Garmin · Adventure Watches
The Garmin fēnix® 8 – 51 mm, AMOLED in Slate Gray with Black Silicone Band is a premium multisport GPS smartwatch built for serious athletes and adventurers who want advanced training tools, strong navigation support, and everyday smartwatch convenience in a larger-wrist design.
Its bright 1.4” AMOLED display and long battery performance help keep data easy to read during training blocks and long outings, while features such as sport-specific strength workouts, built-in mapping, and multi-band GPS support confident planning and exploration. For daily use, the watch adds voice-focused convenience with a built-in speaker and microphone, plus an integrated LED flashlight for quick illumination when conditions change.
Display
A bright 1.4” AMOLED display with 454 x 454 pixels keeps training stats, maps, and workout prompts crisp at a glance. Battery life supports long stretches between charges with up to 29 days (13 days always-on) in smartwatch mode, plus dedicated GPS modes for extended tracking.
Connectivity
The built-in speaker and microphone enable phone calls when the watch is paired to a compatible smartphone. It also supports voice control with off-grid voice commands for watch functions, and can use a smartphone’s voice assistant to help respond to text messages and more.
Safety
An integrated LED flashlight provides variable light intensities plus a red safety light for better visibility in low light. A strobe mode can match running cadence, adding a practical tool for early starts, late finishes, and quick checks around camp or at the trailhead.
Durability
Designed to endure demanding use, the fēnix® 8 is dive-rated and built with leakproof buttons and a metal sensor guard cover. It’s tested to U.S. military standards for thermal, shock and water resistance, and it carries a 10 ATM water rating. The 51 x 51 x 14.7 mm case pairs with a silicone strap, and the watch supports QuickFit® watch band compatibility (Included (26 mm)).
Training
From wake-up to workout, the watch emphasizes usable guidance for performance and recovery. A customizable morning report summarizes key health and wellness information, while training readiness uses multiple health metrics to help balance effort and recovery. Training tools include daily suggested workouts that adapt after every run or ride, training status insights, and Garmin Coach training plans for running, cycling, and strength, with select plans adapting based on performance and health metrics.
Navigation
Navigation features support everything from local training loops to travel adventures. Dynamic round-trip routing lets the user choose a distance and receive suggested routes designed to guide them back on time. Terrain contours can be viewed on TopoActive maps, and preloaded maps include golf courses and ski resorts worldwide. Courses can be created or found in the Garmin Connect™ app or synced from third-party platforms to provide turn-by-turn directions.
| Part Number | 010-02905-00 |
|---|---|
| Model | fēnix® 8 – 51 mm, AMOLED |
| Configuration | Slate Gray with Black Silicone Band |
| Battery life (smartwatch mode) | Up to 29 days (13 days always-on) |
| Display type | AMOLED |
| Water rating | 10 ATM |
| Strap material | Silicone |
| Lens material | Corning® Gorilla® Glass or sapphire crystal |
| Bezel material | Stainless steel or titanium |
| Case material | Fiber-reinforced polymer with metal rear cover |
| QuickFit® watch band compatible | Included (26 mm) |
| Physical size | 51 x 51 x 14.7 mm; Fits wrists with the following circumference: Silicone band: 127-210 mm; UltraFit Band: 127-225 mm; Leather Band: 135-213 mm; Metal Band: 135-225 mm |
| Weight (Stainless Steel) | 102 g (case only: 74 g) |
| Weight (Titanium) | 92 g (case only: 64 g) |
| Display Size | 1.4” (35.56 mm) diameter |
| Display resolution | 454 x 454 pixels |
| Battery type | Lithium ion |
| Battery life (Battery Saver Watch Mode) | Up to 41 days |
| Battery life (GPS Only) | Up to 84 hours (65 hours always-on) |
| Battery life (All Satellite Systems) | Up to 68 hours (54 hours always-on) |
| Battery life (All Satellite Systems + Multi-band) | Up to 62 hours (49 hours always-on)* |
| Battery life (All Satellite Systems + Music) | Up to 18 hours |
| Battery life (Max Battery GPS) | Up to 145 hours |
| Battery life (Expedition GPS) | Up to 31 days |
| Battery life note | *Assuming typical use with SatIQ technology |
| Charging method | Garmin proprietary plug charger |
| Memory/History | 32 GB |
| fēnix 8 (51 mm, AMOLED) smartwatch |
| Charging/data cable |
| Documentation |
| Gym | Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Jump Roping |
|---|---|
| Multisport | Swimming/Running, Triathlon |
| Wellness | Walking, Pilates, Yoga, Indoor Walking, Mobility |
| Indoor running | Treadmill Running, Indoor Track Running, Virtual Running |
| Outdoor running | Running, Outdoor Track Running, Trail Running, Ultra Running, Obstacle Racing |
| Outdoor recreation | Hiking, Rucking, Indoor Climbing, Bouldering, Mountaineering, Hunting, Horseback Riding, Golfing, Disc Golf, Archery |
| Cycling | Biking, Road Biking, Mountain Biking, Gravel Biking, Bike Commuting, Bike Touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX |
| Swim | Pool Swimming, Open Water Swimming |
| On the water | Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Kiteboarding, Windsurfing, Fishing, Boating, Sailing, Water Skiing, Wakeboarding, Wakesurfing, Tubing, Snorkeling, Whitewater |
| Motor sports | Motorcycling, Overlanding, Motocrossing, ATVing, Snowmobiling |
| Racket sports | Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball |
| Snow and winter | Skiing, Snowboarding, Backcountry Snowboarding, XC Classic Skiing, XC Skate Skiing, Backcountry Skiing, Ice Skating, Snowshoeing |
| Team sports | Basketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball |
| In the ring | Boxing, Mixed Martial Arts |
| Dive | Scuba Diving (single gas), Apnea Diving |
| Other activity profiles | Inline Skating |
| What You'll Love | Sleep score and insights, Built-in mapping, Pulse Ox blood oxygen, Garmin ECG app, LED flashlight, Garmin Pay™, Multi-band GPS, Music storage, Make calls and send texts via voice, Training readiness and 2 more |
|---|---|
| General | Leakproof inductive buttons, Built-in speaker/microphone, Color display, Large font option |
| Clock Features | Time/date, GPS Time Sync, Automatic daylight saving time, Alarm clock, Smart wake alarm, Timer, Stopwatch, Sunrise/sunset times |
| Health & Wellness Monitoring | Heart rate (constant, every second), Resting heart rate, Respiration rate, Fitness age, Body Battery™ energy monitor, All-day stress, Relaxation breathing timer, Meditation, Breathwork, Sleep coach and 9 more |
| Sensors | GPS, GLONASS, Galileo, QZSS, BeiDou, SatIQ™ technology, Garmin Elevate™ wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass and 4 more |
| Daily Smart Features | Find My Phone, Find My Garmin (helps locate lost device), Find My Phone during GPS activity, Connect IQ™ (downloadable watch faces, data fields 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, Evening report and 17 more |
| Workout and Training Plans | Daily suggested workout - Running (pace and heart rate based), Daily suggested workout - Cycling (pace and heart rate based), Garmin running coach, Garmin running coach experts, Garmin cycling coach, Garmin Coach - Prebuilt cycling plans, Garmin Coach - Strength, Garmin triathlon coach, Multisport workouts, Cardio workouts and 6 more |
| Safety and Tracking Features | Incident detection during select activities, Incident detection alert on phone for wearables, Assistance, Live event sharing, Hands-free voice control |
| Tactical Features | Dual grid coordinates |
| Diving Features | Single-gas mode, APNEA mode, Nitrox support, Auto start/end dive, Dive ascent/descent rate indicator, Automatic altitude adjustment, No fly time, Tides, Automatically saves dive entry and exit locations, Sync dive log to Garmin Dive™ Mobile app and 1 more |
| Boating Features | Wearable trolling motor remote |
| Activity Tracking Features | Step counter, Move alerts (displays on device after a period of inactivity), Auto goal (learns your activity level and assigns a daily step goal), Calories burned, Floors climbed, Distance traveled, Intensity minutes, TrueUp™, Move IQ™, Automatic rep counting |
| Training, Planning and Analysis Features | Improved interval (includes open repeats, intervals data page, rest screen and auto detection), Customizable data pages, Downloadable training plans, Course guidance, HR zones, HR alerts, HR calories, % HR max, % HRR, Recovery time and 44 more |
| Running Features | GPS-based distance, time and pace, Running dynamics, Vertical oscillation and ratio, Stride length (real time), Cadence (provides real-time number of steps per minute), Running tolerance, Running power, Grade-adjusted pace, Performance condition, Lactate threshold and 10 more |
| Golfing Features | Preloaded with 43,000 courses worldwide, Yardage to F/M/B (distance to front, middle and back of green), Yardage to layups/doglegs, Digital scorecard, Custom targets, Stat tracking (strokes, putts per round, greens and fairways hit), Garmin AutoShot™, Full vector map, Auto CourseView updates, Green View with manual pin position and 15 more |
| Outdoor Recreation | Projected waypoint, UltraTrac mode, Elevation profile, Distance to destination, Barometric trend indicator with storm alert, Vertical speed, Total ascent/descent, Rest timer (ultra run only), Auto rest, Future elevation plot and 7 more |
| Mapping & Navigation | Point-to-point navigation, Bread crumb trail in real time, Back to start, TracBack®, Explore Nearby, Up Ahead, ClimbPro™ Ascent Planner, NextFork™ navigation, Preloaded ski resort maps, Downloadable cartography support |
| Cycling Features | Courses, Bike lap and lap maximum power (with power sensor), Race an activity, Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories), Power curve and % FTP workouts, Cycle Map (routable cycling-specific street map), MTB Grit & Flow, Advanced cycling dynamics, Compatible with Vector™ and Rally™ (power meters), Compatible with Varia™ radar (rear-facing radar) and 5 more |
| Swimming Features | 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, Pacing alerts (pool swim only), Countdown start (pool swim only) and 3 more |
| Abnormal heart rate alerts | Yes (high and low) |
|---|---|
| Sleep | Yes (advanced) |
| Hydration | Yes (in Garmin Connect™ and optional Connect IQ™ widget) |
| Women's health | Yes (in Garmin Connect™ and optional Connect IQ™ widget) |
| Connectivity | Bluetooth®, ANT+®, Wi-Fi® |
|---|---|
| Smartphone compatibility | IPhone®, Android™ |
| Dive activity maximum operating depth | 40 meters |
|---|---|
| Decompression model | Bühlmann ZHL-16c with Gradient Factors |
| Gas mixes | Air, Nitrox (21-40% Oxygen) |
| PO2 | Up to 1.6 with customizable Deco settings |
| Custom end-dive timeout | Yes (20 sec to 10 min) |
| Safety stop | Yes (customizable off/3min/5min) |
| Deep stops | Yes (using custom Gradient Factors) |
| Customizable conservatism | Yes (Low/Medium/High) |
| Dive planner | Yes (Basic NDL & Gas Planner) |
| Backlight | Yes (configurable intensity; always on) |
| Alerts and alarms | Yes (vibration only) |
| 3-axis dive compass | Yes with adjustable heading, quick change to 90R, 90L, and Reciprocal. Indicates degrees and direction back to set heading. |
| 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) |
|---|---|
| Respiration rate (during exercise) | Yes (with compatible accessory) |
When paired to your compatible smartphone
Activity tracking accuracy
TopoActive maps are available preloaded on fēnix 8 Sapphire models
The ECG app is only available on select Garmin smartwatches with the latest version of the Garmin Connect smartphone app and watch software. The ECG app is not available in all regions; see Garmin.com/ECG for availability. The ECG app is only intended for adults aged 22 years and over. The ECG app is capable of recording an ECG similar to a Lead I ECG and detecting the presence of atrial fibrillation or normal sinus rhythm.
This is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition; see Garmin.com/ataccuracy. Pulse Ox not available in all countries.
This is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition; see Garmin.com/ataccuracy. Breathing Variations not available in all countries.
Requires both the sender and receiver of messages to have the Garmin Messenger app installed on their paired smartphones
When paired with your compatible smartphone. For safety and tracking feature requirements and limitations, see Garmin.com/safety.
When paired with your compatible smartphone. All data provided on the Garmin Stocks Tracker app is provided for informational purposes only and is not intended for trading or investing purposes. See Twelvedata.com/stocks for stock exchanges covered by the Stocks app.
Requires a paired smartphone with the WhatsApp mobile app
Wi-Fi is a registered trademark of the Wi-Fi Alliance. iPhone is a trademark of Apple Inc., registered in the U.S. and other countries. Android is a trademark of Google LLC. SPOTIFY and the Spotify logo are among the registered trademarks of Spotify AB. Amazon Music and all related logos are trademarks of Amazon.com, Inc. or its affiliates.
