Garmin Fenix 8 43mm AMOLED vs Google Pixel Watch 4 45mm
Size, specs & wrist fit compared
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Which one fits you
On wrists narrower than about 47mm, the Garmin Fenix 8 43mm AMOLED is the safer pick — it stays proportionate down to roughly 45mm, where the Google Pixel Watch 4 45mm starts to hang over the edge. Above 47mm both sit cleanly, and the Google Pixel Watch 4 45mm gives you more presence.
The Google Pixel Watch 4 45mm wears larger than the Garmin Fenix 8 43mm AMOLED (45mm vs 43mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Google Pixel Watch 4 45mm is the slimmer of the two (12.3mm vs 13.8mm), so it slides under a cuff more easily.
On the wrist the Google Pixel Watch 4 45mm feels lighter (36.7g vs 66g, case only).
Among the 318 43mm watches we hold thickness for, the Garmin Fenix 8 43mm AMOLED is thicker than 70% — it will sit high even though the case width reads modest.
Among the 385 45mm watches we hold thickness for, the Google Pixel Watch 4 45mm is thinner than 71%, so it wears flatter than its width suggests.
The Google Pixel Watch 4 45mm is 2mm wider, 2mm longer, 1.5mm thinner and 29.3g lighter than the Garmin Fenix 8 43mm AMOLED. Both are circular.
Garmin
fēnix® 8 – 43 mm, AMOLED
Pixel Watch 4 - 45mm
Switch or add watches
Garmin
fēnix® 8 – 43 mm, AMOLED
Pixel Watch 4 - 45mm
Watch Fit Tool
For sports watches, lug-to-lug (L2L) is what matters most — it decides whether a watch overhangs your wrist. Bulky is fine; overhang is not.
Measure at the point where you wear your watch — typically just below the wrist bone.
Flat width — lay your arm on a table, palm facing up, and measure straight across the top of your wrist with a ruler. Bone to bone; do not follow the curve down the sides.
Around — wrap a tape measure snugly round the wrist. No tape? Wrap a strip of paper, mark the overlap and hold the strip against a ruler.
Width ≠ circumference. They are different numbers — around 170mm is about 64mm across — so set the toggle to whichever one you actually measured before you type it in.
Garmin fēnix® 8 – 43 mm, AMOLED
Case 43.0mm · Lug-to-lug 43.0mm · Thickness 13.8mm · 66g
Balanced Fit
43mm on a 55mm wrist
Across the wrist it works — 6.0mm spare each side — but a tall watch on this wrist. Fine over a sleeve, awkward under one.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 43mm, so you could go bigger.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist6.0mm spare each side
Comfortable, with visible skin either side.
- Off the wrist13.8mm off the skin
A tall watch on this wrist. Fine over a sleeve, awkward under one. (13.8mm case, back against the skin)
- How it seats~4.4mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist66g
Substantial without being a burden — the usual weight of a steel watch on a wrist this size. (1.2g per mm of wrist)
Google Pixel Watch 4 - 45mm
Case 45.0mm · Lug-to-lug 45.0mm · Thickness 12.3mm · 37g
Balanced Fit
45mm on a 55mm wrist
Comfortably inside the edges of your wrist, and it seats and sits low enough to wear without thinking about it.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 45mm, so you could go bigger.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist5.0mm spare each side
Comfortable, with visible skin either side.
- Off the wrist12.3mm off the skin
Normal sports-watch height for a wrist this size. (12.3mm case, back against the skin)
- How it seats~5.2mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist37g
Light enough to forget you have it on. (0.7g per mm of wrist)
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist.
- Garmin fēnix® 8 – 43 mm, AMOLED43mm · 13.8mm thick
- Google Pixel Watch 4 - 45mm45mm · 12.3mm thick
3D preview
Garmin fēnix® 8 – 43 mm, AMOLED vs Google Pixel Watch 4 - 45mm on a wrist
Sized to your own wrist, turned any way you like.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
Battery life compared
Furthest apart in Smartwatch mode, where the Garmin Fenix 8 43mm AMOLED lasts 6.2× as long as the Google Pixel Watch 4 45mm (10 days against 38.4 hours).
Garmin Fenix 8 43mm AMOLEDGoogle Pixel Watch 4 45mm
Battery Saver
15 days72 hoursSmartwatch
10 days1.6 daysExpedition GPS
10 days—Max Battery GPS
49 hours—GPS Only
28 hours—All Satellite Systems
23 hours—All Satellite Systems + Multi-band
21 hours—All Satellite Systems + Music
6 hours—
Specifications
The short version
6 key specs| Spec | Garminfēnix® 8 – 43 mm, AMOLED | GooglePixel Watch 4 - 45mm |
|---|---|---|
| Case Width | 43mm | 45mm |
| Thickness | 13.8mm | 12.3mm |
| Weight | 66g | 36.7g |
| Shape | Circular | Circular |
| Display type | AMOLED | OLED/AMOLED |
| Released | 2024 | 2025 |
Every specification
444 specs| Spec | Garmin fēnix® 8 – 43 mm, AMOLED | Google Pixel Watch 4 - 45mm |
|---|---|---|
| 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 | Yes | — |
| 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 | Yes | — |
| Display resolution | 416 x 416 pixels | — |
| Built-in speaker/microphone | Yes | — |
| Leakproof inductive buttons | Yes | — |
| QuickFit® watch band compatible | included (20 mm) | — |
| Sensors | ||
| GPS | Yes | — |
| QZSS | Yes | — |
| BeiDou | Yes | — |
| Compass | Yes | — |
| GLONASS | Yes | — |
| Galileo | Yes | — |
| Gyroscope | Yes | — |
| Thermometer | Yes | — |
| Depth sensor | yes (to 40 m) | — |
| Accelerometer | Yes | — |
| SatIQ™ Technology | Yes | — |
| Ambient light sensor | Yes | — |
| Barometric altimeter | Yes | — |
| Pulse Ox Blood Oxygen Saturation Monitor | Yes | — |
| Garmin Elevate™ wrist heart rate monitor | Yes | — |
| has GPS | — | Yes |
| has a compass | — | Yes |
| Has a barometer | — | Yes |
| has a gyroscope | — | Yes |
| Has a cadence sensor | — | Yes |
| has an accelerometer | — | Yes |
| Monitors perspiration | — | No |
| Has a heart rate monitor | — | Yes |
| Has a temperature sensor | — | Yes |
| Monitors blood oxygenation levels | — | Yes |
| 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 | Yes | — |
| Stopwatch | Yes | — |
| Time/date | Yes | — |
| Alarm clock | Yes | — |
| GPS Time Sync | Yes | — |
| Sunrise/sunset times | Yes | — |
| Automatic daylight saving time | Yes | — |
| Diving Features | ||
| PO2 | up to 1.6 with customizable Deco settings | — |
| Tides | Yes | — |
| Backlight | yes (configurable intensity; always on) | — |
| Gas mixes | Air, Nitrox (21-40% Oxygen) | — |
| APNEA mode | Yes | — |
| Deep Stops | yes (using custom Gradient Factors) | — |
| No fly time | Yes | — |
| Safety Stop | yes (customizable off/3min/5min) | — |
| Dive planner | yes (Basic NDL & Gas Planner) | — |
| Nitrox support | Yes | — |
| Alerts & alarms | yes (vibration only) | — |
| Single-gas mode | Yes | — |
| 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 | Yes | — |
| 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 | Yes | — |
| Dive ascent/descent rate indicator | Yes | — |
| Dive activity maximum operating depth | 40 meters | — |
| Sync dive log to Garmin Dive™ Mobile app | Yes | — |
| Automatically saves dive entry and exit locations | Yes | — |
| Boating Features | ||
| Wearable trolling motor remote | Yes | — |
| Cycling Features | ||
| Courses | Yes | — |
| Power guide | Yes | — |
| MTB Grit & Flow | Yes | — |
| Race an activity | Yes | — |
| Power meter compatible | Yes | — |
| Advanced cycling dynamics | Yes | — |
| Power curve and % FTP workouts | Yes | — |
| Compatible with Varia™ lights | Yes | — |
| FTP (Functional Threshold Power) | yes (with compatible accessory) | — |
| Compatible with Varia headlight camera | Yes | — |
| Speed and cadence sensor support (w/sensor) | Yes | — |
| Cycle Map (routable cycling-specific street map) | Yes | — |
| Bike lap and lap maximum power (with power sensor) | Yes | — |
| Compatible with Varia™ radar (rear-facing radar) | Yes | — |
| Compatible with Vector™ and Rally™ (power meters) | Yes | — |
| Compatible with Varia Vision™ (head-mounted display) | Yes | — |
| Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) | Yes | — |
| Golfing Features | ||
| PinPointer | Yes | — |
| Swing Tempo | Yes | — |
| Custom targets | Yes | — |
| Tempo Training | Yes | — |
| Virtual caddie | Yes | — |
| Full vector map | Yes | — |
| Handicap scoring | Yes | — |
| Tournament legal | Yes | — |
| Digital scorecard | Yes | — |
| Garmin AutoShot™ | Yes | — |
| PlaysLike distance | 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 | — |
| Preloaded with 43,000 courses worldwide | Yes | — |
| Green Contours (with Garmin Golf membership) | 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 | — |
| Wind speed and direction (requires connection to Garmin Golf app) | Yes | — |
| Touch-targeting (touch target on display to see the distance to any point) | Yes | — |
| Measures shot distance (calculates exact yardage for shots from anywhere on course) | automatic | — |
| Running Features | ||
| Hill score | Yes | — |
| Run workouts | Yes | — |
| Running power | Yes | — |
| Race predictor | Yes | — |
| Foot pod capable | Yes | — |
| Running dynamics | 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 | — |
| Vertical oscillation and ratio | Yes | — |
| Ground contact time and balance | yes (GCT balance with accessory) | — |
| GPS-based distance, time and pace | Yes | — |
| Course- and weather-specific race predictor | Yes | — |
| Cadence (provides real-time number of steps per minute) | Yes | — |
| What You'll Love | ||
| Touchscreen | Yes | — |
| Display type | AMOLED | — |
| Water rating | 10 ATM | — |
| Garmin Pay™ | Yes | — |
| Music storage | Yes | — |
| Garmin ECG App | Yes | — |
| LED flashlight | Yes | — |
| Multi-band GPS | Yes | — |
| Training status | Yes | — |
| Built-in mapping | Yes | — |
| Training readiness | Yes | — |
| Pulse Ox blood oxygen | Yes | — |
| Sleep score and insights | Yes | — |
| Battery life (smartwatch mode) | Up to 10 days (4 days always-on) | — |
| Make calls and send texts via voice | Yes | — |
| 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 | Yes | — |
| Critical swim speed | Yes | — |
| Time and distance alerts | Yes | — |
| Auto rest (pool swim only) | Yes | — |
| Drill logging (pool swim only) | Yes | — |
| Pacing alerts (pool swim only) | Yes | — |
| Countdown start (pool swim only) | Yes | — |
| Underwater wrist-based heart rate | Yes | — |
| "Repeat on" rest timer (pool swim only) | Yes | — |
| Basic rest timer (up from 0) (pool swim only) | Yes | — |
| Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only) | Yes | — |
| Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories) | Yes | — |
| Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories) | 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, HRM-Swim, HRM-Pro or HRM-Pro Plus) | — |
| Tactical Features | ||
| Dual grid coordinates | Yes | — |
| Outdoor Recreation | ||
| Tides | Yes | — |
| Up Ahead | Yes | — |
| Auto rest | Yes | — |
| TracBack® | Yes | — |
| Sight 'N Go | Yes | — |
| Tide glance | Yes | — |
| Back to start | Yes | — |
| Fish forecast | Yes | — |
| Explore Nearby | Yes | — |
| UltraTrac mode | Yes | — |
| Vertical speed | Yes | — |
| GPS coordinates | Yes | — |
| Area calculation | yes (via Connect IQ™) | — |
| Elevation profile | Yes | — |
| Projected waypoint | Yes | — |
| Total ascent/descent | Yes | — |
| Future elevation plot | Yes | — |
| NextFork™ navigation | Yes | — |
| Distance to destination | Yes | — |
| Expedition GPS Activity | Yes | — |
| Sun and moon information | Yes | — |
| Point-to-point navigation | Yes | — |
| Preloaded ski resort maps | Yes | — |
| ClimbPro™ Ascent Planner | Yes | — |
| Rest Timer (Ultra Run only) | Yes | — |
| Preloaded road and trail maps | yes (Sapphire Editions only) | — |
| Bread crumb trail in real time | Yes | — |
| Downloadable cartography support | Yes | — |
| Barometric trend indicator with Storm Alert | Yes | — |
| Daily Smart Features | ||
| Stocks | Yes | — |
| Calendar | Yes | — |
| Passcode | Yes | — |
| Connectivity | Bluetooth®, ANT+®, Wi-Fi® | — |
| Garmin Share | Yes | — |
| Find My Phone | Yes | — |
| Find My Watch | Yes | — |
| Voice command | Yes | — |
| Morning report | Yes | — |
| Red shift mode | Yes | — |
| Weather forecasts | Yes | — |
| Smart Notifications | Yes | — |
| Smart trainer control | Yes | — |
| Smartphone compatibility | iPhone®, Android™ | — |
| Controls smartphone music | Yes | — |
| On-device Connect IQ™ Store | Yes | — |
| Plays and controls watch music | Yes | — |
| Find My Phone during GPS activity | Yes | — |
| Pairs with Garmin Connect™ Mobile | Yes | — |
| Compatible with Garmin Messenger app | Yes | — |
| Battery saver (customizable low power watch) | Yes | — |
| Bluetooth phone calling and voice assistant support | 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 | ||
| TrueUp™ | Yes | — |
| Move IQ™ | Yes | — |
| Step counter | Yes | — |
| Floors climbed | Yes | — |
| Calories burned | Yes | — |
| Distance traveled | Yes | — |
| Intensity minutes | Yes | — |
| Automatic rep counting | Yes | — |
| Garmin Connect™ Challenges app | yes (optional Connect IQ app) | — |
| Move alerts (displays on device after a period of inactivity) | Yes | — |
| Auto goal (learns your activity level and assigns a daily step goal) | Yes | — |
| Workout and Training Plans | ||
| HIIT workouts | Yes | — |
| Yoga workouts | Yes | — |
| Cardio workouts | Yes | — |
| Pilates workouts | Yes | — |
| Strength workouts | Yes | — |
| Garmin Cycling Coach | Yes | — |
| Garmin Running Coach | Yes | — |
| Garmin Coach - Strength | 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 | — |
| Health & Wellness Monitoring | ||
| Sleep | yes (advanced) | — |
| Hydration | yes (in Garmin Connect™ and optional Connect IQ™ widget) | — |
| Breathwork | Yes | — |
| Meditation | 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 | — |
| Jet lag adviser | Yes | — |
| Respiration rate | Yes | — |
| Skin temperature | Yes | — |
| Resting heart rate | Yes | — |
| Breathing variations | 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 | ||
| 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 | — |
| % HR max | Yes | — |
| HR zones | Yes | — |
| HR alerts | Yes | — |
| Shortcuts | Yes | — |
| HRV status | Yes | — |
| Load ratio | Yes | — |
| Manual lap | Yes | — |
| Rest timer | Yes | — |
| Auto max HR | Yes | — |
| Auto scroll | Yes | — |
| Finish time | Yes | — |
| HR calories | Yes | — |
| Voice alerts | Yes | — |
| Custom alerts | Yes | — |
| Physio TrueUp | Yes | — |
| Recovery time | Yes | — |
| Training load | Yes | — |
| VO2 Max (Run) | Yes | — |
| Course guidance | Yes | — |
| Endurance score | Yes | — |
| Training effect | Yes | — |
| Virtual Partner | Yes | — |
| Workout benefit | Yes | — |
| Race an Activity | Yes | — |
| Realtime stamina | Yes | — |
| Advanced workouts | Yes | — |
| Interval training | Yes | — |
| Race glance/widget | Yes | — |
| Training load focus | Yes | — |
| VO2 Max (Trail Run) | Yes | — |
| Garmin Live Segments | Yes | — |
| Strava Live Segments | Yes | — |
| GPS speed and distance | Yes | — |
| Configurable lap alerts | Yes | — |
| Customizable data pages | Yes | — |
| Unified training status | Yes | — |
| Touch and/or button lock | Yes | — |
| Activity history on watch | Yes | — |
| Multisport auto transition | Yes | — |
| Downloadable training plans | Yes | — |
| Training effect (anaerobic) | Yes | — |
| Manual multisport activities | Yes | — |
| HRM running pace and distance | Yes | — |
| Heat and altitude acclimation | Yes | — |
| Customizable activity profiles | Yes | — |
| Trendline™ Popularity Routing | Yes | — |
| Auto Pause® automatic timer halt | Yes | — |
| Respiration rate (during exercise) | yes (with compatible accessory) | — |
| Auto Lap® interval tracking feature | Yes | — |
| Primary benefit (Training Effect labels) | Yes | — |
| Round-trip course creator (running/cycling) | 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 | — |
| 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) | — |
| Design | ||
| width | — | 45 |
| height | — | 45 |
| volume | — | 24.91 cm³ |
| weight | — | 36.7 g |
| thickness | — | 12.3 |
| ATM rating | — | 5 ATM |
| resolution | — | 456 x 456 px |
| screen size | — | 1.4 inches |
| Display type | — | OLED/AMOLED |
| Has a display | — | Yes |
| pixel density | — | 320 ppi |
| water resistance | — | Waterproof |
| Always-On Display | — | Yes |
| has a touch screen | — | Yes |
| Gorilla Glass version | — | Gorilla Glass 5 |
| waterproof depth rating | — | 50 m |
| Watch band is replaceable | — | Yes |
| Has sapphire glass display | — | No |
| Ingress Protection (IP) rating | — | IP68 |
| has branded damage-resistant glass | — | Yes |
| Battery | ||
| charge time | — | 1.25 hours |
| battery life | — | 1.6 days |
| battery power | — | 455 mAh |
| has wireless charging | — | No |
| has a removable battery | — | No |
| Has a solar power battery | — | No |
| has a rechargeable battery | — | Yes |
| battery life in power save mode | — | 72 hours |
| Features | ||
| RAM | — | 2GB |
| release date | — | 2025-08-20 |
| Has a stopwatch | — | Yes |
| Has smart alarm | — | No |
| warranty period | — | 1 years |
| Has call control | — | Yes |
| Has silent alarm | — | Yes |
| has HRV tracking | — | Yes |
| internal storage | — | 32GB |
| measures VO2 max | — | Yes |
| Has notifications | — | Yes |
| Has ECG technology | — | Yes |
| Locates your phone | — | Yes |
| has fall detection | — | Yes |
| has voice commands | — | Yes |
| Acquires GPS faster | — | No |
| Has vibrating alerts | — | Yes |
| shows readiness level | — | Yes |
| Can be used to answer calls | — | Yes |
| measures resting heart rate | — | Yes |
| has irregular heart rate warnings | — | Yes |
| has fast/slow heart rate notifications | — | Yes |
| Has a built-in camera remote control function | — | Yes |
| Connectivity | ||
| has NFC | — | Yes |
| SIM cards | — | 1 eSIM |
| Wi-Fi version | — | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) |
| supports Wi-Fi | — | Yes |
| supports Galileo | — | Yes |
| Bluetooth version | — | 6 |
| has a cellular module | — | Yes |
| Is compatible with iOS | — | No |
| Is compatible with Android | — | Yes |
| Miscellaneous | ||
| Has passcode | — | Yes |
| Is compatible with Windows | — | No |
| Is compatible with Mac OS X | — | No |
| has an external memory slot | — | No |
| has a battery level indicator | — | Yes |
| has a socket for a 3.5 mm audio jack | — | No |
| App & Software | ||
| Ad-free | — | Yes |
| Free app | — | Yes |
| Has coaching | — | Yes |
| Includes maps | — | Yes |
| Supports routes | — | Yes |
| Has achievements | — | Yes |
| Has goal setting | — | Yes |
| Has live tracking | — | Yes |
| Has exercise diary | — | Yes |
| Predicts ovulation | — | Yes |
| Can be personalised | — | Yes |
| Has weight tracking | — | Yes |
| Predicts start date | — | Yes |
| Tracks water intake | — | Yes |
| Has inactivity alerts | — | Yes |
| Has period notifications | — | Yes |
| Has temperature tracking | — | Yes |
| Doesn’t require account | — | No |
| Provides activity reports | — | Yes |
| Displays fertile window notifications | — | Yes |
| Counts how many calories you've burned | — | Yes |
| Activity tracking | ||
| Measures pace | — | Yes |
| Tracks distance | — | Yes |
| Tracks elevation | — | Yes |
| Designed for golf | — | No |
| Tracks your sleep | — | Yes |
| Tracks steps taken | — | Yes |
| Designed for diving | — | No |
| Has a route tracker | — | Yes |
| Has exercise tagging | — | Yes |
| Has multi-sport mode | — | No |
| Tracks calorie intake | — | Yes |
| Provides sleep reports | — | Yes |
| Detects activities automatically | — | Yes |
| Has a stroke counter for swimming | — | No |
Wrist Fit
Garmin Fenix 8 43mm AMOLED
Sits best on wrists ~45–61mm wide (≈ 12.0–16.3cm circumference).
Google Pixel Watch 4 45mm
Sits best on wrists ~47–64mm wide (≈ 12.6–17.1cm circumference).
Frequently Asked Questions
Is the Garmin Fenix 8 43mm AMOLED bigger than the Google Pixel Watch 4 45mm?
The Google Pixel Watch 4 45mm is bigger — 45mm vs 43mm case width.
Which fits a smaller wrist better, the Garmin Fenix 8 43mm AMOLED or the Google Pixel Watch 4 45mm?
The Garmin Fenix 8 43mm AMOLED suits wrists around 45–61mm wide, and the Google Pixel Watch 4 45mm around 47–64mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Garmin Fenix 8 43mm AMOLED and Google Pixel Watch 4 45mm 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.