Garmin Forerunner® 920XT vs Garmin Instinct® 3 – 45 mm, AMOLEDSize, Specs & Wrist Fit Compared
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Garmin
Forerunner® 920XT (010-01174-00)
Garmin
Instinct® 3 – 45 mm, AMOLED (010-02936-00)
The Garmin Forerunner® 920XT and Garmin Instinct® 3 – 45 mm, AMOLED share a near-identical 45mm case, so wrist presence comes down to thickness, lug-to-lug and weight.
The Garmin Forerunner® 920XT is the slimmer of the two (12.7mm vs 14.9mm), so it slides under a cuff more easily.
On the wrist the Garmin Instinct® 3 – 45 mm, AMOLED feels lighter (53g vs 61g, case only).
Specification Comparison
| Spec | GarminForerunner® 920XT | GarminInstinct® 3 – 45 mm, AMOLED |
|---|---|---|
| Case Width | 45mm | 45mm |
| Lug-to-Lug | 55mm | 45mm |
| Thickness | 12.7mm | 14.9mm |
| Weight | 61g | 53g |
| Shape | Rectangle | Circular |
| GPS | Yes | Yes |
| Battery Life | GPS mode: Up to 24 hoursUltraTrac™ mode: Up to 40 hours | Smartwatch: Up to 18 days (7 days always-on) Battery Saver Watch Mode: Up to 24 days GPS Only: Up to 32 hours All Satellite Systems: Up to 25 hours All Satellite Systems + Multi-Band: Up to 23 hours* Max Battery GPS: Up to 68 hours Expedition GPS: Up to 16 days *Assuming typical use with SatIQ technology |
| Display | — | AMOLED (always-on) |
| Released | 2014 | 2025 |
Full Specification Comparison
259 specs| Spec | Garmin Forerunner® 920XT | Garmin Instinct® 3 – 45 mm, AMOLED |
|---|---|---|
| Overview | ||
| Family | Garmin | Garmin |
| General | ||
| Battery life | GPS mode: Up to 24 hoursUltraTrac™ mode: Up to 40 hours | Smartwatch: Up to 18 days (7 days always-on) Battery Saver Watch Mode: Up to 24 days GPS Only: Up to 32 hours All Satellite Systems: Up to 25 hours All Satellite Systems + Multi-Band: Up to 23 hours* Max Battery GPS: Up to 68 hours Expedition GPS: Up to 16 days *Assuming typical use with SatIQ technology |
| Display Size | 1.1" x 0.8" (29.0 x 21.0 mm) | 1.2" (30 mm) diameter |
| Color display | Yes | Yes |
| Lens Material | chemically strengthened glass | Chemically Strengthened Glass |
| Memory/History | 32 MB | 4 GB |
| Strap material | TPU | silicone |
| Display resolution | 205 x 148 pixels | 390 x 390 pixels |
| Battery type | — | Lithium ion |
| Case material | — | fiber-reinforced polymer |
| Bezel Material | — | fiber-reinforced polymer/aluminum |
| Charging method | — | Garmin proprietary plug charger |
| Large font option | — | Yes |
| QuickFit® watch band compatible | — | yes (22 mm) |
| Sensors | ||
| GPS | Yes | Yes |
| Compass | Yes | Yes |
| GLONASS | Yes | Yes |
| Accelerometer | Yes | Yes |
| Barometric altimeter | Yes | Yes |
| Galileo | — | Yes |
| Gyroscope | — | Yes |
| Thermometer | — | Yes |
| SatIQ™ Technology | — | Yes |
| Pulse Ox Blood Oxygen Saturation Monitor | — | Yes |
| Garmin Elevate™ wrist heart rate monitor | — | Yes |
| Product Info | ||
| Main SKU | 010-01174-00 | 010-02936-00 |
| Product ID | 137024 | 1316397 |
| Product Name | Forerunner® 920XT | Instinct® 3 – 45 mm, AMOLED |
| Release Date | 10/1/2014 | 1/6/2025 |
| Product Variation | Black/Blue Watch Only | Black with Black Band |
| Clock Features | ||
| Stopwatch | Yes | Yes |
| Time/date | Yes | Yes |
| Alarm clock | Yes | Yes |
| GPS Time Sync | Yes | Yes |
| Sunrise/sunset times | Yes | Yes |
| Automatic daylight saving time | Yes | Yes |
| Timer | — | Yes |
| Cycling Features | ||
| Courses | Yes | Yes |
| Race an activity | Yes | Yes |
| Power meter compatible | Yes | Yes |
| Advanced cycling dynamics | Yes | Yes |
| FTP (Functional Threshold Power) | yes (with compatible accessory) | Yes |
| Bike lap and lap maximum power (with power sensor) | Yes | Yes |
| Compatible with Vector™ and Rally™ (power meters) | Yes | Yes |
| Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) | Yes | Yes |
| MTB Grit & Flow | — | Yes |
| Compatible with Varia™ lights | — | Yes |
| Speed and cadence sensor support (w/sensor) | — | Yes |
| Compatible with Varia™ radar (rear-facing radar) | — | Yes |
| Compatible with Varia Vision™ (head-mounted display) | — | Yes |
| Running Features | ||
| Run workouts | Yes | Yes |
| Race predictor | Yes | Yes |
| Foot pod capable | Yes | Yes |
| Running dynamics | yes (with compatible accessory) | Yes |
| Vertical oscillation and ratio | yes (but not ratio) | Yes |
| Ground contact time and balance | yes (but not balance) | yes (GCT balance with accessory) |
| GPS-based distance, time and pace | Yes | Yes |
| Cadence (provides real-time number of steps per minute) | Yes | Yes |
| Running power | — | Yes |
| Lactate threshold | — | yes (with compatible accessory) |
| Grade-adjusted pace | — | Yes |
| Trail run auto climb | — | Yes |
| Performance condition | — | Yes |
| Run/Walk/Stand detection | — | Yes |
| Stride length (real time) | — | Yes |
| PacePro™ Pacing Strategies | — | Yes |
| Activity Profiles | ||
| Swim | Pool Swimming, Open Water Swimming | Pool Swimming, Open Water Swimming |
| Cycling | Yes | Biking, Road Biking, Mountain Biking, Gravel Biking, Bike Commuting, Bike Touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX |
| Outdoor recreation | Yes | Hiking, Rucking, Indoor Climbing, Bouldering, Climbing, Hunting, Horseback Riding, Golfing, Disc Golf, Archery |
| Gym | — | Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing |
| Wellness | — | Walking, Indoor Walking, Pilates, Yoga |
| Multisport | — | Triathlon |
| In the ring | — | Boxing, Mixed Martial Arts |
| Team sports | — | Basketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball |
| Motor sports | — | Motorcycling, Overlanding, Motocrossing, ATVing, Snowmobiling |
| On the Water | — | Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Kiteboarding, Windsurfing, Fishing, Boating, Water Skiing, Snorkeling, Wakeboarding, Wakesurfing, Tubing, Whitewater |
| Racket sports | — | Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball |
| Snow & winter | — | Skiing, Snowboarding, Backcountry Snowboarding, XC Classic Skiing, XC Skate Skiing, Backcountry Skiing, Ice Skating, Snowshoeing |
| Indoor running | — | Treadmill Running, Indoor Track Running, Virtual Running |
| Outdoor running | — | Running, Outdoor Track Running, Trail Running, Obstacle Racing |
| Other activity profiles | — | Tactical, Inline Skating |
| Swimming Features | ||
| Pool swim workouts | Yes | Yes |
| Drill logging (pool swim only) | Yes | Yes |
| "Repeat on" rest timer (pool swim only) | Yes | Yes |
| Basic rest timer (up from 0) (pool swim only) | Yes | Yes |
| Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only) | Yes | Yes |
| Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories) | Yes | Yes |
| Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories) | Yes | 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™) | Yes |
| Time and distance alerts | — | Yes |
| Auto rest (pool swim only) | — | Yes |
| Countdown start (pool swim only) | — | Yes |
| Underwater wrist-based heart rate | — | Yes |
| Outdoor Recreation | ||
| Back to start | Yes | Yes |
| UltraTrac mode | Yes | Yes |
| GPS coordinates | yes (at least for Where Am I) | Yes |
| Distance to destination | Yes | Yes |
| Point-to-point navigation | Yes | Yes |
| Bread crumb trail in real time | Yes | Yes |
| Tides | — | Yes |
| TracBack® | — | Yes |
| Sight 'N Go | — | Yes |
| Tide glance | — | Yes |
| Vertical speed | — | Yes |
| Reference point | — | Yes |
| Area calculation | — | Yes |
| Elevation profile | — | Yes |
| Projected waypoint | — | Yes |
| Total ascent/descent | — | Yes |
| Future elevation plot | — | Yes |
| Expedition GPS Activity | — | Yes |
| Sun and moon information | — | Yes |
| Barometric trend indicator with Storm Alert | — | Yes |
| Daily Smart Features | ||
| Connectivity | Yes | Bluetooth®, ANT+® |
| VIRB® Remote | Yes | Yes |
| Smart Notifications | Yes | Yes |
| Smartphone compatibility | iPhone®, Android™ | iPhone®, Android™ |
| Pairs with Garmin Connect™ Mobile | Yes | Yes |
| Connect IQ™ (downloadable watch faces, data fields, widgets and apps) | Yes | — |
| Calendar | — | Yes |
| Passcode | — | Yes |
| Garmin Share | — | Yes |
| Find My Phone | — | Yes |
| Find My Watch | — | Yes |
| Morning report | — | Yes |
| Red shift mode | — | Yes |
| Weather forecasts | — | Yes |
| Smart trainer control | — | Yes |
| Controls smartphone music | — | Yes |
| On-device Connect IQ™ Store | — | Yes |
| Compatible with Garmin Messenger app | — | Yes |
| Battery saver (customizable low power watch) | — | Yes |
| Realtime settings sync with Garmin Connect™ mobile | — | Yes |
| 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 | ||
| Step counter | Yes | Yes |
| Calories burned | Yes | Yes |
| Distance traveled | Yes | Yes |
| Move alerts (displays on device after a period of inactivity) | Yes | Yes |
| Auto goal (learns your activity level and assigns a daily step goal) | Yes | Yes |
| TrueUp™ | — | Yes |
| Move IQ™ | — | Yes |
| Floors climbed | — | Yes |
| Intensity minutes | — | Yes |
| Automatic rep counting | — | Yes |
| Garmin Connect™ Challenges app | — | yes (optional Connect IQ app) |
| Health & Wellness Monitoring | ||
| Sleep | Yes | yes (advanced) |
| Hydration | — | yes (in Garmin Connect™ and optional Connect IQ™ widget) |
| Breathwork | — | Yes |
| Fitness age | — | Yes |
| Sleep coach | — | Yes |
| Nap detection | — | Yes |
| All-day stress | — | Yes |
| Women's health | — | yes (in Garmin Connect™ and optional Connect IQ™ widget) |
| Health snapshot | — | Yes |
| Respiration rate | — | Yes |
| Resting heart rate | — | Yes |
| Breathing variations | — | Yes |
| Relaxation reminders | — | Yes |
| Abnormal heart rate alerts | — | yes (high and low) |
| Relaxation breathing timer | — | Yes |
| Body Battery™ energy monitor | — | Yes |
| Wrist-based heart rate (constant, every second) | — | Yes |
| Safety and Tracking Features | ||
| LiveTrack | Yes | — |
| Assistance | — | Yes |
| Live Event Sharing | — | Yes |
| Incident Detection during select activities | — | Yes |
| Incident detection alert on phone for wearables | — | Yes |
| Training, Planning and Analysis Features | ||
| % HRR | yes (with compatible accessory) | Yes |
| % HR max | yes (with compatible accessory) | Yes |
| HR zones | yes (with compatible accessory) | Yes |
| HR alerts | yes (with compatible accessory) | Yes |
| Manual lap | Yes | Yes |
| Auto max HR | yes (with compatible accessory) | Yes |
| Auto scroll | Yes | Yes |
| Finish time | Yes | Yes |
| HR calories | yes (with compatible accessory) | Yes |
| Custom alerts | Yes | Yes |
| Recovery time | yes (with compatible accessory) | Yes |
| VO2 Max (Run) | Yes | Yes |
| Course guidance | Yes | Yes |
| Training effect | Yes | Yes |
| Virtual Partner | Yes | Yes |
| Race an Activity | Yes | Yes |
| Advanced workouts | Yes | Yes |
| Interval training | Yes | Yes |
| Strava Live Segments | yes (Live Segments Only) | — |
| GPS speed and distance | Yes | Yes |
| Configurable lap alerts | Yes | Yes |
| Customizable data pages | Yes | Yes |
| Touch and/or button lock | Yes | Yes |
| Activity history on watch | Yes | Yes |
| Auto multisport activities | Yes | — |
| Downloadable training plans | Yes | Yes |
| Manual multisport activities | Yes | Yes |
| Customizable activity profiles | Yes | Yes |
| Auto Pause® automatic timer halt | Yes | Yes |
| Auto Lap® interval tracking feature | Yes | Yes |
| Shortcuts | — | Yes |
| HRV status | — | Yes |
| Load ratio | — | Yes |
| Rest timer | — | Yes |
| Voice alerts | — | Yes |
| Physio TrueUp | — | Yes |
| Training load | — | Yes |
| Workout benefit | — | Yes |
| Race glance/widget | — | Yes |
| Training load focus | — | Yes |
| VO2 Max (Trail Run) | — | Yes |
| Unified training status | — | Yes |
| Multisport auto transition | — | Yes |
| Training effect (anaerobic) | — | Yes |
| HRM running pace and distance | — | Yes |
| Heat and altitude acclimation | — | Yes |
| Respiration rate (during exercise) | — | yes (with compatible accessory) |
| Primary benefit (Training Effect labels) | — | Yes |
| Power Modes - customizable in-activity battery settings | — | Yes |
| 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 |
| Gaming Features | ||
| Gaming Activity | — | Yes |
| GameOn™ app compatible | — | Yes |
| Golfing Features | ||
| Tournament legal | — | Yes |
| Digital scorecard | — | Yes |
| Garmin AutoShot™ | — | Yes |
| Round timer/odometer | — | Yes |
| Auto CourseView updates | — | Yes |
| Yardage to layups/doglegs | — | Yes |
| Hazards and course targets | — | Yes |
| Pairs with Garmin Golf app | — | Yes |
| Green View with manual pin position | — | Yes |
| 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 |
| What You'll Love | ||
| Display type | — | AMOLED (always-on) |
| Water rating | — | 10 ATM |
| Garmin Pay™ | — | Yes |
| LED flashlight | — | Yes |
| Multi-band GPS | — | Yes |
| Training status | — | Yes |
| Training readiness | — | Yes |
| Pulse Ox blood oxygen | — | Yes |
| Sleep score and insights | — | Yes |
| Battery life (smartwatch mode) | — | Up to 18 days (7 days always-on) |
| Tactical Features | ||
| XERO™ Locations | — | Yes |
| Dual grid coordinates | — | Yes |
| Workout and Training Plans | ||
| HIIT workouts | — | Yes |
| Yoga workouts | — | Yes |
| Cardio workouts | — | Yes |
| Pilates workouts | — | Yes |
| Strength workouts | — | Yes |
| Garmin Running Coach Experts | — | Yes |
| On-screen workout animations | — | Yes |
| On-screen workout muscle maps | — | Yes |
| Garmin Coach - Prebuilt Cycling Plans | — | Yes |
| Daily Suggested Workout - Cycling (Pace and Heart Rate Based) | — | Yes |
| Daily Suggested Workout - Running (Pace and Heart Rate Based) | — | Yes |
| Kid Activity Tracking Features | ||
| Toe-to-Toe™ Challenges app | — | yes (optional Connect IQ Toe-to-Toe™ Challenges app) |
Wrist Fit
Garmin Forerunner® 920XT
Sits best on wrists ~58–79mm wide (≈ 15.5–21.1cm circumference).
Garmin Instinct® 3 – 45 mm, AMOLED
Sits best on wrists ~47–64mm wide (≈ 12.6–17.1cm 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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Frequently Asked Questions
Is the Garmin Forerunner® 920XT bigger than the Garmin Instinct® 3 – 45 mm, AMOLED?
Both have a 45mm case. Compare their thickness and lug-to-lug above to judge wrist presence.
Which fits a smaller wrist better, the Garmin Forerunner® 920XT or the Garmin Instinct® 3 – 45 mm, AMOLED?
The Garmin Forerunner® 920XT suits wrists around 58–79mm wide, and the Garmin Instinct® 3 – 45 mm, AMOLED around 47–64mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Garmin Forerunner® 920XT and Garmin Instinct® 3 – 45 mm, AMOLED 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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