Garmin · Adventure Watches
The Garmin fēnix® 8 – 43 mm, AMOLED in Sapphire, Carbon Gray DLC Titanium with Black/Pebble Gray Silicone Band is a premium multisport GPS smartwatch built for serious training, demanding adventures and smaller wrists.
It pairs a bright 1.3” AMOLED display with deep performance tools such as training readiness, endurance-focused metrics and sport-specific strength workouts. For daily use, it adds 24/7 health and wellness tracking, smart features, and a built-in LED flashlight. With a dive-rated design and multi-band GPS supported by SatIQ™ technology, it’s designed to stay ready for everything from structured workouts to navigation and recreational diving.
Connectivity
With a built-in speaker and microphone, the watch can make and take phone calls when paired to a smartphone. It also supports voice features, including off-grid voice commands for controlling watch functions, plus smartphone voice assistant support for actions such as replying to text messages.
Safety
A bright integrated LED flashlight helps improve awareness and visibility after dark. Variable light intensities include a red safety light, and the strobe mode can match running cadence, making it useful for early starts, late finishes, and quick tasks that need hands-on illumination.
Battery
In smartwatch mode, battery life is Up to 10 days (4 days always-on). When it’s time to extend runtime, Battery Saver Watch Mode delivers Up to 15 days. For GPS tracking, it supports modes up to Up to 49 hours in Max Battery GPS and Up to 10 days in Expedition GPS.
Durability
Built for tough conditions, the fēnix® 8 – 43 mm, AMOLED is tested to U.S. military standards for thermal, shock and water resistance. It’s dive-rated, includes leakproof buttons, and uses a metal sensor guard cover. This configuration features a Carbon Gray DLC Titanium build with a Black/Pebble Gray Silicone Band, combining durable materials with compact 43 x 43 x 13.8 mm sizing for smaller wrists.
Training
From daily structure to race-day strategy, the watch supports advanced training and performance tools. Training readiness, training status and performance metrics help guide effort and recovery. Garmin Coach offers adaptive or prebuilt running, cycling and strength training plans, and daily suggested workouts adjust after every run or ride. It also supports features like PacePro™ technology, ClimbPro™ and a race widget to help plan and execute events.
Navigation
For navigation, the watch supports built-in mapping and multi-band GPS aided by SatIQ™ technology for positioning accuracy while optimizing battery life. Multicontinent TopoActive maps help keep exploration on track, with additional map downloads via Wi-Fi® connectivity. Dynamic round-trip routing can suggest routes based on how far to go and guide the return. NextFork™ navigation and Up Ahead deliver at-a-glance trail and checkpoint awareness during the outing or race.
Health
The fēnix® 8 provides 24/7 health and wellness features, including wrist-based heart rate, HRV status and Pulse Ox sensor tracking while awake or asleep. Morning report and evening report summarize key information to help plan the day and prepare for tomorrow. Sleep tools include Sleep Coach, sleep stages, nap detection and breathing variations, while lifestyle logging in the Garmin Connect™ app helps track habits such as caffeine and alcohol to view related reports.
| Part Number | 010-02903-20 |
|---|---|
| Model | fēnix® 8 – 43 mm, AMOLED |
| Configuration | Sapphire, Carbon Gray DLC Titanium with Black/Pebble Gray Silicone Band |
| Battery life (smartwatch mode) | Up to 10 days (4 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 (20 mm) |
| Physical size | 43 x 43 x 13.8 mm; Fits wrists with the following circumference: Silicone band: 108-182 mm; UltraFit Band: 108-189 mm; Suede Band: 108-175 mm; Metal Band: 108-180 mm |
| Weight (Stainless Steel) | 66 g (case only: 50 g) |
| Weight (Titanium) | 60 g (case only: 44 g) |
| Display Size | 1.3” (33.00 mm) diameter |
| Display resolution | 416 x 416 pixels |
| Battery type | Lithium ion |
| Battery life (Battery Saver Watch Mode) | Up to 15 days |
| Battery life (GPS Only) | Up to 28 hours (22 hours always-on) |
| Battery life (All Satellite Systems) | Up to 23 hours (18 hours always-on) |
| Battery life (All Satellite Systems + Multi-band) | Up to 21 hours (16 hours always-on)* |
| Battery life (All Satellite Systems + Music) | Up to 6 hours |
| Battery life (Max Battery GPS) | Up to 49 hours |
| Battery life (Expedition GPS) | Up to 10 days |
| Battery life note | *Assuming typical use with SatIQ technology |
| Charging method | Garmin proprietary plug charger |
| Memory/History | 32 GB |
| fēnix 8 (43 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.
The menstrual cycle tracking feature should not be used in support of conception, contraception or birth control. This is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition.
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
Compatible Garmin smartwatches are consumer wellness devices and are not medical devices intended to diagnose, treat, prevent or monitor medical conditions. The Natural Cycles app independently determines fertility status based on skin temperature and other data.
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.
