Garmin · 2019
Approach S40Size, Dimensions & Wrist Fit
The Garmin Approach S40 sits best on flat wrist widths of about 46–62mm (≈ 12.3–16.6cm wrist circumference). Adjust the slider below to check your wrist.
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.
The Approach® S40 in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 15 hours of use per charge.
- 11.7mm thick. Thinner than 87% of 43mm watches, so it slides under a cuff more easily than most of its size.
- 1.2 in (30.4mm) diameter display.
- chemically strengthened glass case, chemically strengthened glass glass.
Does the Approach S40 fit your wrist?
Drag the slider to your wrist width and see the Approach S40 overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
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 Approach® S40
Case 43.4mm · Lug-to-lug 43.4mm · Thickness 11.7mm · 43g
Balanced Fit
43.4mm 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 43.4mm, 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 wrist5.8mm spare each side
Comfortable, with visible skin either side.
- Off the wrist11.7mm off the skin
Normal sports-watch height for a wrist this size. (11.7mm case, back against the skin)
- How it seats~4.5mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist43g
Light enough to forget you have it on. (0.8g per mm of wrist)
Happy with the fit? Check current availability for the Approach S40.
Check offer2D Dimension Schematics
The Approach® S40 drawn to scale — from above, and in profile against the wrist.
- Garmin Approach® S4043.4mm · 11.7mm thick
3D preview
Garmin Approach® S40 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.
Approach® S40 battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch15 hours
How the Approach® S40 ranks on battery
Against the 296 Garmin watches in our database, ranked on each figure Garmin publishes.
- Everyday use10 days#211 of 285
- GPS tracking15 hours#213 of 267
Approach® S40 specifications
The figures that decide a purchase, followed by every line Garmin publishes.
- Battery life
- Smartwatch mode: Up to 10 daysGPS mode: Up to 15 hours
- Display
- 1.2 in (30.4mm) diameter
- Resolution
- 240 x 240 pixels
- Bezel
- metal
- Glass
- chemically strengthened glass
- Strap
- silicone
- Storage
- 64 MB
- Charging
- Garmin proprietary plug charger
Full specification sheet
59 published lines across 12 groups, unedited
Overview
- Family
- Garmin
General
- Battery life
- Smartwatch mode: Up to 10 daysGPS mode: Up to 15 hours
- Display Size
- 1.2 in (30.4mm) diameter
- Color display
- Lens Material
- chemically strengthened glass
- Bezel Material
- metal
- Memory/History
- 64 MB
- Strap material
- silicone
- Charging method
- Garmin proprietary plug charger
- Display resolution
- 240 x 240 pixels
- Quick Release bands
Sensors
- GPS
- Gyroscope
- Accelerometer
Product Info
- Main SKU
- 010-02140-02
- Product ID
- 635923
- Product Name
- Approach® S40
- Product Variation
- Light Gold with White Band
Clock Features
- Timer
- Stopwatch
- Time/date
- Alarm clock
- GPS Time Sync
- Sunrise/sunset times
- Automatic daylight saving time
Golfing Features
- Custom targets
- Handicap scoring
- Digital scorecard
- Garmin AutoShot™
- Round timer/odometer
- TruSwing™ compatible
- Auto CourseView updates
- Yardage to layups/doglegs
- Hazards and course targets
- Green View with manual pin position
- Preloaded with 43,000 courses worldwide
- 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)
- Measures shot distance (calculates exact yardage for shots from anywhere on course)
- automatic
Running Features
- GPS-based distance, time and pace
Activity Profiles
- Cycling
- Biking, Indoor Biking
Daily Smart Features
- Calendar
- Connectivity
- Bluetooth® Smart
- Find My Phone
- Weather forecasts
- Smart Notifications
- Smartphone compatibility
- iPhone®, Android™
- Pairs with Garmin Connect™ Mobile
Activity Tracking Features
- TrueUp™
- Step counter
- Move alerts (displays on device after a period of inactivity)
- Auto goal (learns your activity level and assigns a daily step goal)
Health & Wellness Monitoring
- Hydration
- yes (in Garmin Connect™)
- Women's health
- yes (in Garmin Connect™)
Training, Planning and Analysis Features
- GPS speed and distance
- Touch and/or button lock
- Auto Pause® automatic timer halt
- Auto Lap® interval tracking feature
Alternatives to the Approach® S40
Watches that cover a similar amount of wrist, with the measurements that separate them.
Garmin
Approach® S42
- Width
- 43.4mm
- Thick
- 11.7mm
- Weight
- 43g
Garmin
vívoactive® 3
- Width
- 43.4mm
- Thick
- 11.7mm
- Weight
- 43g
Garmin
D2™ Air
- Width
- 43.2mm
- Thick
- 12.4mm
- Weight
- 46.3g
Garmin
Venu®
- Width
- 43.2mm
- Thick
- 12.4mm
- Weight
- 46.3g
Garmin
Venu® 2 Plus
- Width
- 43.6mm
- Thick
- 12.6mm
- Weight
- 51g
Garmin
D2™ Air X10
- Width
- 43.6mm
- Thick
- 12.6mm
- Weight
- 51g
Approach® S40 — Frequently Asked Questions
Will the Garmin Approach S40 fit my wrist?
The Garmin Approach S40 looks balanced on flat wrist widths of roughly 46–62mm (about 12.3–16.6cm circumference). Drag the slider above to check it against your own measurement.
How long does the Garmin Approach S40 battery last?
Garmin rates it at 15 hours per charge in everyday use.
How does the Garmin Approach S40 battery compare with other Garmin watches?
At 10 days in everyday use it ranks #211 of the 285 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 Approach S40 thick for a 43mm watch?
At 11.7mm, thinner than 87% of 43mm watches, so it slides under a cuff more easily than most of its size. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.
What other watches are the same size as the Garmin Approach S40?
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 Approach S40's 43.4mm case, so they cover the same amount of wrist.
