Forerunner 45S | Black
Forerunner 45S | Black

Forerunner 45S | Black

Regular price $199.99 $199.99 Unit price per

Physical & Performance

GPS Yes
Display resolution 208 x 208 pixels
Weight

Small: 32 g
Large: 36 g

Display type sunlight-visible, transflective memory-in-pixel (MIP)
Battery life Smartwatch Mode: Up to 7 days
GPS mode: Up to 13 hours
Display size 1.04" (26.3 mm) diameter

Maps & Navigation

Memory/History 200 hours of activity data

Features

Cardio workouts No
Time/date yes
% HRR No
Water rating 5 ATM
Around Me mode No
Closed Circuit Rebreather (CCR) No
Automatically saves dive entry and exit locations No
Training Effect (anaerobic) No
TruSwing™ compatible No
Customizable data pages Yes
HR Broadcast (broadcasts HR data over ANT+™ to paired devices) Yes
Anchor Alarm No
Hazards and course targets No
Drill logging (pool swim only) No
Garmin AutoShot™ No
TracBack® No
Auto scroll No
Worldwide airport database(s) No
Controls smartphone music Yes
3-axis compass with HSI (horizontal situation indicator) No
Ambient light sensor No
Heat and altitude acclimation No
Downloadable training plans Yes
Countdown timer No
HR zones Yes
Point-to-point navigation No
Lap Time Repeatability Score (LTR) No
Finish time No
Stat tracking (strokes, putts per round, greens and fairways hit) No
Race an activity No
Step counter Yes
Run workouts Yes
Nitrox support No
Live Event Sharing Android™ Only
Manual lap Yes
Distance traveled Yes
Pulse Ox Blood Oxygen Saturation No
Pairs with Garmin Connect™ Mobile Yes
Training Status (lets you see if you’re training effectively by tracking your training history and fitness level trend.) No
Wirelessly receive flight plans from Garmin Pilot™ No
Future elevation plot No
Gauge mode No
Auto start/end dive No
Measures shot distance (calculates exact yardage for shots from anywhere on course) No
Courses No
Fitness Age yes (in app)
Galileo Yes
Manual multisport activities No
Distance to destination No
Smartphone compatibility iPhone®, Android™
% HR max No
Strength workouts No
Audible alerts No
Lens Material

chemically strengthened glass

Preloaded race tracks No
Automatic club tracking compatible (requires accessory) No
Calendar Yes
Cycle Map (routable cycling-specific street map) No
Find My Phone Yes
Wrist-based Heart Rate (constant, every second) Yes
Text response/reject phone call with text (Android™ only) No
Compatible with Varia™ lights No
Daily Resting Heart Rate Yes
Training Effect No
Night vision mode No
Barometric trend indicator with Storm Alert No
Customizable activity profiles Yes
HR calories Yes
Performance condition (after running 6–20 minutes, compares your real-time condition to your average fitness level) No
Hunt/fish calendar No
Alarm clock Yes
LiveTrack Yes
Dual grid coordinates No
Assistance yes (Smartphone Required)
Available cycling profiles

Biking. Indoor Biking may be added through app

Strap material

silicone

Auto Lap® Yes
Auto Pause® Yes
Dive ascent/descent rate indicator No
PlaysLike distance No
Task timers (2, 5, 10, 15, 20 and 30 minutes) No
Compatible with Varia Vision™ (head-mounted display) No
Activity history on watch Yes
Advanced workouts Yes
Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories) No
Body Battery™ Energy Monitor Yes
Tack assist mode No
Multi-gas mode No
Training Load (your total training load for the last 7 days calculated from estimated EPOC) No
Storm alert No
Power meter compatible No
Track timer No
Quick Release Bands No
Trendline™ Popularity Routing No
Respiration rate (during exercise) No
Ground contact time and balance (shows how much time, in the running motion, your foot is on the ground rather than in flight and lets you check your running symmetry) No
XERO™ Locations No
Yardage to F/M/B (distance to front, middle and back of green) No
Gyroscope No
Auto max HR No
Abnormal Heart Rate Alerts yes (high and low)
Analog hands No
Training load focus No
Compass No
FTP (Functional Threshold Power) No
Thermometer No
Course guidance No
Orienteering No
Depth sensor No
Barometric altimeter No
Area calculation No
GPS Time Sync Yes
Race App No
60-minute activity goal No
Countdown start (pool swim only) No
Bike lap and lap maximum power (with power sensor) No
Automatic rep counting No
Physical size

39.5 x 39.5 x 11.4 mm

Fits wrists with a circumference of 124-185 mm

APNEA hunt mode No
Full vector map No
VIRB® Remote No
Round timer/odometer No
Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only) No
Pulse Ox Blood Oxygen Saturation Monitor No
Respiration rate (24x7) No
GLONASS Yes
Reminder alerts No
Projected waypoint No
ClimbPro™ Ascent Planner No
Sunrise/sunset times No
Find My Watch Yes
Speed and cadence sensor support

yes

Preloaded topographical maps No
Vertical oscillation and ratio (the degree of 'bounce' in your running motion and the cost-benefit ratio with stride length) No
Cadence (provides real-time number of steps per minute) Yes
GPS speed and distance Yes
Chores No
Available gym activity profiles Cardio and Elliptical Training, Stair Stepping, Yoga may be added through app
All-day Stress Tracking Yes
Unit-to-unit route/location sharing No
Incident Detection during select activities yes (Smartphone Required)
Foot pod capable Yes
Move IQ™ Yes
Sun and moon information No
Live Delta Time No
Heart rate from external HRM (real-time during rests, interval and session stats during rests, and automatic heart rate download post-swim) No
Pool swim workouts No
Toe-to-Toe™ Challenges No
Back to start No
Automatic daylight saving time Yes
Hydration yes (in Garmin Connect™)
Virtual Partner No
Smart notifications Yes
Green View with manual pin position No
Round-trip course creator (running/cycling) No
Chronograph No
Weather Yes
Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories) No
Interval training Yes
Multiple time zones with Zulu/UTC No
Touch-targeting (touch target on display to see the distance to any point) No
Single-gas mode No
Strava Live Segments No
Race predictor No
Trimix support No
Connectivity yes
Recovery time No
Preloaded with 41,000 courses worldwide No
Sync dive log to Garmin Dive™ Mobile app No
Color display Yes
Garmin Pay™ No
Compatible with BaseCamp™ No
Rewards (coins) No
Virtual starting line No
Built-in barometer and tide tables No
Altimeter with adjustable baro setting No
Connext avionics connectivity No
Auto CourseView updates No
Automatic sync (automatically transfers data to Garmin Connect) No
Intensity minutes Yes
Auto goal (learns your activity level and assigns a daily step goal) Yes
Auto multisport activities No
Stride length (real time) No
Stopwatch Yes
Sleep Yes
Running dynamics No
HRV stress test (measures your heart rate variability while standing still, for 3 minutes, to provide you with an estimated stress level; the scale of this is 1 to 100; low scores indicate lower stress levels) No
Basic rest timer (up from 0) (pool swim only) No
Downloadable cartography support No
Relaxation reminders No
VO2 Max (Run) Yes
Lactate threshold (through analysis of your pace and heart rate, estimates the point where your muscles start to rapidly fatigue) No
GPS coordinates No
Physio TrueUp Yes
Last race summary No
Compatible with Vector™ (power meter) No
Garmin Live Segments No
Unlock new step icons No
HR alerts Yes
Hot keys No
"Repeat on" rest timer (pool swim only) No
Phone-free text messaging No
Advanced sleep monitoring (sleep score & insights) No
Accelerometer Yes
Yardage to layups/doglegs No
Handicap scoring No
GPS-based distance, time and pace Yes
Worldwide NAVAID and Intersection database(s) No
Calories burned Yes
Touch and/or button lock Yes
Advanced Vector support No
Trail run auto climb No
Configurable lap alerts No
Audio prompts Yes
Timer Yes
NEXRAD on moving map No
TrueUp™ Yes
Connect IQ™ (downloadable watch faces, data fields, widgets and apps) yes (watch faces only)
UltraTrac mode No
Vertical speed No
Available run profiles

Running, Treadmill Running. Indoor Track Running may be added through app

Touchscreen No
Floors climbed No
Bread crumb trail in real time No
Elevation profile No
Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it) Yes
Custom targets No
PinPointer No
Plays and controls watch music No
Sight 'N Go No
Relaxation breathing timer Yes
Tempo Training No
Garmin Elevate™ wrist heart rate monitor Yes
APNEA mode No
Waypoint information page No
SwingTempo No
Group LiveTrack No
Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) Yes
Moving Map with aviation airports, navaids, roads, bodies of water and more No
Automatic altitude adjustment No
Menstrual Cycle yes (in Garmin Connect™)
In-flight Pulse Ox No
Compatible with Varia™ radar (rear-facing radar) No
Race an Activity No
Primary benefit (Training Effect labels) No
Custom alerts No
Auto lap splits No
Multiple bike profiles No
Total ascent/descent No