Garmin Fenix 9 43mm vs Forerunner 70
Size, specs & wrist fit compared
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Which one fits you
Both need much the same wrist — roughly 45–61mm across the flat of the wrist. Neither will fit where the other won't, so decide on thickness, weight and features instead.
The Fenix 9 43mm and Forerunner 70 share a near-identical 43mm case, so wrist presence comes down to thickness, lug-to-lug and weight.
The Forerunner 70 is the slimmer of the two (11.9mm vs 13.8mm), so it slides under a cuff more easily.
On the wrist the Forerunner 70 feels lighter (40g vs 61g, case only).
Among the 318 43mm watches we hold thickness for, the Fenix 9 43mm is thicker than 70% — it will sit high even though the case width reads modest.
Among the 314 43mm watches we hold thickness for, the Forerunner 70 is thinner than 84%, so it wears flatter than its width suggests.
The Fenix 9 43mm is 0.4mm wider, 0.4mm longer, 1.9mm thicker and 21g heavier than the Forerunner 70. Both are circular.
Fenix 9 43mm
Forerunner 70
Case width
43mm
42.6mm−0.4mm
Lug-to-lug
43mm
42.6mm−0.4mm
Thickness
13.8mm
11.9mm−1.9mm
Weight
61g
40g−21g
Switch or add watches
Garmin
Fenix 9 43mm
Garmin
Forerunner 70
Fit tool
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.
Your wrist
mm
≈ 146.9mm aroundHow to Measure Your Wrist
1
Measure at the point where you wear your watch — typically just below the wrist bone.
2
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.
3
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.
⚠ Important
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 Fenix 9 43mm
Case 43.0mm · Lug-to-lug 43.0mm · Thickness 13.8mm · 61g
Balanced Fit
43mm on a 55mm wrist
Understated Balanced Sweet Spot Bold Overhang ⚠
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.
How to Measure
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.
Against one you know
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 wrist61g
Substantial without being a burden — the usual weight of a steel watch on a wrist this size. (1.1g per mm of wrist)
Garmin Forerunner 70
Case 42.6mm · Lug-to-lug 42.6mm · Thickness 11.9mm · 40g
Balanced Fit
42.6mm on a 55mm wrist
Understated Balanced Sweet Spot Bold Overhang ⚠
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 42.6mm, so you could go bigger.
How to Measure
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.
Against one you know
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 wrist6.2mm spare each side
Comfortable, with visible skin either side.
- Off the wrist11.9mm off the skin
Normal sports-watch height for a wrist this size. (11.9mm case, back against the skin)
- How it seats~4.2mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist40g
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.
Highlight
- Garmin Fenix 9 43mm43mm · 13.8mm thick
- Garmin Forerunner 7042.6mm · 11.9mm thick
3D preview
Fenix 9 43mm vs Forerunner 70 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 Forerunner 70 lasts 1.3× as long as the Fenix 9 43mm (13 days against 10 days).
Fenix 9 43mmForerunner 70
Smartwatch
10 days13 days
Specifications
The short version
7 key specs| Spec | GarminFenix 9 43mm | GarminForerunner 70 |
|---|---|---|
| Case Width | 43mm | 42.6mm |
| Thickness | 13.8mm | 11.9mm |
| Weight | 61g | 40g |
| Shape | Circular | Circular |
| Display type | AMOLED | AMOLED (optional always-on mode) |
| Battery life | Smartwatch: Up to 10 days Low Power Watch Mode: Up to 15 days Activity Mode (Normal): Up to 18 hours Activity Mode + Music (Normal): Up to 7 hours Activity Mode (Max Battery): Up to 49 hours Activity Mode (Extended Battery): Up to 22 hours Activity Mode (Max Accuracy): Up to 15 hours Expedition Mode: Up to 10 days See Details | Smartwatch mode: Up to 13 days (5 days display always-on) Battery Saver Smartwatch mode: Up to 28 days GPS-Only GNSS mode: Up to 23 hours All-Systems GNSS mode: Up to 16 hours See Details |
| Released | 2026 | 2026 |
Every specification
385 specs| Spec | Garmin Fenix 9 43mm | Garmin Forerunner 70 |
|---|---|---|
| Overview | ||
| Family | Garmin | Garmin |
| General | ||
| Weight | 61 g (case only: 44 g) | 40 g |
| Battery life | Smartwatch: Up to 10 days Low Power Watch Mode: Up to 15 days Activity Mode (Normal): Up to 18 hours Activity Mode + Music (Normal): Up to 7 hours Activity Mode (Max Battery): Up to 49 hours Activity Mode (Extended Battery): Up to 22 hours Activity Mode (Max Accuracy): Up to 15 hours Expedition Mode: Up to 10 days See Details | Smartwatch mode: Up to 13 days (5 days display always-on) Battery Saver Smartwatch mode: Up to 28 days GPS-Only GNSS mode: Up to 23 hours All-Systems GNSS mode: Up to 16 hours See Details |
| Battery type | Lithium ion | Lithium ion |
| Display Size | 1.3” (33.0 mm) diameter | 1.2" (30.4 mm) diameter |
| Case material | fiber-reinforced polymer with titanium rear cover | — |
| Color display | Yes | Yes |
| Lens material | sapphire crystal | chemically strengthened glass |
| 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 ComfortFit Short: 130-200 mm ComfortFit Long: 150-225 mm | 42.6 x 42.6 x 11.9 mm Fits wrists with a circumference of 126-203 mm |
| Bezel material | titanium | fiber-reinforced polymer |
| Memory/History | 64 GB | 512 MB |
| Strap material | silicone | silicone |
| Charging method | Garmin proprietary plug charger | Garmin proprietary plug charger |
| Large font option | Yes | Yes |
| Display resolution | 416 x 416 pixels | 390 x 390 pixels |
| Built-in speaker/microphone | Yes | — |
| Leakproof inductive buttons | Yes | — |
| QuickFit® watch band compatible | included (20 mm) | — |
| Quick Release bands | — | yes (20 mm, Industry standard) |
| Sensors | ||
| Stocks | Yes | Yes |
| Calendar | Yes | Yes |
| Passcode | Yes | Yes |
| Calculator | Yes | Yes |
| Color shift | Yes | Yes |
| Connectivity | Bluetooth®, ANT+®, Wi-Fi® | Bluetooth®, ANT+® |
| Garmin Share | Yes | Yes |
| Find My Phone | Yes | Yes |
| Sports scores | Yes | — |
| Voice command | Yes | — |
| Evening report | Yes | Yes |
| Morning report | Yes | Yes |
| Red shift mode | Yes | Yes |
| Weather forecasts | Yes | Yes |
| Smart Notifications | Yes | Yes |
| Smart trainer control | Yes | — |
| Smartphone compatibility | iPhone®, Android™ | iPhone®, Android™ |
| Controls smartphone music | Yes | Yes |
| On-device Connect IQ™ Store | Yes | Yes |
| Plays and controls watch music | Yes | — |
| Find My Phone during GPS activity | Yes | Yes |
| Pairs with Garmin Connect™ Mobile | Yes | Yes |
| Compatible with Garmin Messenger app | Yes | Yes |
| Find My Garmin (helps locate lost device) | Yes | Yes |
| Battery saver (customizable low power watch) | Yes | Yes |
| Bluetooth phone calling and voice assistant support | Yes | — |
| Realtime settings sync with Garmin Connect™ mobile | Yes | Yes |
| View images from notifications on watch (Android™ only) | Yes | Yes |
| Text response/reject phone call with text (Android™ only) | Yes | Yes |
| Connect IQ™ (downloadable watch faces, data fields and apps) | Yes | Yes |
| Hourly alert | — | Yes |
| Color filters | — | Yes |
| Variant | ||
| Color | Titanium with Fog Gray Silicone Band | Black |
| Version | fēnix 9 | — |
| Case Size | 43 mm | — |
| Solar Charging | No | — |
| Available Colors | Titanium with Pebble Gray Silicone Band; Titanium with Fog Gray Silicone Band | Citron; Whitestone; Black; Tidal Blue; Soft Pink; Cool Lavender |
| inReach Connectivity (LTE/satellite) | No | — |
| Clock Features | ||
| Sleep | yes (advanced) | yes (advanced) |
| Hydration | yes (in Garmin Connect™ and optional Connect IQ™ widget) | yes (in Garmin Connect™ and optional Connect IQ™ widget) |
| Breathwork | Yes | Yes |
| Meditation | Yes | — |
| Fitness age | Yes | Yes |
| Sleep coach | Yes | Yes |
| Health status | Yes | Yes |
| Nap detection | Yes | Yes |
| All-day stress | Yes | Yes |
| Women's health | yes (in Garmin Connect™ and optional Connect IQ™ widget) | yes (in Garmin Connect™ and optional Connect IQ™ widget) |
| Health snapshot | Yes | Yes |
| Jet lag adviser | Yes | — |
| Sleep alignment | Yes | — |
| Respiration rate | Yes | Yes |
| Skin temperature | Yes | — |
| Lifestyle logging | Yes | Yes |
| Resting heart rate | Yes | Yes |
| Breathing variations | Yes | Yes |
| Past ovulation estimates | Yes | — |
| Abnormal heart rate alerts | yes (high and low) | yes (high and low) |
| Relaxation breathing timer | Yes | Yes |
| Body Battery™ energy monitor | Yes | Yes |
| Heart rate (constant, every second) | Yes | Yes |
| Relaxation reminders | — | Yes |
| Diving Features | ||
| Indoor rowing max heart rate | Yes | — |
| Indoor rowing FTP (requires compatible rower) | Yes | — |
| Indoor rowing VO2 max (requires compatible rower) | Yes | — |
| Indoor rowing lactate threshold (requires compatible rower) | Yes | — |
| Indoor rowing power curve/zones (requires compatible rower) | Yes | — |
| Gaming 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 | — |
| Single-gas mode | Yes | — |
| 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. | — |
| 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 | — |
| Rowing Features | ||
| Wearable trolling motor remote | Yes | — |
| Boating 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 | — |
| Cycling Features | ||
| Pool swim workouts | Yes | Yes |
| Critical swim speed | Yes | — |
| Time and distance alerts | Yes | Yes |
| Auto rest (pool swim only) | Yes | Yes |
| Drill logging (pool swim only) | Yes | Yes |
| Pacing alerts (pool swim only) | Yes | — |
| Countdown start (pool swim only) | Yes | Yes |
| Underwater wrist-based heart rate | Yes | Yes |
| "Repeat on" rest timer (pool swim only) | Yes | Yes |
| Basic rest timer (up from 0) (pool swim only) | Yes | Yes |
| Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only) | Yes | Yes |
| Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories) | Yes | 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 compatible HRM) | Yes |
| Golfing Features | ||
| Tides | Yes | — |
| Auto rest | Yes | — |
| Sight 'N Go | Yes | — |
| Tide glance | Yes | — |
| Fish forecast | Yes | — |
| UltraTrac mode | Yes | — |
| Vertical speed | Yes | — |
| GPS coordinates | Yes | — |
| Elevation profile | Yes | — |
| Projected waypoint | Yes | — |
| Total ascent/descent | Yes | — |
| Future elevation plot | Yes | — |
| Distance to destination | Yes | — |
| Expedition GPS Activity | Yes | — |
| Sun and moon information | Yes | — |
| Rest Timer (Ultra Run only) | Yes | — |
| Barometric trend indicator with storm alert | Yes | — |
| Running 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 | — |
| CT1 Automatic club tracking compatible (requires accessory) | 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 | — |
| Auto rest | — | Yes |
| UltraTrac mode | — | Yes |
| Future elevation plot | — | Yes |
| Distance to destination | — | Yes |
| Sun and moon information | — | Yes |
| Rest Timer (Ultra Run only) | — | Yes |
| What You'll Love | ||
| Timer | Yes | Yes |
| Stopwatch | Yes | Yes |
| Time/date | Yes | Yes |
| Alarm clock | Yes | Yes |
| Touchscreen | Yes | Yes |
| Display type | AMOLED | AMOLED (optional always-on mode) |
| Water rating | 10 ATM | 5 ATM |
| GPS Time Sync | Yes | Yes |
| Garmin Pay™ | Yes | — |
| Music storage | Yes | — |
| Garmin ECG App | Yes | — |
| LED flashlight | Yes | — |
| Multi-band GPS | Yes | — |
| Training status | Yes | Yes |
| Built-in mapping | Yes | — |
| Smart wake alarm | Yes | Yes |
| Training readiness | Yes | Yes |
| Sunrise/sunset times | Yes | Yes |
| Pulse Ox blood oxygen | Yes | yes (spot-check, and optional all-day and in sleep) |
| Sleep score and insights | Yes | Yes |
| Automatic daylight saving time | Yes | Yes |
| Battery life (smartwatch mode) | Up to 10 days | Up to 13 days |
| Make calls and send texts via voice | Yes | — |
| Activity Profiles | ||
| Assistance | Yes | Yes |
| Live Event Sharing | Yes | Android™ Only |
| Incident Detection during select activities | Yes | Yes |
| Incident detection alert on phone for wearables | Yes | Yes |
| Tactical Features | ||
| Gaming Activity | Yes | — |
| GameOn™ app compatible | Yes | — |
| Outdoor Recreation | ||
| Up Ahead | Yes | Yes |
| TracBack® | Yes | Yes |
| Back to start | Yes | Yes |
| Explore Nearby | Yes | — |
| Perspective view | Yes | — |
| NextFork™ navigation | Yes | — |
| Point-to-point navigation | Yes | Yes |
| Preloaded ski resort maps | Yes | — |
| ClimbPro™ Ascent Planner | Yes | — |
| Preloaded road and trail maps | Yes | — |
| Bread crumb trail in real time | Yes | Yes |
| Downloadable cartography support | Yes | — |
| Daily Smart Features | ||
| HIIT workouts | Yes | Yes |
| Yoga workouts | Yes | Yes |
| Cardio workouts | Yes | Yes |
| Pilates workouts | Yes | Yes |
| Rucking workouts | Yes | — |
| Strength workouts | Yes | Yes |
| Multisport workouts | Yes | — |
| Garmin Cycling Coach | Yes | — |
| Garmin Running Coach | Yes | Yes |
| Garmin Triathlon Coach | Yes | — |
| Garmin Coach - Strength | Yes | Yes |
| Mixed session multisport | Yes | — |
| Garmin Running Coach Experts | Yes | Yes |
| On-screen workout animations | Yes | — |
| On-screen workout muscle maps | Yes | Yes |
| Garmin Coach - Prebuilt Cycling Plans | Yes | Yes |
| Grade-adjusted pace based workouts (running) | Yes | — |
| Daily Suggested Workout - Cycling (Pace and Heart Rate Based) | Yes | — |
| Daily Suggested Workout - Running (Pace and Heart Rate Based) | Yes | Yes |
| Garmin fitness coach | — | Yes |
| Mapping & Navigation | ||
| Courses | Yes | Yes |
| Power guide | Yes | — |
| MTB Grit & Flow | Yes | — |
| Race an activity | Yes | Yes |
| Power meter compatible | Yes | — |
| Advanced cycling dynamics | Yes | — |
| Power curve and % FTP workouts | Yes | — |
| Compatible with Varia™ lights | Yes | Yes |
| FTP (Functional Threshold Power) | yes (with compatible accessory) | — |
| Compatible with Varia headlight camera | Yes | Yes |
| Speed and cadence sensor support (w/sensor) | Yes | 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 | Yes |
| Compatible with Vector™ and Rally™ (power meters) | Yes | — |
| Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) | Yes | Yes |
| Activity Tracking Features | ||
| % HRR | Yes | Yes |
| % HR max | Yes | Yes |
| HR zones | Yes | Yes |
| HR alerts | Yes | Yes |
| Shortcuts | Yes | Yes |
| HRV status | Yes | Yes |
| Load ratio | Yes | Yes |
| Manual lap | Yes | Yes |
| Rest timer | Yes | Yes |
| Auto max HR | Yes | Yes |
| Auto scroll | Yes | — |
| Finish time | Yes | Yes |
| Garmin Epic | Yes | — |
| HR calories | Yes | Yes |
| Voice alerts | Yes | Yes |
| Custom alerts | Yes | Yes |
| Physio TrueUp | Yes | Yes |
| Recovery time | Yes | Yes |
| Training load | Yes | Yes |
| VO2 Max (Run) | Yes | Yes |
| Course guidance | Yes | Yes |
| Endurance score | Yes | — |
| Training effect | Yes | Yes |
| Virtual Partner | Yes | — |
| Workout benefit | Yes | — |
| Race an Activity | Yes | Yes |
| Realtime stamina | Yes | — |
| Advanced workouts | Yes | Yes |
| Interval training | Yes | Yes |
| Race glance/widget | Yes | Yes |
| Training load focus | Yes | Yes |
| VO2 Max (Trail Run) | Yes | Yes |
| Garmin Live Segments | Yes | — |
| Strava Live Segments | Yes | — |
| GPS speed and distance | Yes | Yes |
| Configurable lap alerts | Yes | Yes |
| Customizable data pages | Yes | Yes |
| Unified training status | Yes | Yes |
| Touch and/or button lock | Yes | Yes |
| Activity history on watch | Yes | Yes |
| Multisport auto transition | Yes | — |
| Downloadable training plans | Yes | Yes |
| Training effect (anaerobic) | Yes | Yes |
| Manual multisport activities | Yes | — |
| HRM running pace and distance | Yes | Yes |
| Heat and altitude acclimation | Yes | — |
| Customizable activity profiles | Yes | Yes |
| Trendline™ Popularity Routing | Yes | — |
| Auto Pause® automatic timer halt | Yes | Yes |
| Respiration rate (during exercise) | yes (with compatible accessory) | yes (with compatible accessory) |
| Auto Lap® interval tracking feature | Yes | Yes |
| Primary benefit (Training Effect labels) | Yes | 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 | Yes |
| Improved interval (includes open repeats, intervals data page, rest screen and auto detection) | Yes | 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) | — |
| Workout and Training Plans | ||
| Gym | Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Jump Roping | Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Indoor Rowing, Jump Roping |
| Dive | Scuba Diving (single gas), Apnea Diving | — |
| Swim | Pool Swimming, Open Water Swimming | Pool Swimming |
| Cycling | Biking, Road Biking, Mountain Biking, Gravel Biking, Bike Commuting, Bike Touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX | Biking, Road Biking, Mountain Biking, Gravel Biking, Bike Commuting, Bike Touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross |
| Wellness | Walking, Pilates, Yoga, Indoor Walking, Mobility | Walking, Pilates, Yoga , Indoor Walking, Mobility, Breathwork |
| Multisport | Swimming/Running, Triathlon | — |
| In the ring | Boxing, Mixed Martial Arts | Boxing, Mixed Martial Arts |
| Team sports | Basketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball | Basketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball |
| Motor sports | Motorcycling, Overlanding, Motocrossing, ATVing, Snowmobiling | 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 | Stand Up Paddleboarding, Rowing, Kayaking, Snorkeling |
| Racket sports | Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball | Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball |
| Indoor running | Treadmill Running, Indoor Track Running, Virtual Running | Treadmill Running, Indoor Track Running, Virtual Running |
| Outdoor running | Running, Outdoor Track Running, Trail Running, Ultra Running, Obstacle Racing | Running, Outdoor Track Running, Trail Running, Ultra Running, Obstacle Racing |
| Snow and winter | Skiing, Snowboarding, Backcountry Snowboarding, XC Classic Skiing, XC Skate Skiing, Backcountry Skiing, Ice Skating, Snowshoeing | Skiing, Snowboarding, XC Classic Skiing, XC Skate Skiing, Ice Skating, Snowshoeing |
| Outdoor recreation | Hiking, Rucking, Indoor Climbing, Bouldering, Mountaineering, Hunting, Horseback Riding, Golfing, Disc Golf, ArcheryX | Hiking, Rucking, Mountaineering, Horseback Riding, Disc Golf, Archery |
| Other activity profiles | Inline Skating | Inline Skating |
| Health & Wellness Monitoring | ||
| GPS | Yes | Yes |
| QZSS | Yes | — |
| BeiDou | Yes | — |
| Compass | Yes | — |
| GLONASS | Yes | Yes |
| Galileo | Yes | Yes |
| Gyroscope | Yes | — |
| Thermometer | Yes | — |
| Depth sensor | yes (to 40 m) | — |
| Accelerometer | Yes | Yes |
| SatIQ™ Technology | Yes | — |
| Ambient light sensor | Yes | Yes |
| Barometric altimeter | Yes | — |
| Pulse Ox Blood Oxygen Saturation Monitor | Yes | Yes |
| Garmin Elevate™ wrist heart rate monitor | Yes | Yes |
| Safety and Tracking Features | ||
| Dual grid coordinates | Yes | — |
| TrueUp™ | — | Yes |
| Move IQ™ | — | Yes |
| Step counter | — | Yes |
| Calories burned | — | Yes |
| Distance traveled | — | Yes |
| Intensity minutes | — | Yes |
| Automatic rep counting | — | Yes |
| Move Alert movement options | — | 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 |
| Training, Planning and Analysis Features | ||
| Hill score | Yes | — |
| Run workouts | Yes | Yes |
| Running power | Yes | Yes |
| Race predictor | Yes | Yes |
| Running Economy | yes (with compatible accessory) | — |
| Step speed loss | yes (with compatible accessory) | — |
| Foot pod capable | Yes | Yes |
| Running dynamics | Yes | Yes |
| Lactate threshold | Yes | — |
| Running Tolerance | Yes | — |
| Grade-adjusted pace | Yes | — |
| Trail run auto climb | Yes | — |
| Performance condition | Yes | — |
| Run/Walk/Stand detection | Yes | Yes |
| Stride length (real time) | Yes | Yes |
| PacePro™ Pacing Strategies | Yes | Yes |
| Projected race time and pace | Yes | — |
| Vertical oscillation and ratio | Yes | Yes |
| Ground contact time and balance | yes (GCT balance with accessory) | yes (GCT balance with accessory) |
| GPS-based distance, time and pace | Yes | Yes |
| Course- and weather-specific race predictor | Yes | Yes |
| Cadence (provides real-time number of steps per minute) | Yes | Yes |
| Quick workout | — | Yes |
Wrist Fit
Garmin Fenix 9 43mm
Sits best on wrists ~45–61mm wide (≈ 12.0–16.3cm circumference).
Garmin Forerunner 70
Sits best on wrists ~45–61mm wide (≈ 12.0–16.3cm circumference).
Frequently Asked Questions
Is the Garmin Fenix 9 43mm bigger than the Garmin Forerunner 70?
The Garmin Fenix 9 43mm is bigger — 43mm vs 42.6mm case width.
Which fits a smaller wrist better, the Garmin Fenix 9 43mm or the Garmin Forerunner 70?
The Garmin Fenix 9 43mm suits wrists around 45–61mm wide, and the Garmin Forerunner 70 around 45–61mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Garmin Fenix 9 43mm and Garmin Forerunner 70 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.