Garmin · 2024
fēnix® 8 – 43 mm, AMOLEDSize, Dimensions & Wrist Fit
The Garmin fēnix® 8 – 43 mm, AMOLED sits best on flat wrist widths of about 45–61mm (≈ 12.0–16.3cm wrist circumference). Adjust the slider below to check your wrist.
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The fēnix® 8 – 43 mm, AMOLED in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Between 6 hours and 15 days per charge depending on the power mode — battery saver at best, all satellite systems + music at worst.
- Water rated to 10 ATM.
- 66g on the wrist. Heavier than 95% of the 43mm watches we have weights for.
- 1.3” (33.00 mm) diameter AMOLED display.
- Takes 20mm bands, so third-party straps fit without an adapter.
Does the fēnix® 8 – 43 mm, AMOLED fit your wrist?
Drag the slider to your wrist width and see the fēnix® 8 – 43 mm, AMOLED overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
Happy with the fit? Check current availability for the fēnix® 8 – 43 mm, AMOLED.
Check offer2D Dimension Schematics
The fēnix® 8 – 43 mm, AMOLED drawn to scale — from above, and in profile against the wrist.
- Garmin fēnix® 8 – 43 mm, AMOLED43mm · 13.8mm thick
3D preview
Garmin fēnix® 8 – 43 mm, AMOLED on a wrist
On an arm sized to your own wrist — the view a product photo never gives you.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
Which fēnix 8 size fits you?
This model comes in 5 versions. Set your measurement and each one reports its own verdict — tap any size to open its page.
Which of these fits your wrist?
Roughly a 14.7cm wrist circumference — the measurement a tape gives you. Compared against lug-to-lug where we have it, case width otherwise.
All 5 fēnix 8 variants fit this wrist. The 51mm · AMOLED gives you the most presence without overhanging; the smallest is the discreet end of the range.
- Width
- 43mm
- Thick
- 13.8mm
- Weight
- 66g
6.0mm clear a side
- Width
- 47mm
- Thick
- 13.8mm
- Weight
- 80g
4.0mm clear a side
View this size- Width
- 47mm
- Thick
- 15.2mm
- Weight
- 80g
4.0mm clear a side
View this size- Width
- 51mm
- Thick
- 14.7mm
- Weight
- 102g
2.0mm clear a side
View this size- Width
- 51mm
- Thick
- 15.4mm
- Weight
- 95g
2.0mm clear a side
View this sizeHow long the fēnix® 8 – 43 mm, AMOLED lasts, by power mode
Runtime changes by a factor of 60 depending on what you leave switched on. Bars are scaled against the longest mode.
always-on displayraise-to-wake
- Battery Saver15 days
- Smartwatch10 days · 4 days always-on
- Expedition GPS10 days
- Max Battery GPS49 hours
- GPS Only28 hours · 22 hours always-on
- All Satellite Systems23 hours · 18 hours always-on
- All Satellite Systems + Multi-band21 hours · 16 hours always-on
- All Satellite Systems + Music6 hours
- * Assuming typical use with SatIQ technology
How the fēnix® 8 – 43 mm, AMOLED ranks on battery
Against the 268 Garmin watches in our database, ranked on each figure Garmin publishes.
- Everyday use10 days#179 of 257
- GPS tracking28 hours#103 of 233
- Power save15 days#96 of 106
What size band does the fēnix® 8 – 43 mm, AMOLED take?
Lug width
20mm
Any 20mm strap fits, so you are not restricted to Garmin's own bands. Quick-release pins let you swap without tools — check that a replacement lists 20mm and quick-release before buying.
Affiliate disclosure: As an Amazon Associate, WatchFitTool earns from qualifying purchases. If you buy through links on this page, we may earn a commission at no extra cost to you. Learn more.
fēnix® 8 – 43 mm, AMOLED specifications
The figures that decide a purchase, followed by every line Garmin publishes.
- Battery life
- Smartwatch: Up to 10 days (4 days always-on) Battery Saver Watch Mode: Up to 15 days GPS Only: Up to 28 hours (22 hours always-on) All Satellite Systems: Up to 23 hours (18 hours always-on) All Satellite Systems + Multi-band: Up to 21 hours (16 hours always-on)* All Satellite Systems + Music: Up to 6 hours Max Battery GPS: Up to 49 hours Expedition GPS: Up to 10 days *Assuming typical use with SatIQ technology
- Display
- 1.3” (33.00 mm) diameter
- Resolution
- 416 x 416 pixels
- Water rating
- 10 ATM
- Case material
- fiber-reinforced polymer with metal rear cover
- Bezel
- stainless steel or titanium
- Glass
- Corning® Gorilla® Glass or sapphire crystal
- Strap
- silicone
- Storage
- 32 GB
- Charging
- Garmin proprietary plug charger
Full specification sheet
333 published lines across 21 groups, unedited
Overview
- Family
- Garmin
General
- Battery life
- Smartwatch: Up to 10 days (4 days always-on) Battery Saver Watch Mode: Up to 15 days GPS Only: Up to 28 hours (22 hours always-on) All Satellite Systems: Up to 23 hours (18 hours always-on) All Satellite Systems + Multi-band: Up to 21 hours (16 hours always-on)* All Satellite Systems + Music: Up to 6 hours Max Battery GPS: Up to 49 hours Expedition GPS: Up to 10 days *Assuming typical use with SatIQ technology
- Battery type
- Lithium ion
- Display Size
- 1.3” (33.00 mm) diameter
- Case material
- fiber-reinforced polymer with metal rear cover
- Color display
- Lens Material
- Corning® Gorilla® Glass or sapphire crystal
- Bezel Material
- stainless steel or titanium
- Memory/History
- 32 GB
- Strap material
- silicone
- Charging method
- Garmin proprietary plug charger
- Large font option
- Display resolution
- 416 x 416 pixels
- Built-in speaker/microphone
- Leakproof inductive buttons
- QuickFit® watch band compatible
- included (20 mm)
Sensors
- GPS
- QZSS
- BeiDou
- Compass
- GLONASS
- Galileo
- Gyroscope
- Thermometer
- Depth sensor
- yes (to 40 m)
- Accelerometer
- SatIQ™ Technology
- Ambient light sensor
- Barometric altimeter
- Pulse Ox Blood Oxygen Saturation Monitor
- Garmin Elevate™ wrist heart rate monitor
Product Info
- Main SKU
- 010-02903-10
- Product ID
- 1228493
- Product Name
- fēnix® 8 – 43 mm, AMOLED
- Release Date
- 8/27/2024
- Product Variation
- Sapphire, Soft Gold with Fog Gray/Dark Sandstone Silicone Band
Clock Features
- Timer
- Stopwatch
- Time/date
- Alarm clock
- GPS Time Sync
- Sunrise/sunset times
- Automatic daylight saving time
Diving Features
- PO2
- up to 1.6 with customizable Deco settings
- Tides
- Backlight
- yes (configurable intensity; always on)
- Gas mixes
- Air, Nitrox (21-40% Oxygen)
- APNEA mode
- Deep Stops
- yes (using custom Gradient Factors)
- No fly time
- Safety Stop
- yes (customizable off/3min/5min)
- Dive planner
- yes (Basic NDL & Gas Planner)
- Nitrox support
- Alerts & alarms
- yes (vibration only)
- Single-gas mode
- 3-axis dive compass
- yes with adjustable heading, quick change to 90R, 90L, and Reciprocal. Indicates degrees and direction back to set heading.
- Auto start/end dive
- Decompression model
- Bühlmann ZHL-16c with Gradient Factors
- Missed Deco Lockout
- yes (can be disabled prior to dive with user acknowledgement)
- Custom end-dive timeout
- yes (20 sec to 10 min)
- Customizable conservatism
- yes (Low/Medium/High)
- Surface diver status widget
- yes (Surface Interval, no fly time, N2 loading, CNS, OTU, and Tissue Compartment status)
- Automatic altitude adjustment
- Dive ascent/descent rate indicator
- Dive activity maximum operating depth
- 40 meters
- Sync dive log to Garmin Dive™ Mobile app
- Automatically saves dive entry and exit locations
Boating Features
- Wearable trolling motor remote
Cycling Features
- Courses
- Power guide
- MTB Grit & Flow
- Race an activity
- Power meter compatible
- Advanced cycling dynamics
- Power curve and % FTP workouts
- Compatible with Varia™ lights
- FTP (Functional Threshold Power)
- yes (with compatible accessory)
- Compatible with Varia headlight camera
- Speed and cadence sensor support (w/sensor)
- Cycle Map (routable cycling-specific street map)
- Bike lap and lap maximum power (with power sensor)
- Compatible with Varia™ radar (rear-facing radar)
- Compatible with Vector™ and Rally™ (power meters)
- Compatible with Varia Vision™ (head-mounted display)
- Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)
Golfing Features
- PinPointer
- Swing Tempo
- Custom targets
- Tempo Training
- Virtual caddie
- Full vector map
- Handicap scoring
- Tournament legal
- Digital scorecard
- Garmin AutoShot™
- PlaysLike distance
- Round timer/odometer
- Auto CourseView updates
- Yardage to layups/doglegs
- Hazards and course targets
- Pairs with Garmin Golf app
- Green View with manual pin position
- Preloaded with 43,000 courses worldwide
- Green Contours (with Garmin Golf membership)
- CT10 Automatic club tracking compatible (requires accessory)
- Yardage to F/M/B (distance to front, middle and back of green)
- Stat tracking (strokes, putts per round, greens and fairways hit)
- Wind speed and direction (requires connection to Garmin Golf app)
- Touch-targeting (touch target on display to see the distance to any point)
- Measures shot distance (calculates exact yardage for shots from anywhere on course)
- automatic
Running Features
- Hill score
- Run workouts
- Running power
- Race predictor
- Foot pod capable
- Running dynamics
- Lactate threshold
- yes (with compatible accessory)
- Grade-adjusted pace
- Trail run auto climb
- Performance condition
- Run/Walk/Stand detection
- Stride length (real time)
- PacePro™ Pacing Strategies
- Vertical oscillation and ratio
- Ground contact time and balance
- yes (GCT balance with accessory)
- GPS-based distance, time and pace
- Course- and weather-specific race predictor
- Cadence (provides real-time number of steps per minute)
What You'll Love
- Touchscreen
- Display type
- AMOLED
- Water rating
- 10 ATM
- Garmin Pay™
- Music storage
- Garmin ECG App
- LED flashlight
- Multi-band GPS
- Training status
- Built-in mapping
- Training readiness
- Pulse Ox blood oxygen
- Sleep score and insights
- Battery life (smartwatch mode)
- Up to 10 days (4 days always-on)
- Make calls and send texts via voice
Activity Profiles
- Gym
- Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Jump Roping
- Dive
- Scuba Diving (single gas), Apnea Diving, Depth App
- Swim
- Pool Swimming, Open Water Swimming
- Cycling
- Biking, Road Biking, Mountain Biking, Gravel Biking, Bike Commuting, Bike Touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX
- Wellness
- Walking, Indoor Walking, Pilates, Yoga
- Multisport
- Swimming/Running, 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, Sailing, Water Skiing, Wakeboarding, Wakesurfing, Tubing, Snorkeling, 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, Ultra Running, Obstacle Racing
- Outdoor recreation
- Hiking, Rucking, Indoor Climbing, Bouldering, Climbing, Hunting, Horseback Riding, Golfing, Disc Golf, Archery
- Other activity profiles
- Inline Skating
Swimming Features
- Pool swim workouts
- Critical swim speed
- Time and distance alerts
- Auto rest (pool swim only)
- Drill logging (pool swim only)
- Pacing alerts (pool swim only)
- Countdown start (pool swim only)
- Underwater wrist-based heart rate
- "Repeat on" rest timer (pool swim only)
- Basic rest timer (up from 0) (pool swim only)
- Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only)
- Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories)
- Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories)
- 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, HRM-Swim, HRM-Pro or HRM-Pro Plus)
Tactical Features
- Dual grid coordinates
Outdoor Recreation
- Tides
- Up Ahead
- Auto rest
- TracBack®
- Sight 'N Go
- Tide glance
- Back to start
- Fish forecast
- Explore Nearby
- UltraTrac mode
- Vertical speed
- GPS coordinates
- Area calculation
- yes (via Connect IQ™)
- Elevation profile
- Projected waypoint
- Total ascent/descent
- Future elevation plot
- NextFork™ navigation
- Distance to destination
- Expedition GPS Activity
- Sun and moon information
- Point-to-point navigation
- Preloaded ski resort maps
- ClimbPro™ Ascent Planner
- Rest Timer (Ultra Run only)
- Preloaded road and trail maps
- yes (Sapphire Editions only)
- Bread crumb trail in real time
- Downloadable cartography support
- Barometric trend indicator with Storm Alert
Daily Smart Features
- Stocks
- Calendar
- Passcode
- Connectivity
- Bluetooth®, ANT+®, Wi-Fi®
- Garmin Share
- Find My Phone
- Find My Watch
- Voice command
- Morning report
- Red shift mode
- Weather forecasts
- Smart Notifications
- Smart trainer control
- Smartphone compatibility
- iPhone®, Android™
- Controls smartphone music
- On-device Connect IQ™ Store
- Plays and controls watch music
- Find My Phone during GPS activity
- Pairs with Garmin Connect™ Mobile
- Compatible with Garmin Messenger app
- Battery saver (customizable low power watch)
- Bluetooth phone calling and voice assistant support
- Realtime settings sync with Garmin Connect™ mobile
- View images from notifications on watch (Android™ only)
- Text response/reject phone call with text (Android™ only)
- Connect IQ™ (downloadable watch faces, data fields and apps)
Activity Tracking Features
- TrueUp™
- Move IQ™
- Step counter
- Floors climbed
- Calories burned
- Distance traveled
- Intensity minutes
- Automatic rep counting
- Garmin Connect™ Challenges app
- yes (optional Connect IQ app)
- Move alerts (displays on device after a period of inactivity)
- Auto goal (learns your activity level and assigns a daily step goal)
Workout and Training Plans
- HIIT workouts
- Yoga workouts
- Cardio workouts
- Pilates workouts
- Strength workouts
- Garmin Cycling Coach
- Garmin Running Coach
- Garmin Coach - Strength
- Garmin Running Coach Experts
- On-screen workout animations
- On-screen workout muscle maps
- Garmin Coach - Prebuilt Cycling Plans
- Daily Suggested Workout - Cycling (Pace and Heart Rate Based)
- Daily Suggested Workout - Running (Pace and Heart Rate Based)
Health & Wellness Monitoring
- Sleep
- yes (advanced)
- Hydration
- yes (in Garmin Connect™ and optional Connect IQ™ widget)
- Breathwork
- Meditation
- Fitness age
- Sleep coach
- Nap detection
- All-day stress
- Women's health
- yes (in Garmin Connect™ and optional Connect IQ™ widget)
- Health snapshot
- Jet lag adviser
- Respiration rate
- Skin temperature
- Resting heart rate
- Breathing variations
- Abnormal heart rate alerts
- yes (high and low)
- Relaxation breathing timer
- Body Battery™ energy monitor
- Wrist-based heart rate (constant, every second)
Safety and Tracking Features
- Assistance
- Live Event Sharing
- Incident Detection during select activities
- Incident detection alert on phone for wearables
Training, Planning and Analysis Features
- % HRR
- % HR max
- HR zones
- HR alerts
- Shortcuts
- HRV status
- Load ratio
- Manual lap
- Rest timer
- Auto max HR
- Auto scroll
- Finish time
- HR calories
- Voice alerts
- Custom alerts
- Physio TrueUp
- Recovery time
- Training load
- VO2 Max (Run)
- Course guidance
- Endurance score
- Training effect
- Virtual Partner
- Workout benefit
- Race an Activity
- Realtime stamina
- Advanced workouts
- Interval training
- Race glance/widget
- Training load focus
- VO2 Max (Trail Run)
- Garmin Live Segments
- Strava Live Segments
- GPS speed and distance
- Configurable lap alerts
- Customizable data pages
- Unified training status
- Touch and/or button lock
- Activity history on watch
- Multisport auto transition
- Downloadable training plans
- Training effect (anaerobic)
- Manual multisport activities
- HRM running pace and distance
- Heat and altitude acclimation
- Customizable activity profiles
- Trendline™ Popularity Routing
- Auto Pause® automatic timer halt
- Respiration rate (during exercise)
- yes (with compatible accessory)
- Auto Lap® interval tracking feature
- Primary benefit (Training Effect labels)
- Round-trip course creator (running/cycling)
- Power Modes - customizable in-activity battery settings
- HR broadcast (broadcasts HR data over ANT+® to paired devices)
- Improved interval (includes open repeats, intervals data page, rest screen and auto detection)
- 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)
Compare the fēnix® 8 – 43 mm, AMOLED head to head
How each one differs in the three measurements you can feel on the wrist. Figures are relative to the fēnix® 8 – 43 mm, AMOLED.
Pixel Watch 4 - 41mm
- Width
- -2mm
- Thick
- -1.5mm
- Weight
- -35g
Pixel Watch 4 - 45mm
- Width
- +2mm
- Thick
- -1.5mm
- Weight
- -29.3g
Huawei
Watch 5 - 42mm
- Width
- -1mm
- Thick
- -3.3mm
- Weight
- -15g
Garmin
Forerunner® 570 - 42mm
- Width
- -0.6mm
- Thick
- -0.9mm
- Weight
- -24g
Garmin
Vivoactive 6
- Width
- -0.8mm
- Thick
- -2.9mm
- Weight
- -30g
Huawei
Watch GT 5 Pro 42 mm
- Width
- -0.5mm
- Thick
- -4.2mm
- Weight
- -22g
Garmin
Forerunner® 165
- Width
- same mm
- Thick
- -2.2mm
- Weight
- -27g
Garmin
Forerunner® 165 Music
- Width
- same mm
- Thick
- -2.2mm
- Weight
- -27g
Amazfit
Active
- Width
- -0.6mm
- Thick
- -3.1mm
- Weight
- -39g
Samsung
Galaxy Watch6 - LTE · 44mm
- Width
- -0.2mm
- Thick
- -4.8mm
- Weight
- -32.7g
Samsung
Galaxy Watch6 - Wi-Fi · 44mm
- Width
- -0.2mm
- Thick
- -4.8mm
- Weight
- -32.7g
Amazfit
GTR Mini
- Width
- -0.2mm
- Thick
- -4.6mm
- Weight
- -29.8g
Alternatives to the fēnix® 8 – 43 mm, AMOLED
Watches that cover a similar amount of wrist, with the measurements that separate them.
Garmin
Bounce 2
- Width
- 43mm
- Thick
- 12.4mm
- Weight
- 26.5g
Garmin
Approach® S44
- Width
- 43mm
- Thick
- 11.4mm
- Weight
- 42g
Garmin
Approach® S50
- Width
- 43mm
- Thick
- 11.4mm
- Weight
- 29g
Garmin
Forerunner® 165 Music
- Width
- 43mm
- Thick
- 11.6mm
- Weight
- 39g
Garmin
Forerunner® 165
- Width
- 43mm
- Thick
- 11.6mm
- Weight
- 39g
Garmin
Descent™ Mk3i – 43 mm
- Width
- 43mm
- Thick
- 14.3mm
- Weight
- 49.3g
fēnix® 8 – 43 mm, AMOLED — Frequently Asked Questions
Will the Garmin fēnix® 8 – 43 mm, AMOLED fit my wrist?
The Garmin fēnix® 8 – 43 mm, AMOLED looks balanced on flat wrist widths of roughly 45–61mm (about 12.0–16.3cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Garmin fēnix® 8 – 43 mm, AMOLED take?
20mm. Any 20mm strap fits, so you are not limited to Garmin's own bands — look for a quick-release fitting if you want to swap without tools.
How long does the Garmin fēnix® 8 – 43 mm, AMOLED battery last?
Between 6 hours and 15 days per charge, depending on the power mode. Garmin rates Battery Saver at 15 days and All Satellite Systems + Music at 6 hours; the chart above lists all 8 modes.
How does the Garmin fēnix® 8 – 43 mm, AMOLED battery compare with other Garmin watches?
At 10 days in everyday use it ranks #179 of the 257 Garmin watches in our database — below the middle of the range. The full ranking, including GPS and power-saving figures, is on our Garmin battery life comparison.
Is the Garmin fēnix® 8 – 43 mm, AMOLED thick for a 43mm watch?
At 13.8mm, thicker than 70% of 43mm watches — it will sit noticeably high on the wrist. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.
Should I get the 43mm, 47mm or 51mm fēnix 8?
The fēnix 8 comes in 3 case sizes — 43mm, 47mm, 51mm. Which one suits you depends on the flat width of your wrist rather than preference: the larger sizes need a wider wrist to sit inside the edge. Set your measurement in the size picker above and each variant reports its clearance in millimetres.
What other watches are the same size as the Garmin fēnix® 8 – 43 mm, AMOLED?
OnePlus Watch 3 43mm, Oppo Watch X2 Mini, Omega Speedmaster Moonphase Stainless Steel / Black Meteorite / Bracelet, Zenith Defy Extreme Diver Shadow / Bracelet all sit within half a millimetre of the Garmin fēnix® 8 – 43 mm, AMOLED's 43mm case, so they cover the same amount of wrist.
