Forerunner 45S, White, Garmin
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Forerunner 45S, White

Garmin

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A Running Watch That Won't Slow You Down

The Forerunner 45S is an elegant, compact, and lightweight GPS smart running watch equipped with all the running features you need, and you can wear it day and night.

  • It tracks your wrist-based heart rate1, because using your finger is so old-fashioned.
  • GPS tracks pace, distance, intervals, and other parameters for concrete proof of your achievements.
  • Embark on the path to glory with free customizable training plans from Garmin Coach.
  • Say goodbye to missed messages with smart notifications2 delivered directly to your wrist.
  • We've got your back with built-in incident detection and assistance features3.
  • Track more miles between charges with up to 7 days of battery life.

Garmin Coach

These customizable training plans provide you with advice from expert coaches and free training plans that adapt to you and your goals. Workouts sync directly to your watch.

Built-in Sports Apps

Change up your exercise routine with activity profiles for cycling, treadmill running, indoor track running, elliptical, cardio, yoga, and more.

Wrist-based Heart Rate Sensor

Gain insight into heart rate data1 with alerts if your heart rate stays high during rest. Measure even the effort of your heart during activities.

Built-in GPS

Track where you run and get precise statistics that include distance, pace, and intervals.

Battery Life

Run to your heart's content with up to 7 days of battery life in smartwatch mode and up to 13 hours in GPS mode.

Stress Tracking

Find out whether you're having a calm, balanced, or stressful day. Relaxation reminders will even prompt you to perform a short breathing activity.

Body Battery™ Energy Monitor

Measure your body's energy level to find the best times for activity and rest.

Fitness Tracking

As you move, the Forerunner 45S tracks steps, floors climbed, intensity minutes, and more.

Smart Notifications

Receive emails, messages, and alerts directly on your watch when paired with a compatible smartphone.

Safety and Tracking Features

If you don't feel safe or if the watch detects an incident, safety and tracking features3 send your location to emergency contacts.

Connect IQ™ Store

Download custom watch faces, add data fields, and download apps and widgets from the Connect IQ Store.

Music Control

Easily manage the music playing on your phone without stopping to change songs.

Sync with Garmin Connect™ App

Upload your activities to the Garmin Connect app to interact with a thriving online community where active individuals connect, compete, and even share their achievements on social media.

1 Accuracy of activity tracking
2 When paired with a compatible smartphone
3 When paired with a compatible smartphone. For more details on safety and tracking feature requirements and limitations, visit Garmin.com/safety.

Specifications:

General
LENS MATERIAL Chemically Strengthened Glass
STRAP MATERIAL

Silicone
CASE SIZE, W x D x H

Small (S): 39.5 x 39.5 x 11.4 mm
Fits wrists with a circumference of 124 – 185 mm

Large (L): 42 x 42 x 11.4 mm
Fits wrists with a circumference of 129 – 197 mm
COLOR DISPLAY Yes
DISPLAY SIZE, W x H Diameter 26.3 mm (1.04 inches)
DISPLAY RESOLUTION, W x H 208 x 208 pixels
DISPLAY TYPE Sunlight-visible, transflective, memory-in-pixel (MIP)
WEIGHT

Small (S): 32 g
Large (L): 36 g
BATTERY LIFE Smartwatch mode: Up to 7 days; GPS mode: Up to 13 hours
WATER RESISTANT Yes (50m)
BUILT-IN MEMORY Data for 200 hours of activity

Watch Functions
WATCH FUNCTIONS

Yes
TIME SYNC WITH GPS Yes
AUTOMATIC DAYLIGHT SAVING TIME Yes
ALARM CLOCK Yes
TIMER Yes
STOPWATCH Yes

Sensors
GPS ENABLED Yes
GLONASS Yes
GALILEO Yes
GARMIN ELEVATE™ WRIST HEART RATE MONITOR Yes
ACCELEROMETER Yes

Smart Everyday Features
CONNECTIVITY Yes
CONNECT IQ™ (CUSTOM WATCH FACES, DATA FIELDS, WIDGETS, AND APPS) Yes (watch faces only)
SMART NOTIFICATIONS Yes
CALENDAR Yes
WEATHER Yes
MUSIC CONTROL Yes
FIND MY PHONE Yes
FIND MY WATCH Yes
SMARTPHONE COMPATIBILITY

iPhone®, Android™
COMPATIBLE WITH GARMIN CONNECT™ MOBILE APP Yes

Safety and Tracking Features
LIVE TRACK Yes
REAL-TIME EVENT SHARING Android™ only
INCIDENT DETECTION DURING SELECT ACTIVITIES Yes (requires a smartphone)
ASSISTANCE Yes (requires a smartphone)

Fitness Tracking Features
STEP COUNTER Yes
MOVE BAR (DISPLAYS ON DEVICE AFTER A PERIOD OF INACTIVITY; WALK FOR A COUPLE OF MINUTES TO RESET IT) Yes
AUTO GOAL (LEARNS YOUR ACTIVITY LEVEL AND ASSIGNS A DAILY STEP GOAL) Yes
SLEEP TRACKING (MONITORS TOTAL SLEEP AND PERIODS OF MOVEMENT OR RESTFUL SLEEP) Yes
CALORIES BURNED Yes
DISTANCE TRAVELED Yes
INTENSITY MINUTES Yes
TRUEUP™ Yes
MOVE IQ™ Yes
BODY BATTERY™ ENERGY MONITOR Yes
STRESS TRACKING Yes

Fitness Equipment/Gym
AVAILABLE GYM ACTIVITY PROFILES Cardio Training, Elliptical Training, Stair Stepping, Yoga

Training, Planning, and Analysis Features
GPS SPEED AND DISTANCE Yes
CUSTOMIZABLE DATA FIELDS Yes
CUSTOMIZABLE ACTIVITY PROFILES Yes
AUTO PAUSE® (PAUSE AND RESUME TIMER BASED ON SPEED) Yes
INTERVAL TRAINING (SET UP EXERCISE AND REST INTERVALS) Yes
ADVANCED WORKOUTS Yes
DOWNLOADABLE TRAINING PLANS Yes
AUTO LAP® (AUTOMATICALLY STARTS A NEW LAP) Yes
MANUAL LAP Yes
VO2 MAX ESTIMATION Yes
AUDIBLE PROMPTS Yes
TOUCH AND/OR BUTTON LOCK Yes
ACTIVITY HISTORY ON WATCH Yes
PHYSIO TRUEUP Yes

Heart Rate Features
HEART RATE ZONES Yes
HR ALERTS Yes
CALORIES BURNED BASED ON HEART RATE Yes
HR BROADCAST (BROADCASTS HR DATA OVER ANT+™ TO PAIRED DEVICES) Yes

Running Features
AVAILABLE RUNNING PROFILES

Running profiles, Treadmill running. Running track profile can be added through the app.
TIME, DISTANCE, AND PACE BASED ON GPS Yes
CADENCE (PROVIDES REAL-TIME NUMBER OF STEPS PER MINUTE) Yes
RUN WORKOUTS Yes
RUNNING SENSOR SUPPORT Yes

Cycling Features
TIME/DISTANCE ALERTS (TRIGGERS ALARM WHEN YOU REACH GOALS) Yes
AVAILABLE CYCLING PROFILES Cycling profiles and indoor cycling can be added through the app.
CADENCE (PROVIDES REAL-TIME NUMBER OF STEPS PER MINUTE) Yes

In the Box:

  • Forerunner 45S, White
  • Charging/Data Cable
  • Documentation