Forerunner 45S is the smaller-sized GPS running watch with all the running-related features you need in a sleek, lightweight smartwatch you’ll want to wear all day and night.
Monitors heart rate at the wrist1, because a finger on the pulse is so old school.
For concrete proof that you crushed it, GPS tracks pace, distance, intervals and more.
Get yourself on the road to glory with free Garmin Coach adaptive training plans.
Say goodbye to missed texts with smart notifications2 delivered right to your wrist.
We’ve got your back with built-in incident detection and assistance features3.
Log more miles between charges with up to 7 days of battery life.
Run far with a smaller-sized lightweight watch that fits comfortably and won't hold you back.
The sweat-ready silicone band makes chafing a thing of the past.
These adaptive training plans feature guidance from expert coaches and free training plans that adapt to you and your goals. Workouts sync right to your watch.
Switch up your workout routine with activity profiles for cycling, treadmill running, indoor track, elliptical, cardio, yoga and more.
The watch constantly samples your heart rate1and will alert you if it stays too high or too low while you’re at rest. It also helps gauge how hard you work during activities.
Track where you run, and get accurate stats, including distance, pace and intervals.
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.
Find out if you’re having a calm, balanced or stressful day. Relax reminders will even prompt you to do a short breathing activity.
Track your body’s energy levels so you can find the best times for activity and rest.
While you’re out and about, Forerunner 45S tracks steps, intensity minutes and more.
Receive emails, texts and alerts right on your watch when paired with a compatible smartphone.
If you feel unsafe or if your watch senses that an incident occurred, assistance and incident detection features3 send your location to emergency contacts.
Download custom watch faces, add data fields, and get apps and widgets from the Connect IQ Store.
Easily control the music playing on your phone, so you can skip songs without missing a beat.
Upload your activities to the Garmin Connect app to interact with a thriving online community where people on the go can connect and compete — and even share their triumphs via social media.
General |
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LENS MATERIAL | Chemically strengthened glass |
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STRAP MATERIAL | Silicone |
PHYSICAL SIZE | Small: 39.5 x 39.5 x 11.4 mm Fits wrists with a circumference of 124-185 mmLarge: 42 x 42 x 11.4 mm Fits wrists with a circumference of 129-197 mm |
COLOUR DISPLAY | Yes |
DISPLAY SIZE | 1.04" (26.3 mm) diameter |
DISPLAY RESOLUTION | 208 x 208 pixels |
DISPLAY TYPE | Sunlight-visible, transflective memory-in-pixel (MIP) |
WEIGHT | Small: 32 g Large: 36 g |
BATTERY LIFE | Smartwatch Mode: Up to 7 days; GPS mode: Up to 13 hours |
WATER RATING | 5 ATM |
MEMORY/HISTORY | 200 hours of activity data |
Clock features |
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TIME/DATE | Yes |
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GPS TIME SYNC | Yes |
AUTOMATIC DAYLIGHT SAVING TIME | Yes |
ALARM CLOCK | Yes |
TIMER | Yes |
STOPWATCH | Yes |
Sensors |
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GPS | Yes |
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GLONASS | Yes |
GALILEO | Yes |
GARMIN ELEVATE™ WRIST HEART RATE MONITOR | Yes |
ACCELEROMETER | Yes |
Daily smart features |
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CONNECTIVITY | Yes |
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CONNECT IQ™ (DOWNLOADABLE WATCH FACES, DATA FIELDS, WIDGETS AND APPS) | Yes (watch faces only) |
SMART NOTIFICATIONS | Yes |
CALENDAR | Yes |
WEATHER | Yes |
CONTROLS SMARTPHONE MUSIC | Yes |
FIND MY PHONE | Yes |
FIND MY WATCH | Yes |
SMARTPHONE COMPATIBILITY | iPhone®, Android™ |
COMPATIBLE WITH GARMIN CONNECT™ MOBILE | Yes |
Safety and tracking features |
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LIVETRACK | Yes |
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LIVE EVENT SHARING | Android™ Only |
INCIDENT DETECTION DURING SELECT ACTIVITIES | Yes (Smartphone required) |
ASSISTANCE | Yes (Smartphone required) |
Activity tracking features |
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STEP COUNTER | Yes |
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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 MONITORING (MONITORS TOTAL SLEEP AND PERIODS OF MOVEMENT OR RESTFUL SLEEP) | Yes |
CALORIES BURNED | Yes |
DISTANCE TRAVELLED | Yes |
INTENSITY MINUTES | Yes |
TRUEUP™ | Yes |
MOVE IQ™ | Yes |
FITNESS AGE | Yes (in app) |
BODY BATTERY™ ENERGY MONITOR | Yes |
ALL-DAY STRESS TRACKING | Yes |
Fitness equipment/gym |
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AVAILABLE GYM ACTIVITY PROFILES | Cardio and Elliptical Training, Stair Stepping, Yoga may be added through app |
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Training, planning and analysis features |
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GPS SPEED AND DISTANCE | Yes |
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CUSTOMISABLE SCREEN(S) | Yes |
CUSTOMISABLE ACTIVITY PROFILES | Yes |
AUTO PAUSE® | Yes |
INTERVAL TRAINING | Yes |
ADVANCED WORKOUTS | Yes |
DOWNLOADABLE TRAINING PLANS | Yes |
AUTO LAP® | Yes |
MANUAL LAP | Yes |
VO2 MAX | Yes |
AUDIO PROMPTS | Yes |
TOUCH AND/OR BUTTON LOCK | Yes |
ACTIVITY HISTORY ON WATCH | Yes |
PHYSIO TRUEUP | Yes |
Heart rate features |
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HR ZONES | Yes |
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HR ALERTS | Yes |
HR CALORIES | Yes |
HR BROADCAST (BROADCASTS HR DATA OVER ANT+™ TO PAIRED DEVICES) | Yes |
Running features |
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AVAILABLE RUN PROFILES | Running, Treadmill Running. Indoor Track Running may be added through app |
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GPS-BASED DISTANCE, TIME AND PACE | Yes |
CADENCE (PROVIDES REAL-TIME NUMBER OF STEPS PER MINUTE) | Yes |
RUN WORKOUTS | Yes |
FOOT POD CAPABLE | Yes |
Cycling features |
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ALERTS (TRIGGERS ALARM WHEN YOU REACH GOALS INCLUDING TIME, DISTANCE, HEART RATE OR CALORIES) | Yes |
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AVAILABLE CYCLING PROFILES | Biking, Indoor Biking may be added through app |
SPEED AND CADENCE SENSOR SUPPORT (WITH SENSOR) |
Apps
Garmin Connect™ Mobile
010-D1303-01
Adapters
AC Adapter Cable, Europe
010-11478-05
USB Power Adapter
010-11921-17
Bands
Forerunner® 45S Bands, Iris
010-11251-2A
Forerunner® 45S Bands, White
010-11251-2B
Cases, Covers & Clips
Carrying Case
010-10718-01
Cables & Chargers
Charging/Data Cable (0.5 m)
010-12491-01
Heart rate monitors
HRM-Dual™
010-12883-00
Cycling accessories
Bike Cadence Sensor Bands
010-12104-02
Sensors
Speed Sensor 2
010-12843-00
Cadence Sensor 2
010-12844-00
Bike Speed Sensor 2 and Cadence Sensor 2 Bundle
010-12845-00