Garmin · Adventure Watches
The Garmin fēnix® 8 – 51 mm, AMOLED in Sapphire, Carbon Gray DLC Titanium with Black/Pebble Gray Silicone Band is a premium multisport GPS smartwatch built for serious training and demanding adventures. Its bright 1.4” AMOLED display and rugged design support everything from daily workouts to outdoor navigation and recreational diving.
With up to 29 days of battery life in smartwatch mode, built-in mapping, and multi-band GPS with SatIQ™ technology, it’s designed for long weeks on the wrist and confident positioning on the move. Added features like a built-in LED flashlight and a built-in speaker and microphone help round out an all-in-one watch for athletes and explorers who want performance, tools, and everyday smartwatch convenience in a larger 51 mm size.
Display
A bright 1.4” (35.56 mm) AMOLED screen with 454 x 454 pixels helps keep metrics, maps, and workout screens easy to read at a glance. Touchscreen support, color display, and a large font option add convenience for training, navigation, and daily use.
Connectivity
The built-in speaker and microphone enable Bluetooth phone calling and voice assistant support when the watch is paired to a compatible smartphone. It can also use voice command for hands-free control of watch functions, bringing quick access to key tools while on the move.
Training
A built-in LED flashlight provides practical illumination with variable light intensities plus a red safety light. A strobe mode can match running cadence, helping improve visibility and awareness when training or navigating in low-light conditions.
Durability
Designed to endure, this fēnix® 8 is dive-rated and built with leakproof inductive 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. Diving support includes scuba diving (single gas) and apnea diving, plus a depth sensor rated to 40 m and a decompression model of Bühlmann ZHL-16c with Gradient Factors.
Training
For athletes building fitness or preparing for events, the watch supports Garmin Coach adaptive or prebuilt plans for running, cycling or strength training. It also offers daily suggested workouts that adjust after every run or ride, plus training readiness, training status, endurance score, and recovery time to help balance effort and rest. Sport-specific strength workouts and on-screen workout animations support structured sessions directly from the wrist.
Navigation
Built-in mapping and navigation features help guide workouts and adventures. Dynamic round-trip routing can suggest routes based on how far the user wants to go and guide them back, while turn-by-turn directions are available when courses are created or found in the Garmin Connect™ smart-device app or synced from third-party platforms. Multicontinent TopoActive maps support global exploration, and additional maps can be downloaded via Wi-Fi® connectivity.
Battery
This configuration is built for extended wear between charges, delivering up to 29 days (13 days always-on) in smartwatch mode and up to 41 days in Battery Saver Watch Mode. For GPS tracking, it offers up to 84 hours (65 hours always-on) in GPS Only, and up to 62 hours (49 hours always-on)* in All Satellite Systems + Multi-band. Charging is handled through a Garmin proprietary plug charger, and memory/storage is 32 GB.
| Part Number | 010-02905-20 |
|---|---|
| Model | fēnix® 8 – 51 mm, AMOLED |
| Configuration | Sapphire, Carbon Gray DLC Titanium with Black/Pebble Gray 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.
