Garmin · 2018
D2 DeltaSize, Dimensions & Wrist Fit
The Garmin D2 Delta sits best on flat wrist widths of about 49–67mm (≈ 13.1–17.9cm 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 D2™ Delta in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 42 hours of use per charge.
- 76g on the wrist. Heavier than 71% of the 47mm watches we have weights for.
- 1.2" (30.4 mm) diameter display.
- Takes 22mm bands, so third-party straps fit without an adapter.
Does the D2 Delta fit your wrist?
Drag the slider to your wrist width and see the D2 Delta 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 D2™ Delta
Case 47.0mm · Lug-to-lug 47.0mm · Thickness 15.8mm · 76g
Sweet Spot
47mm on a 55mm wrist
Across the wrist it works — 4.0mm 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 47mm.
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 wrist4.0mm spare each side
Fills the wrist without reaching the edge.
- Off the wrist15.8mm off the skin
A tall watch on this wrist. Fine over a sleeve, awkward under one. (15.8mm case, back against the skin)
- How it seats~6.1mm under the rim
Wide enough that the edge of the case back lifts clear of the skin.
- Weight on the wrist76g
Substantial without being a burden — the usual weight of a steel watch on a wrist this size. (1.4g per mm of wrist)
Happy with the fit? Check current availability for the D2 Delta.
Check offer2D Dimension Schematics
The D2™ Delta drawn to scale — from above, and in profile against the wrist.
- Garmin D2™ Delta47mm · 15.8mm thick
3D preview
Garmin D2™ Delta 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.
D2™ Delta battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch42 hours
How the D2™ Delta ranks on battery
Against the 296 Garmin watches in our database, ranked on each figure Garmin publishes.
- Everyday use12 days#183 of 285
- GPS tracking18 hours#194 of 267
What size band does the D2™ Delta take?
Lug width
22mm
Any 22mm 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 22mm 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.
D2™ Delta specifications
The figures that decide a purchase, followed by every line Garmin publishes.
- Battery life
- Smartwatch mode: Up to 12 daysGPS mode: Up to 18 hoursGPS + Music: Up to 8 hoursUltraTrac™ mode: Up to 42 hours
- Display
- 1.2" (30.4 mm) diameter
- Resolution
- 240 x 240 pixels
- Case material
- fiber-reinforced polymer with metal rear cover
- Bezel
- titanium
- Glass
- domed sapphire crystal
- Strap
- silicone and leather
- Storage
- 16 GB
Full specification sheet
189 published lines across 19 groups, unedited
Overview
- Family
- Garmin
General
- Battery life
- Smartwatch mode: Up to 12 daysGPS mode: Up to 18 hoursGPS + Music: Up to 8 hoursUltraTrac™ mode: Up to 42 hours
- Display Size
- 1.2" (30.4 mm) diameter
- Case material
- fiber-reinforced polymer with metal rear cover
- Color display
- Lens Material
- domed sapphire crystal
- Bezel Material
- titanium
- Memory/History
- 16 GB
- Strap material
- silicone and leather
- Display resolution
- 240 x 240 pixels
- QuickFit® watch band compatible
- yes (22 mm)
Sensors
- GPS
- Compass
- GLONASS
- Galileo
- Gyroscope
- Thermometer
- Accelerometer
- Barometric altimeter
- Garmin Elevate™ wrist heart rate monitor
Product Info
- Main SKU
- 010-01988-30
- Product ID
- 633654
- Product Name
- D2™ Delta
- Product Variation
- Aviator Watch with Brown Leather Band
Clock Features
- Timer
- Stopwatch
- Time/date
- Alarm clock
- GPS Time Sync
- Sunrise/sunset times
- Automatic daylight saving time
Cycling Features
- Courses
- Race an activity
- Power meter compatible
- Compatible with Varia™ lights
- FTP (Functional Threshold Power)
- yes (with compatible accessory)
- 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
- 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
- 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
- Run workouts
- Race predictor
- Foot pod capable
- Running dynamics
- yes (with compatible accessory)
- Lactate threshold
- yes (with compatible accessory)
- Trail run auto climb
- Performance condition
- Stride length (real time)
- yes (with compatible accessory)
- Vertical oscillation and ratio
- yes (with compatible accessory)
- Ground contact time and balance
- yes (with compatible accessory)
- GPS-based distance, time and pace
- Cadence (provides real-time number of steps per minute)
What You'll Love
- Garmin Pay™
- Training status
Activity Profiles
- Gym
- Strength, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Yoga
- Swim
- Pool Swimming, Open Water Swimming, Swimming/Running
- Cycling
- Biking, Mountain Biking, Triathlon
- Outdoor recreation
- Hiking, Climbing, Mountain Biking, Skiing, Snowboarding, XC Classic Skiing, Stand Up Paddleboarding, Rowing, Kayaking, Jumpmaster, Tactical
Aviation Features
- NEXRAD on moving map
- Waypoint information page
- Connext avionics connectivity
- Worldwide airport database(s)
- Multiple time zones with Zulu/UTC
- TAF (Terminal Aerodrome Forecast)
- Altimeter with adjustable baro setting
- METAR (Meteorological Aerodrome Report)
- Worldwide NAVAID and Intersection database(s)
- Wirelessly receive flight plans from Garmin Pilot™
- 3-axis compass with HSI (horizontal situation indicator)
- Moving Map with aviation airports, navaids, roads, bodies of water and more
Swimming Features
- Pool swim workouts
- Drill logging (pool swim only)
- "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™ and HRM-Swim™)
Tactical Features
- XERO™ Locations
- Dual grid coordinates
Outdoor Recreation
- Tides
- yes (via Connect IQ™)
- TracBack®
- Sight 'N Go
- Back to start
- Fish forecast
- yes (via Connect IQ™)
- Explore Nearby
- UltraTrac mode
- Vertical speed
- GPS coordinates
- Area calculation
- yes (via Connect IQ™)
- Elevation profile
- Projected waypoint
- Total ascent/descent
- Future elevation plot
- Distance to destination
- Sun and moon information
- yes (via Connect IQ™)
- Point-to-point navigation
- ClimbPro™ Ascent Planner
- Preloaded road and trail maps
- Bread crumb trail in real time
- Downloadable cartography support
- Barometric trend indicator with Storm Alert
Daily Smart Features
- Calendar
- Connectivity
- Bluetooth®, ANT+®, Wi-Fi®
- Find My Phone
- Find My Watch
- VIRB® Remote
- Weather forecasts
- Smart Notifications
- Smartphone compatibility
- iPhone®, Android™
- Controls smartphone music
- Plays and controls watch music
- Pairs with Garmin Connect™ Mobile
- 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
- Cardio workouts
- Strength workouts
Health & Wellness Monitoring
- Sleep
- yes (advanced)
- Hydration
- yes (in Garmin Connect™)
- Fitness age
- yes (in app)
- All-day stress
- Women's health
- yes (in Garmin Connect™)
- Resting heart rate
- Abnormal heart rate alerts
- yes (high and low)
- Wrist-based heart rate (constant, every second)
Training, Planning and Analysis Features
- % HRR
- % HR max
- HR zones
- HR alerts
- Shortcuts
- Manual lap
- Auto max HR
- Auto scroll
- Finish time
- HR calories
- Voice alerts
- Custom alerts
- Recovery time
- Training load
- VO2 Max (Run)
- Course guidance
- Training effect
- Virtual Partner
- Race an Activity
- Advanced workouts
- Interval training
- Garmin Live Segments
- Strava Live Segments
- GPS speed and distance
- Configurable lap alerts
- Customizable data pages
- Touch and/or button lock
- Activity history on watch
- Downloadable training plans
- Training effect (anaerobic)
- Manual multisport activities
- Customizable activity profiles
- Trendline™ Popularity Routing
- Auto Pause® automatic timer halt
- Auto Lap® interval tracking feature
- Round-trip course creator (running/cycling)
- HR broadcast (broadcasts HR data over ANT+® to paired devices)
- 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)
Alternatives to the D2™ Delta
Watches that cover a similar amount of wrist, with the measurements that separate them.
Garmin
Fenix 9 47mm
- Width
- 47mm
- Thick
- 13.8mm
- Weight
- 75g
Garmin
Fenix 9 Pro 47mm
- Width
- 47mm
- Thick
- 13.8mm
- Weight
- 78g
Garmin
Fenix 9 Pro inReach Solar 47mm
- Width
- 47mm
- Thick
- 15.8mm
- Weight
- 84g
Garmin
Fenix 9 Pro Solar 47mm
- Width
- 47mm
- Thick
- 15.8mm
- Weight
- 84g
Garmin
Fenix 9 Pro inReach 47mm
- Width
- 47mm
- Thick
- 13.8mm
- Weight
- 78g
Garmin
quatix 8 Pro 47mm AMOLED
- Width
- 47mm
- Thick
- 16mm
- Weight
- 77g
D2™ Delta — Frequently Asked Questions
Will the Garmin D2 Delta fit my wrist?
The Garmin D2 Delta looks balanced on flat wrist widths of roughly 49–67mm (about 13.1–17.9cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Garmin D2 Delta take?
22mm. Any 22mm 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 D2 Delta battery last?
Garmin rates it at 42 hours per charge in everyday use.
How does the Garmin D2 Delta battery compare with other Garmin watches?
At 12 days in everyday use it ranks #183 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 D2 Delta thick for a 47mm watch?
At 15.8mm, thicker than 92% of 47mm watches — it will sit noticeably high on the wrist. 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 D2 Delta?
Oppo Watch X3, Xiaomi Watch 5, CMF Watch 3 Pro, Amazfit Balance 2 all sit within half a millimetre of the Garmin D2 Delta's 47mm case, so they cover the same amount of wrist.
