WatchFitTool

Garmin Fenix 7 Pro Solar vs Garmin Instinct® 3 – 50 mm, AMOLED, Tactical EditionSize, Specs & Wrist Fit Compared

The Garmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition wears larger than the Garmin Fenix 7 Pro Solar (50mm vs 47mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.

On the wrist the Garmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition feels lighter (59g vs 79g, case only).

Specification Comparison

SpecGarminFenix 7 Pro SolarGarminInstinct® 3 – 50 mm, AMOLED, Tactical Edition
Case Width47mm50mm
Thickness14.5mm14.4mm
Weight79g59g
ShapeCircularCircular
Water Resistance10 ATM
GPS73 hoursYes
Battery Life22 daysSmartwatch: Up to 24 days (9 days always-on) Battery Saver Watch Mode: Up to 30 days GPS Only: Up to 40 hours All Satellite Systems: Up to 32 hours All Satellite Systems + Multi-Band: Up to 30 hours* Max Battery GPS: Up to 86 hours Expedition GPS: Up to 20 days *assuming typical use with SatIQ technology
Display1.3 inchesAMOLED (always-on)
Always-On DisplayYes
Released20232025

Full Specification Comparison

376 specs
SpecGarmin Fenix 7 Pro SolarGarmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition
Design
width47
height47
volume32.03 cm³
weight79 g
thickness14.5
ATM rating10 ATM
resolution260 x 260 px
screen size1.3 inches
Display typeLCD
Has a displayYes
pixel density282 ppi
width of band26 mm
water resistanceWaterproof
Always-On DisplayYes
has a touch screenYes
is designed for kidsNo
waterproof depth rating100 m
Watch band is replaceableYes
Has sapphire glass displayNo
has branded damage-resistant glassNo
Battery
battery life22 days
has wireless chargingNo
has a removable batteryNo
battery life with GPS on73 hours
Has a solar power batteryYes
has a rechargeable batteryYes
battery life in training mode10 hours
Sensors
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
GPSYes
CompassYes
GLONASSYes
GalileoYes
GyroscopeYes
ThermometerYes
AccelerometerYes
SatIQ™ TechnologyYes
Ambient light sensorYes
Barometric altimeterYes
Pulse Ox Blood Oxygen Saturation MonitorYes
Garmin Elevate™ wrist heart rate monitorYes
Features
release date2023-05-31
Has a stopwatchYes
Has smart alarmNo
warranty period1 years
Has call controlYes
Has silent alarmYes
has HRV trackingYes
internal storage32GB
measures VO2 maxYes
Has notificationsYes
Has ECG technologyYes
Locates your phoneYes
has fall detectionYes
has voice commandsNo
Acquires GPS fasterYes
Has vibrating alertsYes
shows readiness levelYes
Can be used to answer callsNo
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 auto pauseYes
Available on PCYes
Can upload mapsYes
Has trackback modeYes
Is compatible with WindowsYes
Is compatible with Mac OS XYes
has an external memory slotNo
Compatible with smart scalesYes
has a battery level indicatorYes
Provides the sunrise/sunset timeYes
has a socket for a 3.5 mm audio jackNo
Informs about the risk of thunderstormsYes
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 modeYes
Tracks calorie intakeYes
Provides sleep reportsYes
Detects activities automaticallyYes
Has a stroke counter for swimmingYes
Overview
FamilyGarmin
General
Battery lifeSmartwatch: Up to 24 days (9 days always-on) Battery Saver Watch Mode: Up to 30 days GPS Only: Up to 40 hours All Satellite Systems: Up to 32 hours All Satellite Systems + Multi-Band: Up to 30 hours* Max Battery GPS: Up to 86 hours Expedition GPS: Up to 20 days *assuming typical use with SatIQ technology
Battery typeLithium ion
Display Size1.3" (33 mm) diameter
Case materialfiber-reinforced polymer
Color displayYes
Lens MaterialChemically Strengthened Glass
Bezel Materialfiber-reinforced polymer/aluminum
Memory/History4 GB
Strap materialsilicone
Charging methodGarmin proprietary plug charger
Display resolution416 x 416 pixels
QuickFit® watch band compatibleyes (26 mm)
Product Info
Main SKU010-03020-50
Product ID1718241
Product NameInstinct® 3 – 50 mm, AMOLED, Tactical Edition
Release Date4/26/2025
Product VariationBlack with Black Band
Clock Features
TimerYes
StopwatchYes
Time/dateYes
Alarm clockYes
GPS Time SyncYes
Sunrise/sunset timesYes
Automatic daylight saving timeYes
Gaming Features
Gaming ActivityYes
GameOn™ app compatibleYes
Cycling Features
CoursesYes
MTB Grit & FlowYes
Race an activityYes
Power meter compatibleYes
Advanced cycling dynamicsYes
Compatible with Varia™ lightsYes
FTP (Functional Threshold Power)Yes
Speed and cadence sensor support (w/sensor)Yes
Bike lap and lap maximum power (with power sensor)Yes
Compatible with Varia™ radar (rear-facing radar)Yes
Compatible with Vector™ and Rally™ (power meters)Yes
Compatible with Varia Vision™ (head-mounted display)Yes
Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)Yes
Golfing Features
Tournament legalYes
Digital scorecardYes
Garmin AutoShot™Yes
Round timer/odometerYes
Auto CourseView updatesYes
Yardage to layups/doglegsYes
Hazards and course targetsYes
Pairs with Garmin Golf appYes
Green View with manual pin positionYes
CT10 Automatic club tracking compatible (requires accessory)Yes
Yardage to F/M/B (distance to front, middle and back of green)Yes
Stat tracking (strokes, putts per round, greens and fairways hit)Yes
Measures shot distance (calculates exact yardage for shots from anywhere on course)manual
Running Features
Run workoutsYes
Running powerYes
Race predictorYes
Foot pod capableYes
Running dynamicsYes
Lactate thresholdyes (with compatible accessory)
Grade-adjusted paceYes
Trail run auto climbYes
Performance conditionYes
Run/Walk/Stand detectionYes
Stride length (real time)Yes
PacePro™ Pacing StrategiesYes
Vertical oscillation and ratioYes
Ground contact time and balanceyes (GCT balance with accessory)
GPS-based distance, time and paceYes
Cadence (provides real-time number of steps per minute)Yes
What You'll Love
Display typeAMOLED (always-on)
Water rating10 ATM
Garmin Pay™Yes
LED flashlightYes
Multi-band GPSYes
Training statusYes
Training readinessYes
Pulse Ox blood oxygenYes
Sleep score and insightsYes
Battery life (smartwatch mode)Up to 24 days (9 days always-on)
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, Indoor Walking, Pilates, Yoga
MultisportTriathlon
In the ringBoxing, Mixed Martial Arts
Team sportsBasketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball
Motor sportsMotorcycling, Overlanding, Motocrossing, ATVing, Snowmobiling
On the WaterStand Up Paddleboarding, Rowing, Kayaking, Surfing, Kiteboarding, Windsurfing, Fishing, Boating, Water Skiing, Snorkeling, Wakeboarding, Wakesurfing, Tubing, Whitewater
Racket sportsTennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball
Snow & winterSkiing, Snowboarding, Backcountry Snowboarding, XC Classic Skiing, XC Skate Skiing, Backcountry Skiing, Ice Skating, Snowshoeing
Indoor runningTreadmill Running, Indoor Track Running, Virtual Running
Outdoor runningRunning, Outdoor Track Running, Trail Running, Obstacle Racing
Outdoor recreationHiking, Rucking, Indoor Climbing, Bouldering, Climbing, Hunting, Horseback Riding, Golfing, Disc Golf, Archery
Other activity profilesJumpmaster, Tactical, Inline Skating
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
Heart rate from external HRM (real-time during rests, interval and session stats during rests, and automatic heart rate download post-swim)Yes
Tactical Features
Kill switchYes
Stage timerYes
Stealth ModeYes
Ballistics solveryes (unlock required)
Night vision modeYes
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
Wind meter compatibleYes
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
Red shift modeYes
Weather forecastsYes
Smart NotificationsYes
Smart trainer controlYes
Smartphone compatibilityiPhone®, Android™
Controls smartphone musicYes
On-device Connect IQ™ StoreYes
Pairs with Garmin Connect™ MobileYes
Compatible with Garmin Messenger appYes
Battery saver (customizable low power watch)Yes
Realtime settings sync with Garmin Connect™ mobileYes
View images from notifications on watch (Android™ only)Yes
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
On-screen workout animationsYes
On-screen workout muscle mapsYes
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
Sleep coachYes
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
Load ratioYes
Manual lapYes
Rest timerYes
Auto max HRYes
Auto scrollYes
Finish timeYes
HR caloriesYes
Voice alertsYes
Custom alertsYes
Physio TrueUpYes
Recovery timeYes
Training loadYes
VO2 Max (Run)Yes
Course guidanceYes
Training effectYes
Virtual PartnerYes
Workout benefitYes
Race an ActivityYes
Advanced workoutsYes
Interval trainingYes
Race glance/widgetYes
Training load focusYes
VO2 Max (Trail Run)Yes
GPS speed and distanceYes
Improved recovery timeYes
Configurable lap alertsYes
Customizable data pagesYes
Unified training statusYes
Touch and/or button lockYes
Activity history on watchYes
Multisport auto transitionYes
Downloadable training plansYes
Training effect (anaerobic)Yes
Manual multisport activitiesYes
HRM running pace and distanceYes
Heat and altitude acclimationYes
Customizable activity profilesYes
Auto Pause® automatic timer haltYes
Respiration rate (during exercise)yes (with compatible accessory)
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
Improved interval (includes open repeats, intervals data page, rest screen and auto detection)Yes

Wrist Fit

Garmin Fenix 7 Pro Solar

Sits best on wrists ~4967mm wide (≈ 13.117.9cm circumference).

Garmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition

Sits best on wrists ~5371mm wide (≈ 14.219.0cm 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 Fenix 7 Pro Solar
Garmin Fenix 7 Pro Solar
47mm × 47mm
Garmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition (010-03020-50)
Garmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition (010-03020-50)
50mm × 50mm

Frequently Asked Questions

Is the Garmin Fenix 7 Pro Solar bigger than the Garmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition?

The Garmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition is bigger — 50mm vs 47mm case width.

Which fits a smaller wrist better, the Garmin Fenix 7 Pro Solar or the Garmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition?

The Garmin Fenix 7 Pro Solar suits wrists around 49–67mm wide, and the Garmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition around 53–71mm. The one with the smaller lower bound is the safer pick for a small wrist.

Can I see the Garmin Fenix 7 Pro Solar and Garmin Instinct® 3 – 50 mm, AMOLED, Tactical Edition 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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