (i only sync with the laptop once every 5-6 days, so maybe this might be just a problem for me

    3. step tracker is a bit iffy, I'll usually wake up on the morning with about 100-200 steps in the counter (basically arm movements seem to trigger it). brushing teeth can also give you some steps :) not a big issue, just discount about 400-500 steps from your daily count to account for these conditions.

    Overall, I'm very satisfied with this purchase, and feels like this would be solid performer for years to come, or at least until the battery gives out.
    42 people found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    MARIA JOSE
    5.0 out of 5 stars Buen producto
    Reviewed in Mexico on April 22, 2024
    Color: BlackStyle: 45Pattern Name: WatchVerified Purchase
    Buena calidad, y buen precio
    Report
    Guadalupe Gonzalez
    5.0 out of 5 stars Excelente
    Reviewed in Mexico on September 13, 2023
    Color: Black (small)Style: 45sPattern Name: WatchVerified Purchase
    Excelente calidad
    Report
    Brad
    5.0 out of 5 stars Great Basic GPS Watch
    Reviewed in Canada on July 12, 2023
    Color: BlackStyle: 45Pattern Name: WatchVerified Purchase
    I purchased this watch to replace a Garmin Forerunner 35 that I had for years as it was on it's last legs. I found this watch to be easy to add to the Gamin Connect app so I could seamlessly keep using that for my workouts and other data. I especially like the GPS feature so I can just go for a run anywhere I want and I know how far I have gone. This eliminates the need to carry my phone or repeatedly run the same pre measured routes. This Forerunner 45 is about the least expensive sports watch I could find that had the built in GPS. I find the distance tracking to be quite accurate based on using it on known routes that had distance measured previously.

    The battery life is excellent and it can go for a number of days without recharging. However, one of the minor issues I have with this watch over the 35 is that I have to take it off to charge it as the charger plugs into the back. With the 35, the charger kind of clipped on the side so I could continue wearing it while charging. I typically charged it when working by simply plugging it into my laptop.

    The Forerunner 45 was also easy to pair with my phone and gives me notifications for emails, texts, incoming calls, etc. However, I do find the display on this watch a bit harder to read than the 35. There is more info to see and the text is smaller on this watch. But, I am on the older side, so any younger users with better eyesight may not have any issues with this.

    Overall, this is an excellent, basic, fitness and smart watch. And with the built in GPS at this price level, it can't be beat.
    6 people found this helpful
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    Verenyce
    5.0 out of 5 stars Excelente reloj
    Reviewed in Mexico on March 7, 2024
    Color: WhiteStyle: 45sPattern Name: WatchVerified Purchase
    Muy bonito, cumple con sus funciones, no he tenido problemas con mi reloj
    Report
    Cliente Amazon
    5.0 out of 5 stars Entregue no prazo, ótimo produto!
    Reviewed in Brazil on November 25, 2020
    Color: WhiteStyle: 45sPattern Name: WatchVerified Purchase
    Vendedor excelente, entregou no prazo! Relógio é apenas maravilhoso. O app é super completo estou amando!
    One person found this helpful
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