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Garmin Forerunner 45S GPS Running Watch - White

Garmin Forerunner 45S GPS Running Watch - White

GPS running watch with Garmin Coach training plan support

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 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.

Highlights des Garmin Forerunner 45S

  • Smaller 39 mm version fits wrists with a circumference of 124-185 mm
  • Extensive running features such as pace, distance and much more
  • More effective training through heart rate and VO2Max measurement
  • Body Battery™ monitors the energy level of your body
  • Personal training plans and Garmin Coach for 5, 10 and 20 km goals
  • Additional indoor and outdoor profiles - such as running, cycling, crosstrainers, yoga and much more
  • Smart notifications and other additional functions via the smartphone
  • Battery life up to 7 days in Smartwatch mode and up to 13 hours in GPS mode
  • Slim, lightweight and attractive design

Details of the Garmin Forerunner 45S

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. 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 night.

Gear up with Garmin Coach

Whether you’re a seasoned runner or just getting off the sofa, 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 detection2. 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. 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 whilst 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. To help you optimise 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 optimise 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 customising Forerunner 45S. It’s compatible with free watch faces from the Garmin Connect IQ™ Store. Choose from thousands of watch faces available to download, or create your custom watch face from your own photos.

Specifications of Garmin Forerunner 45S


  • Physical dimensions: 39.5 x 39.5 x 11.4 mm (fits wrists with a circumference of 124 -185 mm)
  • Display size: 1.04" (26.3 mm) diameter
  • Display resolution: 208 x 208 pixels
  • Display type: sunlight-visible, transflective memory-in-pixel (MIP) - color display
  • Water rating: 5 ATM
  • Battery life: Smartwatch Mode: Up to 7 days; GPS mode: Up to 13 hours
  • Memory/history: 200 hours of activity data

Clock Features

  • Time/date
  • GPS Time Sync
  • Automatic daylight saving time
  • Alarm clock
  • Timer
  • Stopwatch


  • GPS, GLONASS, Galileo
  • Garmin Elevate™ wrist heart rate monitor
  • Accelerometer

Daily Smart Features

  • Connectivity: Bluetooth® Smart, ANT+™
  • Connect IQ™: downloadable watch faces, data fields, widgets and apps
  • Smart Notifications
  • Calendar
  • Weather
  • Controls smartphone music
  • Find my Phone feature
  • Find my Watch feature
  • Smartphone compatibility: iPhone®, Android®
  • Compatible with Garmin Connect™ Mobile

Safety and tracking features

  • Incident Detection during select activities - smartphone required
  • Assistance - smartphone required
  • LiveTrack

Activity Tracking Features

  • Step counter
  • Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it)
  • Auto goal (learns your activity level and assigns a daily step goal)
  • Sleep monitoring (monitors total sleep and periods of movement or restful sleep)
  • Calories burned
  • Distance traveled
  • Intensity minutes
  • TrueUp™
  • Move IQ™
  • Fitness Age - in app
  • Body Battery™ Energy Monitor
  • All-day stress tracking

Fitness equipment/gym

  • Available gym activity profiles: Cardio and Elliptical Training, Stair Stepping, Yoga may be added through app

Training, Planning and Analysis Features

  • GPS speed and distance
  • Customisable screen(s)
  • Customisable activity profiles
  • Auto Pause®
  • Interval training
  • Advanced workouts
  • Downloadable training plans
  • Auto Lap®
  • Manual lap
  • VO2max
  • Audio prompts
  • Activity history on watch
  • Physio TrueUp

Heart Rate Features

  • Heart rate zones
  • Heart rate alerts
  • Heart rate calories
  • Heart Rate Broadcast (broadcasts heart rate data over ANT+™ to paired devices)

Running Features

  • Available run profiles: Running, Treadmill Running. Indoor Track Running may be added through app
  • GPS-based distance, time and pace
  • Running dynamics
  • Run workouts
  • Foot pod capable

Cycling features

  • Available cycling profiles: Biking, Indoor Biking may be added through app
  • Time/distance alerts (triggers alarm when you reach goal)
  • Speed and cadence sensor support (with sensor)


  • Smartphone compatibility: iPhone®, Android™

(optional) Auxiliary equipment: HRM-Dual Heart Rate Monitor
Foot Pod SDM4 ANT+
Speed Sensor 2
Cadence Sensor 2
Included in delivery: Forerunner 45S, USB charging/data cable, Documentation
Kind of functions: Daily smart features
Safety and tracking features
Activity tracking
Training, planning and analysis features
Running features
Cycling features
Fitness equipment/Gym features
Material: lens: chemically strengthened glass
wristband: silicone
Size in mm (L/W/H): 39.5 x 39.5 x 11.4 mm (fits wrists with a circumference of 124-185 mm)
Speciality: Wrist-based Heart Rate Measuring
Physiological Measurement Values
Body Battery
Automatic Incident Detection
Smart Notifications
Pre-installed sports apps
Weight supplement: manufacturer information

Fact Sheet of Garmin Forerunner 45S GPS Running Watch - White

Product Name: Garmin Forerunner 45S GPS Running Watch - White
Manufacturer: Garmin
Item Code: GAR430240
activity: Run
transmission standard: ANT+, Bluetooth
device functions: PC-/App-Analysis, GPS, HRM included, Cadence (optional or included), Plan Training on Device, Calorie Consumption, Smart Notifications, Cycle Computer, Speed Sensor Bike (optional or included), Foot Pod, Pedometer
device version: Sports Watch & Smartwatch
Model year: 2022
Collection: Full year
Color: White
weight: 32g
manufacturer item code: 010-02156-11
Weight Source: Manufacturer
Weighed Version: S
Manufacturer page: