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CloseYou don’t just run. You’ve moved beyond that. Which is why you need Forerunner® 165 — the purpose-built GPS running smartwatch that helps you meet your goals with personalised adaptive training plans and a bright display to light up your progress.
What You'll Love |
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| Sleep Score and Insights | |
|---|---|
| Battery life (smartwatch mode) | Up to 11 days |
| Daily Suggested Workouts | Yes (7 days) |
| Pulse Ox Blood Oxygen Saturation | Yes (spot-check, during sleep, all day) |
| Garmin Pay™ | |
| Music storage | |
| Watch display type | AMOLED (optional always-on mode) |
| Touchscreen | |
| Water rating | 5 ATM |
General |
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| Strap material | Silicone |
| Lens material | Chemically strengthened glass |
| Bezel material | Fibre-reinforced polymer |
| Quick release bands | Yes (20 mm, Industry standard) |
| Physical size | 43 x 43 x 11.6 mm Fits wrists with a circumference of 126-203 mm |
| Weight | 39 g |
| Display Size | 30.4 mm (1.2") diameter |
| Display Resolution | 390x390 pixels |
| Colour display | |
| Large font option | |
| 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 GPS-Only GNSS mode with music: Up to 7 hours All-Systems GNSS mode with music: Up to 6.5 hours See details |
| Charging method | Garmin proprietary plug charger |
| Memory/history | 4 GB |
Clock features |
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| Time/date | |
| GPS time sync | |
| Automatic daylight saving time | |
| Alarm clock | |
| Timer | |
| Stopwatch | |
| Sunrise/sunset times | |
Health & Wellness Monitoring |
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| Wrist-based heart rate (constant, every second) | |
| Daily Resting Heart Rate | |
| Abnormal Heart Rate Alerts | Yes (high and low) |
| Respiration Rate (24x7) | |
| Fitness Age | |
| Body Battery™ Energy Monitor | |
| All-day Stress | |
| Relaxation reminders | |
| Relaxation Breathing Timer | |
| Breathwork | |
| Sleep | Yes (Advanced) |
| Nap detection | |
| Hydration | Yes (in Garmin Connect™ and optional Connect IQ™ widget) |
| Women's Health | Yes (in Garmin Connect™ and optional Connect IQ™ widget) |
| Health Snapshot | |
Sensors |
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| GPS | |
| GLONASS | |
| Galileo | |
| Garmin Elevate™ wrist heart rate monitor | |
| Pulse Ox Blood Oxygen Saturation Monitor | |
| Barometric altimeter | |
| Compass | |
| Accelerometer | |
| Thermometer | |
| Ambient light sensor | |
Daily smart features |
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| Connectivity | Bluetooth®, ANT+®, Wi-Fi® |
| Connect IQ™ (downloadable watch faces, data fields, widgets and apps) | |
| On-device Connect IQ™ Store | |
| Smart Notifications | |
| Text response/reject phone call with text (Android™ only) | |
| View images from notifications on watch (Android™ only) | |
| Morning report | |
| Calendar | |
| Weather forecasts | |
| Realtime settings sync with Garmin Connect™ mobile | |
| Battery Saver - customisable low power watch | |
| Controls smartphone music | |
| Plays and controls watch music | |
| Find my phone | |
| Find my watch | |
| Compatible with Garmin Connect™ Mobile | |
| Smartphone compatibility | iPhone®, Android™ |
Activity Profiles |
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| Gym | Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing |
| WELLNESS | Walking, Pilates, Yoga |
| INDOOR RUNNING | Treadmill Running, Indoor Track Running, Virtual running |
| Outdoor running | Running, Outdoor Track Running, Trail Running, Ultra Running |
| Outdoor recreation | Hiking |
| Cycling | Biking, Indoor Biking |
| Swim | Pool Swimming, Open Water Swimming |
| Racket sports | Tennis, Pickleball, Padel |
Safety and tracking features |
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| Incident Detection during select activities | |
| Incident detection alert on phone for wearables | |
| Assistance | |
| LiveTrack | |
| Live Event Sharing | Android™ Only |
Activity tracking features |
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| Step counter | |
| Move alerts (displays on device after a period of inactivity; walk for a couple of minutes to reset it) | |
| Auto goal (learns your activity level and assigns a daily step goal) | |
| Calories Burned | |
| Floors climbed | |
| Distance travelled | |
| Intensity minutes | |
| TrueUp™ | |
| Move IQ™ | |
| Garmin Connect™ Challenges app | Yes (optional Connect IQ app) |
Fitness equipment/gym |
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| Cardio workouts | |
| Strength workouts | |
| HIIT workouts | |
| Yoga workouts | |
| Pilates workouts | |
| Automatic rep counting | |
Training, planning and analysis features |
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| Customisable screen(s) | |
| Downloadable training plans | |
| Course guidance | |
| HR Zones | |
| HR Alerts | |
| HR Calories | |
| % HR Max | |
| % HRR | |
| Recovery Time | |
| Auto Max HR | |
| Race glance/widget | |
| HRV Status | |
| HR Broadcast (broadcasts HR data over ANT+® to paired devices) | |
| Respiration Rate (During Exercise) | Yoga and breathwork only |
| GPS speed and distance | |
| Customisable activity profiles | |
| Auto Pause® | |
| Interval training | |
| Advanced workouts | |
| HRM running pace and distance | |
| Auto Lap® | |
| Manual lap | |
| Rest timer | |
| Configurable lap alerts | |
| VO2 Max (Run) | |
| VO2 Max (Trail Run) | |
| Training Effect | |
| Training Effect (Anaerobic) | |
| Primary benefit (Training Effect labels) | |
| Audio prompts | |
| Finish time | |
| Touch and/or button lock | |
| Activity history on watch | |
| Physio TrueUp | |
Running features |
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| GPS-based distance, time and pace | |
| Running dynamics | |
| Vertical oscillation and ratio | |
| Ground contact time and balance | Yes (but not balance) |
| Stride length (real time) | |
| Cadence (provides real-time number of steps per minute) | |
| Running power | |
| PacePro™ Pacing Strategies | |
| Run workouts | |
| Race predictor | |
| Course- and weather-specific race predictor | |
| Foot pod capable | |
| Run/Walk/Stand detection | |
Outdoor recreation |
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| Point-to-point navigation | |
| Bread crumbtrail in real time | |
| Back to start | |
| TracBack® | |
| UltraTrac mode | |
| Elevation profile | |
| Distance to destination | |
| Total ascent/descent | |
| Rest Timer (Ultra Run only) | |
| Auto Rest | |
| Future elevation plot | |
| Area calculation | Yes (via Connect IQ™) |
| Fish forecast | Yes (via Connect IQ™) |
| Sun and moon information | Yes (via Connect IQ™) |
Cycling features |
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| Courses | |
| Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) | |
| Compatible with Varia™ radar (rear-facing radar) | |
| Compatible with Varia™ lights | |
| Speed and cadence sensor support (w/sensor) | |
Swimming features |
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| Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories) | |
| Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories) | |
| Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only) | |
| Drill logging (pool swim only) | |
| Basic rest timer (up from 0) (pool swim only) | |
| "Repeat on" rest timer (pool swim only) | |
| Auto rest (pool swim only) | |
| Time and distance alerts | |
| Countdown start | |
| Underwater wrist-based heart rate | |
Kid activity tracking features |
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| Toe-to-Toe™ Challenges app | Yes (optional Connect IQ Toe-to-Toe™ Challenges app) |
Security Information |
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| Security updates until at least (YYYY-MM-DD) | 2026-02-20 |