WatchFitTool

Garmin Instinct® E – 45 mm vs Garmin Venu 3SSize, Specs & Wrist Fit Compared

The Garmin Instinct® E – 45 mm wears larger than the Garmin Venu 3S (45mm vs 41mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.

The Garmin Venu 3S is the slimmer of the two (12mm vs 14.2mm), so it slides under a cuff more easily.

On the wrist the Garmin Venu 3S feels lighter (40g vs 48g, case only).

Specification Comparison

SpecGarminInstinct® E – 45 mmGarminVenu 3S
Case Width45mm41mm
Thickness14.2mm12mm
Weight48g40g
ShapeCircularCircular
Water Resistance5 ATM
GPSYes21 hours
Battery LifeSmartwatch: Up to 16 days Battery Saver Watch Mode: Up to 40 days GPS: Up to 24 hours All Satellite Systems:16 hours Max Battery GPS Mode: Up to 50 hours Expedition GPS Activity: Up to 20 days10 days
DisplayMonochrome, sunlight-visible, transflective memory-in-pixel (MIP)1.2 inches
Always-On DisplayYes
Released20252023

Full Specification Comparison

316 specs
SpecGarmin Instinct® E – 45 mmGarmin Venu 3S
Overview
FamilyGarmin
General
Battery lifeSmartwatch: Up to 16 days Battery Saver Watch Mode: Up to 40 days GPS: Up to 24 hours All Satellite Systems:16 hours Max Battery GPS Mode: Up to 50 hours Expedition GPS Activity: Up to 20 days
Battery typeLithium ion
Display Sizecustom, two-window design; 0.9” x 0.9” (23 x 23 mm)
Case materialfiber-reinforced polymer
Lens MaterialChemically Strengthened Glass
Bezel Materialfiber-reinforced polymer
Memory/History128 MB
Strap materialsilicone
Charging methodGarmin proprietary plug charger
Display resolution176 x 176 pixels
QuickFit® watch band compatibleyes (22 mm)
Sensors
GPSYes
CompassYes
GLONASSYes
GalileoYes
ThermometerYes
AccelerometerYes
Barometric altimeterYes
Pulse Ox Blood Oxygen Saturation MonitorYes
Garmin Elevate™ wrist heart rate monitorYes
has GPSYes
has a compassYes
Has a barometerYes
has a gyroscopeYes
Has a cadence sensorNo
has an accelerometerYes
Monitors perspirationNo
Has a heart rate monitorYes
Has a temperature sensorYes
Monitors blood oxygenation levelsYes
Product Info
Main SKU010-02933-00
Product ID1315817
Product NameInstinct® E – 45 mm
Release Date1/6/2025
Product VariationBlack with Charcoal Band
Clock Features
TimerYes
StopwatchYes
Time/dateYes
Alarm clockYes
GPS Time SyncYes
Sunrise/sunset timesYes
Automatic daylight saving timeYes
Cycling Features
CoursesYes
Race an activityYes
Compatible with Varia™ lightsYes
Speed and cadence sensor support (w/sensor)Yes
Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)Yes
Running Features
Run workoutsYes
Race predictorYes
Foot pod capableYes
Running dynamicsYes
Trail run auto climbYes
Run/Walk/Stand detectionYes
Stride length (real time)Yes
Vertical oscillation and ratioYes
Ground contact time and balanceyes (but not balance)
GPS-based distance, time and paceYes
Cadence (provides real-time number of steps per minute)Yes
What You'll Love
Display typeMonochrome, sunlight-visible, transflective memory-in-pixel (MIP)
Water rating10 ATM
Pulse Ox blood oxygenYes
Sleep score and insightsYes
Battery life (smartwatch mode)Up to 16 days
Activity Profiles
GymStrength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing
SwimPool Swimming, Open Water Swimming
CyclingBiking, Road Biking, Mountain Biking, Gravel Biking, Bike Commuting, Bike Touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX
WellnessWalking, Pilates, Yoga
Team sportsBasketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball
On the WaterStand Up Paddleboarding, Rowing, Kayaking, Fishing, Boating, Whitewater
Racket sportsTennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball
Snow & winterSkiing, Snowboarding, XC Classic Skiing, XC Skate Skiing, Ice Skating, Snowshoeing
Indoor runningTreadmill Running, Indoor Track Running, Virtual Running
Outdoor runningRunning, Outdoor Track Running, Trail Running
Outdoor recreationHiking, Climbing, Hunting, Horseback Riding, Archery
Other activity profilesTactical
Swimming Features
Pool swim workoutsYes
Time and distance alertsYes
Auto rest (pool swim only)Yes
Drill logging (pool swim only)Yes
Countdown start (pool swim only)Yes
Underwater wrist-based heart rateYes
"Repeat on" rest timer (pool swim only)Yes
Basic rest timer (up from 0) (pool swim only)Yes
Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only)Yes
Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories)Yes
Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories)Yes
Tactical Features
XERO™ LocationsYes
Dual grid coordinatesYes
Outdoor Recreation
TidesYes
TracBack®Yes
Sight 'N GoYes
Tide glanceYes
Back to startYes
UltraTrac modeYes
Vertical speedYes
GPS coordinatesYes
Reference pointYes
Area calculationYes
Elevation profileYes
Projected waypointYes
Total ascent/descentYes
Future elevation plotYes
Distance to destinationYes
Expedition GPS ActivityYes
Sun and moon informationYes
Point-to-point navigationYes
Bread crumb trail in real timeYes
Barometric trend indicator with Storm AlertYes
Daily Smart Features
CalendarYes
PasscodeYes
ConnectivityBluetooth®, ANT+®
Garmin ShareYes
Find My PhoneYes
Find My WatchYes
VIRB® RemoteYes
Morning reportYes
Weather forecastsYes
Smart NotificationsYes
Smartphone compatibilityiPhone®, Android™
Controls smartphone musicYes
On-device Connect IQ™ StoreYes
Pairs with Garmin Connect™ MobileYes
Battery saver (customizable low power watch)Yes
Realtime settings sync with Garmin Connect™ mobileYes
Text response/reject phone call with text (Android™ only)Yes
Connect IQ™ (downloadable watch faces, data fields and apps)Yes
Activity Tracking Features
TrueUp™Yes
Move IQ™Yes
Step counterYes
Floors climbedYes
Calories burnedYes
Distance traveledYes
Intensity minutesYes
Automatic rep countingYes
Garmin Connect™ Challenges appyes (optional Connect IQ app)
Move alerts (displays on device after a period of inactivity)Yes
Auto goal (learns your activity level and assigns a daily step goal)Yes
Workout and Training Plans
HIIT workoutsYes
Yoga workoutsYes
Cardio workoutsYes
Pilates workoutsYes
Strength workoutsYes
Garmin Running Coach ExpertsYes
Garmin Coach - Prebuilt Cycling PlansYes
Daily Suggested Workout - Cycling (Pace and Heart Rate Based)Yes
Daily Suggested Workout - Running (Pace and Heart Rate Based)Yes
Health & Wellness Monitoring
Sleepyes (advanced)
Hydrationyes (in Garmin Connect™ and optional Connect IQ™ widget)
BreathworkYes
Fitness ageYes
Nap detectionYes
All-day stressYes
Women's healthyes (in Garmin Connect™ and optional Connect IQ™ widget)
Health snapshotYes
Respiration rateYes
Resting heart rateYes
Breathing variationsYes
Relaxation remindersYes
Abnormal heart rate alertsyes (high and low)
Relaxation breathing timerYes
Body Battery™ energy monitorYes
Wrist-based heart rate (constant, every second)Yes
Safety and Tracking Features
AssistanceYes
Live Event SharingYes
Incident Detection during select activitiesYes
Incident detection alert on phone for wearablesYes
Kid Activity Tracking Features
Toe-to-Toe™ Challenges appyes (optional Connect IQ Toe-to-Toe™ Challenges app)
Training, Planning and Analysis Features
% HRRYes
% HR maxYes
HR zonesYes
HR alertsYes
ShortcutsYes
HRV statusYes
Manual lapYes
Rest timerYes
Auto max HRYes
Auto scrollYes
Finish timeYes
HR caloriesYes
Voice alertsYes
Custom alertsYes
Physio TrueUpYes
Recovery timeYes
VO2 Max (Run)Yes
Course guidanceYes
Training effectYes
Virtual PartnerYes
Workout benefitYes
Race an ActivityYes
Advanced workoutsYes
Interval trainingYes
VO2 Max (Trail Run)Yes
GPS speed and distanceYes
Configurable lap alertsYes
Customizable data pagesYes
Touch and/or button lockYes
Activity history on watchYes
Downloadable training plansYes
Training effect (anaerobic)Yes
HRM running pace and distanceYes
Heat and altitude acclimationYes
Customizable activity profilesYes
Auto Pause® automatic timer haltYes
Respiration rate (during exercise)Yoga and Breathwork only
Auto Lap® interval tracking featureYes
Primary benefit (Training Effect labels)Yes
Power Modes - customizable in-activity battery settingsYes
HR broadcast (broadcasts HR data over ANT+® to paired devices)Yes
Design
width41
height41
volume20.17 cm³
weight40 g
thickness12
ATM rating5 ATM
resolution390 x 390 px
screen size1.2 inches
Display typeOLED/AMOLED
Has a displayYes
pixel density459 ppi
width of band18 mm
water resistanceWaterproof
Always-On DisplayYes
has a touch screenYes
is designed for kidsNo
Gorilla Glass versionGorilla Glass 3
waterproof depth rating50 m
Watch band is replaceableYes
Has sapphire glass displayNo
maximum operating temperature50 °C
has branded damage-resistant glassYes
lowest potential operating temperature-20 °C
Battery
charge time1 hours
battery life10 days
has wireless chargingNo
has a removable batteryNo
battery life with GPS on21 hours
Has a solar power batteryNo
has a rechargeable batteryYes
battery life in power save mode480 hours
Features
release date2023-08-30
Has a stopwatchYes
Has smart alarmNo
warranty period1 years
Has call controlYes
Has silent alarmYes
has HRV trackingYes
internal storage8GB
measures VO2 maxYes
Has notificationsYes
Has ECG technologyYes
Locates your phoneYes
has a front cameraNo
has fall detectionYes
has voice commandsNo
Acquires GPS fasterYes
Has vibrating alertsYes
shows readiness levelNo
Can be used to answer callsYes
measures resting heart rateYes
has irregular heart rate warningsYes
has fast/slow heart rate notificationsYes
Has a built-in camera remote control functionNo
Connectivity
has NFCYes
supports ANT+Yes
supports Wi-FiYes
supports GalileoYes
has a cellular moduleNo
Is compatible with iOSYes
Is compatible with AndroidYes
Miscellaneous
has aptXNo
Has auto pauseYes
Available on PCYes
Is compatible with WindowsYes
Is compatible with Mac OS XYes
has an external memory slotNo
Compatible with smart scalesYes
has a battery level indicatorYes
has a socket for a 3.5 mm audio jackNo
Compatible with external heart rate monitorsYes
App & Software
Ad-freeYes
Free appYes
Tracks BMIYes
Has coachingYes
Includes mapsYes
Supports routesYes
Has achievementsYes
Has goal settingYes
Has live trackingYes
Has exercise diaryYes
Predicts ovulationYes
Can be personalisedYes
Has weight trackingYes
Predicts start dateYes
Tracks water intakeYes
Has inactivity alertsYes
Has period notificationsYes
Has temperature trackingYes
Doesn’t require accountNo
Provides activity reportsYes
Displays fertile window notificationsYes
Counts how many calories you've burnedYes
Activity tracking
Measures paceYes
Tracks distanceYes
Tracks elevationYes
Designed for golfYes
Tracks your sleepYes
Tracks steps takenYes
Designed for divingNo
Has a route trackerYes
Has exercise taggingYes
Has multi-sport modeNo
Tracks calorie intakeYes
Provides sleep reportsYes
Detects activities automaticallyYes
Has a stroke counter for swimmingYes

Wrist Fit

Garmin Instinct® E – 45 mm

Sits best on wrists ~4764mm wide (≈ 12.617.1cm circumference).

Garmin Venu 3S

Sits best on wrists ~4359mm wide (≈ 11.515.8cm circumference).

2D Dimension Schematics

Accurate scale drawings based on case dimensions. Drag to pan, Ctrl+scroll to zoom. Works for every watch regardless of photo availability.

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Product Photos

Side-by-side product images at matched scale.

Garmin Instinct® E – 45 mm (010-02933-00)
Garmin Instinct® E – 45 mm (010-02933-00)
45mm × 45mm
Garmin Venu 3S
Garmin Venu 3S
41mm × 41mm

Frequently Asked Questions

Is the Garmin Instinct® E – 45 mm bigger than the Garmin Venu 3S?

The Garmin Instinct® E – 45 mm is bigger — 45mm vs 41mm case width.

Which fits a smaller wrist better, the Garmin Instinct® E – 45 mm or the Garmin Venu 3S?

The Garmin Instinct® E – 45 mm suits wrists around 47–64mm wide, and the Garmin Venu 3S around 43–59mm. The one with the smaller lower bound is the safer pick for a small wrist.

Can I see the Garmin Instinct® E – 45 mm and Garmin Venu 3S side by side at true scale?

Yes — the schematics and photos above show both watches at matched scale, and our fit tool overlays each on your wrist width.

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