Garmin · 2024
Forerunner® 165Size, Dimensions & Wrist Fit
Case Width
43mm
Thickness
11.6mm
Diameter
43mm
Weight
39g
The Garmin Forerunner® 165 sits best on flat wrist widths of about 45–61mm (≈ 12.0–16.3cm wrist circumference). Adjust the slider below to check your wrist.
Does the Forerunner® 165 fit your wrist?
Drag the slider to your wrist width and see the Forerunner® 165 overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
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Garmin Forerunner® 165 Full Specifications
Overview1
FamilyGarmin
General12
Battery life
Smartwatch mode: Up to 11 days
Battery Saver Smartwatch mode: Up to 20 days
GPS-Only GNSS mode: Up to 19 hours
All-Systems GNSS mode: Up to 17 hours
See Details
Battery typeLithium ion
Display Size1.2" (30.4 mm) diameter
Color displayYes
Lens Materialchemically strengthened glass
Bezel Materialfiber-reinforced polymer
Memory/History4 GB
Strap materialsilicone
Charging methodGarmin proprietary plug charger
Large font optionYes
Display resolution390 x 390 pixels
Quick Release bandsyes (20 mm, Industry standard)
Sensors10
GPSYes
CompassYes
GLONASSYes
GalileoYes
ThermometerYes
AccelerometerYes
Ambient light sensorYes
Barometric altimeterYes
Pulse Ox Blood Oxygen Saturation MonitorYes
Garmin Elevate™ wrist heart rate monitorYes
Product Info5
Main SKU010-02863-20
Product ID1055469
Product NameForerunner® 165
Release Date2/20/2024
Product VariationBlack/Slate Gray
Clock Features7
TimerYes
StopwatchYes
Time/dateYes
Alarm clockYes
GPS Time SyncYes
Sunrise/sunset timesYes
Automatic daylight saving timeYes
Cycling Features6
CoursesYes
Compatible with Varia™ lightsYes
Compatible with Varia headlight cameraYes
Speed and cadence sensor support (w/sensor)Yes
Compatible with Varia™ radar (rear-facing radar)Yes
Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)Yes
Running Features13
Run workoutsYes
Running powerYes
Race predictorYes
Foot pod capableYes
Running dynamicsYes
Run/Walk/Stand detectionYes
Stride length (real time)Yes
PacePro™ Pacing StrategiesYes
Vertical oscillation and ratioYes
Ground contact time and balanceyes (but not balance)
GPS-based distance, time and paceYes
Course- and weather-specific race predictorYes
Cadence (provides real-time number of steps per minute)Yes
What You'll Love7
TouchscreenYes
Display typeAMOLED (optional always-on mode)
Water rating5 ATM
Garmin Pay™Yes
Pulse Ox blood oxygenyes (spot-check, during sleep, all day)
Sleep score and insightsYes
Battery life (smartwatch mode)Up to 11 days
Activity Profiles8
Gym
Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing
SwimPool Swimming, Open Water Swimming
CyclingBiking, Indoor Biking
WellnessWalking, Pilates, Yoga, Indoor Walking
Racket sportsTennis, Pickleball, Padel
Indoor running
Treadmill Running, Indoor Track Running, Virtual Running
Outdoor running
Running, Outdoor Track Running, Trail Running, Ultra Running
Outdoor recreationHiking
Swimming Features10
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
Outdoor Recreation14
Auto restYes
TracBack®Yes
Back to startYes
Fish forecastyes (via Connect IQ™)
UltraTrac modeYes
Area calculationyes (via Connect IQ™)
Elevation profileYes
Total ascent/descentYes
Future elevation plotYes
Distance to destinationYes
Sun and moon informationyes (via Connect IQ™)
Point-to-point navigationYes
Rest Timer (Ultra Run only)Yes
Bread crumb trail in real timeYes
Daily Smart Features21
CalendarYes
PasscodeYes
ConnectivityBluetooth®, ANT+®
Garmin ShareYes
Find My PhoneYes
Find My WatchYes
Morning reportYes
Red shift modeYes
Weather forecastsYes
Smart NotificationsYes
Smartphone compatibilityiPhone®, Android™
Controls smartphone musicYes
On-device Connect IQ™ StoreYes
Find My Phone during GPS activityYes
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 Features11
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 Plans9
HIIT workoutsYes
Yoga workoutsYes
Cardio workoutsYes
Pilates workoutsYes
Strength workoutsYes
Garmin Running Coachyes (no strength add-on)
Garmin Running Coach ExpertsYes
Garmin Coach - Prebuilt Cycling PlansYes
Daily Suggested Workout - Running (Pace and Heart Rate Based)Yes
Health & Wellness Monitoring16
Sleepyes (advanced)
Hydration
yes (in Garmin Connect™ and optional Connect IQ™ widget)
BreathworkYes
Fitness ageYes
Nap detectionYes
All-day stressYes
Women's health
yes (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 Features4
AssistanceYes
Live Event SharingAndroid™ Only
Incident Detection during select activitiesYes
Incident detection alert on phone for wearablesYes
Kid Activity Tracking Features1
Toe-to-Toe™ Challenges app
yes (optional Connect IQ Toe-to-Toe™ Challenges app)
Training, Planning and Analysis Features34
% HRRYes
% HR maxYes
HR zonesYes
HR alertsYes
HRV statusYes
Manual lapYes
Rest timerYes
Auto max HRYes
Finish timeYes
HR caloriesYes
Voice alertsYes
Physio TrueUpYes
Recovery timeYes
VO2 Max (Run)Yes
Course guidanceYes
Training effectYes
Advanced workoutsYes
Interval trainingYes
Race glance/widgetYes
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
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
HR broadcast (broadcasts HR data over ANT+® to paired devices)Yes
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Forerunner® 165 — Frequently Asked Questions
What size is the Garmin Forerunner® 165?
The Garmin Forerunner® 165 has a 43mm case and is 11.6mm thick.
Will the Garmin Forerunner® 165 fit my wrist?
The Garmin Forerunner® 165 looks balanced on flat wrist widths of roughly 45–61mm (about 12.0–16.3cm circumference). Use the interactive fit tool above to check against your own wrist.
How much does the Garmin Forerunner® 165 weigh?
The Garmin Forerunner® 165 weighs 39g (case only; straps add weight).
What is the best way to compare the Garmin Forerunner® 165 with other watches?
Use our side-by-side comparison tool to see the Garmin Forerunner® 165 next to any other watch — case size, thickness, lug-to-lug and full specs, scaled to real proportions.