fēnix® 3 HRSize, Dimensions & Wrist Fit
Case Width
51mm
Thickness
17.5mm
Diameter
51mm
Weight
86g
The Garmin fēnix® 3 HR sits best on flat wrist widths of about 54–73mm (≈ 14.4–19.5cm wrist circumference). Adjust the slider below to check your wrist.
Does the fēnix® 3 HR fit your wrist?
Drag the slider to your wrist width and see the fēnix® 3 HR overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
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Garmin fēnix® 3 HR Full Specifications
Overview1
FamilyGarmin
General10
Battery life
Smartwatch mode: Up to 2 weeksGPS mode: Up to 16 hoursUltraTrac™ mode: Up to 40 hours
Display Size1.2” (30.4 mm) diameter
Case materialfiber-reinforced polymer
Color displayYes
Lens Materialdomed sapphire crystal
Bezel Materialstainless steel
Memory/History32 MB
Strap materialsilicone
Display resolution218 x 218 pixels
QuickFit® watch band compatibleyes (26 mm)
Sensors7
GPSYes
CompassYes
GLONASSYes
ThermometerYes
AccelerometerYes
Barometric altimeterYes
Garmin Elevate™ wrist heart rate monitorYes
Product Info4
Main SKU010-01338-70
Product ID545480
Product Namefēnix® 3 HR
Product VariationSlate Gray with Black Band
Clock Features7
TimerYes
StopwatchYes
Time/dateYes
Alarm clockYes
GPS Time SyncYes
Sunrise/sunset timesYes
Automatic daylight saving timeYes
Cycling Features6
CoursesYes
Race an activityYes
Power meter compatibleYes
Bike lap and lap maximum power (with power sensor)Yes
Compatible with Vector™ and Rally™ (power meters)Yes
Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)Yes
Golfing Features4
Digital scorecardYes
Yardage to layups/doglegsYes
Yardage to F/M/B (distance to front, middle and back of green)Yes
Measures shot distance (calculates exact yardage for shots from anywhere on course)manual
Running Features12
Run workoutsYes
Race predictorYes
Foot pod capableYes
Running dynamicsYes
Lactate thresholdyes (with compatible accessory)
Trail run auto climbYes
Performance conditionYes
Stride length (real time)yes (with compatible accessory)
Vertical oscillation and ratioyes (with compatible accessory)
Ground contact time and balanceyes (with compatible accessory)
GPS-based distance, time and paceYes
Cadence (provides real-time number of steps per minute)Yes
Activity Profiles4
GymIndoor Rowing
SwimPool Swimming, Open Water Swimming
CyclingBiking, Indoor Biking
Outdoor recreation
Hiking, Climbing, Mountain Biking, Skiing, Snowboarding, XC Skiing, Stand Up Paddleboarding, Rowing, Jumpmaster, Tactical
Swimming Features8
Pool swim workoutsYes
Drill logging (pool swim only)Yes
"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 (with HRM-Tri™ and HRM-Swim™)
Tactical Features1
Dual grid coordinatesYes
Outdoor Recreation17
Tidesyes (via Connect IQ™)
TracBack®Yes
Sight 'N GoYes
Back to startYes
Fish forecastyes (via Connect IQ™)
UltraTrac modeYes
Vertical speedYes
GPS coordinatesYes
Area calculationyes (via Connect IQ™)
Elevation profileYes
Projected waypointYes
Total ascent/descentYes
Distance to destinationYes
Sun and moon informationyes (via Connect IQ™)
Point-to-point navigationYes
Bread crumb trail in real timeYes
Barometric trend indicator with Storm AlertYes
Daily Smart Features11
CalendarYes
ConnectivityBluetooth® Smart, ANT+®, Wi-Fi®
Find My PhoneYes
Find My WatchYes
VIRB® RemoteYes
Weather forecastsYes
Smart NotificationsYes
Smartphone compatibilityiPhone®, Android™
Controls smartphone musicYes
Pairs with Garmin Connect™ MobileYes
Connect IQ™ (downloadable watch faces, data fields and apps)Yes
Activity Tracking Features8
TrueUp™Yes
Step counterYes
Floors climbedYes
Calories burnedYes
Distance traveledYes
Intensity minutesYes
Move alerts (displays on device after a period of inactivity)Yes
Auto goal (learns your activity level and assigns a daily step goal)Yes
Health & Wellness Monitoring1
SleepYes
Training, Planning and Analysis Features32
% HRRYes
% HR maxYes
HR zonesYes
HR alertsYes
ShortcutsYes
Manual lapYes
Auto max HRYes
Auto scrollYes
Finish timeYes
HR caloriesYes
Voice alertsYes
Custom alertsYes
Recovery timeYes
VO2 Max (Run)Yes
Course guidanceYes
Training effectYes
Virtual PartnerYes
Race an ActivityYes
Advanced workoutsYes
Interval trainingYes
GPS speed and distanceYes
Configurable lap alertsYes
Customizable data pagesYes
Touch and/or button lockYes
Activity history on watchYes
Downloadable training plansYes
Manual multisport activitiesYes
Customizable activity profilesYes
Auto Pause® automatic timer haltYes
Auto Lap® interval tracking featureYes
HR broadcast (broadcasts HR data over ANT+® to paired devices)Yes
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)yes (with compatible accessory)
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fēnix® 3 HR — Frequently Asked Questions
What size is the Garmin fēnix® 3 HR?
The Garmin fēnix® 3 HR has a 51mm case and is 17.5mm thick.
Will the Garmin fēnix® 3 HR fit my wrist?
The Garmin fēnix® 3 HR looks balanced on flat wrist widths of roughly 54–73mm (about 14.4–19.5cm circumference). Use the interactive fit tool above to check against your own wrist.
How much does the Garmin fēnix® 3 HR weigh?
The Garmin fēnix® 3 HR weighs 86g (case only; straps add weight).
What is the best way to compare the Garmin fēnix® 3 HR with other watches?
Use our side-by-side comparison tool to see the Garmin fēnix® 3 HR next to any other watch — case size, thickness, lug-to-lug and full specs, scaled to real proportions.