| Manufacturer | Garmin |
|---|---|
| Type | AMOLED aviator smartwatch, based on Venu 4 |
| Series | D2 |
| Released | 22 October 2025 (announced 22 October 2025) |
| Price at launch | GBP 569.99 / USD 649.99 |
| Predecessor | D2 Air X10 |
| Successor | Not yet announced; see Release Radar |
| Sizes | 45mm (medium) |
| Variants | Single edition |
| Colours | Silver with Black band; Slate with Black band |
Specifications as at launch. Features and activity profiles reflect the latest Garmin software.
Expert opinion | What’s new | Specifications | Battery life | Features | Activity profiles | Quick answers | Further reading
Expert opinion
Who it suits: Private pilots who want key aviation information and calls in an everyday AMOLED smartwatch at a lower price.
The D2 Air X15 is based on the Venu 4 and gives you airport data, METARs and TAFs, an HSI, direct-to navigation and Garmin Pilot flight plans, alongside a flashlight, phone calls through the speaker and microphone, music and Garmin Pay.
There are no maps and no aviation moving map, the lens is Gorilla Glass rather than sapphire, and battery tops out at 10 days. It is a sensible, lighter choice for pilots who mainly want a smartwatch; step up to the D2 Mach 2 for maps and outdoor toughness.
Garmin D2 Air X15
Aviator watch
What’s new versus the D2 Air X10
Hardware
- LED flashlight
- Dual-frequency (multi-band) GNSS
Software
- Training Readiness and HRV Status
- Triathlon and multisport profiles
Specifications
The D2 Air X15 comes in one 45mm size. Both colourways share the figures below.
| Specification | D2 Air X15 |
|---|---|
| Display | |
| Display type | AMOLED, always-on option |
| Display size | 1.4″ (35.3mm) |
| Resolution | 454 x 454 pixels |
| Colour | Yes |
| Lens | Corning Gorilla Glass 3 |
| Touchscreen | Yes |
| Physical | |
| Case size | 45mm (medium) |
| Dimensions | 45 x 45 x 12.5mm |
| Weight | 38g (56g with included band) |
| Bezel material | Stainless steel |
| Case material | Stainless steel and fibre-reinforced polymer |
| Band | 22mm quick release, silicone |
| Wrist fit | 135 to 200mm |
| Water rating | 5 ATM |
| © the5krunner. Link required. | |
| Sensors and positioning | |
| GNSS | GPS, GLONASS, Galileo, BeiDou, QZSS, dual-frequency |
| Heart rate | Garmin Elevate wrist heart rate monitor, with ECG app |
| Pulse Ox | Yes |
| Skin temperature | Yes |
| Other sensors | Barometric altimeter, compass, gyroscope, accelerometer, thermometer, ambient light sensor |
| Connectivity and storage | |
| Connectivity | Bluetooth, ANT+, Wi-Fi |
| NFC (Garmin Pay) | Yes |
| Storage | 8GB |
| Music | Yes, music storage and playback |
| Maps | No maps; breadcrumb, point-to-point, TracBack and back to start navigation |
| LED flashlight | Yes |
| Speaker and microphone | Yes |
| Charging | Garmin proprietary plug charger |
| © the5krunner. Link required. | |
Battery life
Battery figures are Garmin’s official ratings.
| Mode | D2 Air X15 |
|---|---|
| Smartwatch | Up to 10 days (4 days display always-on) |
| Battery saver | Up to 25 days |
| GPS only | Up to 20 hours |
| All systems | Up to 19 hours |
| All systems + music | Up to 9 hours |
| All systems + multi-band | Up to 17 hours |
| All systems + multi-band + music | Up to 9 hours |
| Fly activity (GPS + SpO2) | Up to 20 hours |
| © the5krunner. Link required. | |
Features
A full breakdown of Garmin platform features is available at Garmin features explained.
Aviation
- Worldwide airport database
- Worldwide NAVAID and intersection database
- METARs and TAFs
- Wirelessly receives flight plans from Garmin Pilot
- Connext avionics connectivity
- 3-axis compass with HSI (horizontal situation indicator)
- Altimeter with adjustable baro setting
- Multiple time zones with Zulu/UTC
- In-flight Pulse Ox
- Aviation alerts
Plan
- Daily Suggested Workouts for running, cycling, walking and fitness
- Garmin Running Coach (including Running Coach Experts), Garmin Cycling Coach and Garmin Fitness Coach plans
- Garmin Coach prebuilt cycling plans
- Garmin Coach strength plans
- Cardio, strength, HIIT, yoga and Pilates workouts with on-screen animations and muscle maps
- Workouts for wheelchair users
- Multisport workouts
- Race widget and course- and weather-specific race predictor
- Morning Report and Evening Report
- Courses with course guidance
Prepare
- Training Readiness, Training Status, Training Load, Load Ratio and load focus
- HRV Status
- Recovery Time
- Body Battery energy monitoring
- Sleep score, advanced sleep monitoring, sleep coach, nap detection and sleep alignment
- Breathing variations during sleep
- All-day stress and respiration tracking
- Pulse Ox blood oxygen saturation
- Skin temperature
- Health Status
- Meditation, breathwork and relaxation breathing
- Health Snapshot and Jet Lag Adviser
- Heat and altitude acclimation
- Abnormal heart rate alerts
- Lifestyle logging
- Fitness Age
- Women’s health and hydration tracking
Perform
- VO2 max for running and trail running
- Training Effect, aerobic and anaerobic
- Performance condition
- Running dynamics and running power
- Lactate threshold
- PacePro and grade-adjusted pace
- Up Ahead for points along a course
- Breadcrumb, point-to-point and TracBack navigation
- UltraTrac mode
- Golf yardages, digital scorecard and stat tracking
- Power curve with a compatible power meter
- Power meter, Varia radar and Varia lights compatibility
- Pool and open water swim metrics with underwater wrist heart rate
- Multisport auto transition
Connect
- Smart notifications, with text replies and notification images on Android
- Phone calls and voice assistant through the built-in speaker and microphone
- Voice commands
- Garmin Pay contactless payments
- Music storage and playback
- Garmin ECG app
- LED flashlight
- Incident detection and assistance during select activities
- Live event sharing
- Compatible with the Garmin Messenger app
- Find My Phone during GPS activity
- Connect IQ Store on the watch
- Red Shift mode and large font option
- Garmin Share
- Smart trainer control
- Gaming activity and GameOn app
Activity profiles
| Category | Profiles |
|---|---|
| Running | Running, Outdoor Track Running, Trail Running, Ultra Running, Obstacle Racing, Adventure Racing, Treadmill Running, Indoor Track Running, Virtual Running |
| Cycling | Biking, Road Biking, Mountain Biking, Gravel Biking, Bike Commuting, Bike Touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX |
| Swimming | Pool Swimming, Open Water Swimming |
| Multisport | Triathlon, Duathlon, Brick, Pool Triathlon, Swimming/Running, Mixed Session |
| Gym and fitness | Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Jump Roping, Pilates, Yoga, Indoor Walking, Mobility, Boxing, Mixed Martial Arts, Indoor Climbing |
| Outdoor | Walking, Hiking, Rucking, Mountaineering, Bouldering, Horseback Riding, Golfing, Disc Golf, Archery, Inline Skating |
| Other | Winter sports: Skiing, Snowboarding, XC Classic Skiing, XC Skate Skiing, Ice Skating, Snowshoeing | Water sports: Stand Up Paddleboarding, Rowing, Kayaking, Fishing, Snorkelling | Team sports: Basketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball | Racket sports: Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball | Motorsports: Motorcycling, Overlanding, Motocrossing, ATVing, Snowmobiling | Other: Meditation, Breathwork, Gaming |
Garmin D2 Air X15
Aviator watch
Quick answers
When was the Garmin D2 Air X15 released?
Garmin announced and released the D2 Air X15 on 22 October 2025 at USD 649.99.
What aviation features does the D2 Air X15 have?
It has worldwide airport and navaid databases, METARs and TAFs, an HSI, Zulu time, in-flight Pulse Ox, aviation alerts, Connext connectivity and flight plans from Garmin Pilot.
Does the D2 Air X15 have maps?
No, the D2 Air X15 has no moving map or preloaded maps. It offers breadcrumb, point-to-point and TracBack navigation. The D2 Mach 2 adds maps.
Can the D2 Air X15 make phone calls?
Yes, it has a built-in speaker and microphone for calls and voice assistant through a paired phone.
How long does the D2 Air X15 battery last?
Garmin rates the D2 Air X15 for up to 10 days as a smartwatch, 20 hours in GPS-only mode and 20 hours in the Fly activity with Pulse Ox.
Further reading
- Garmin D2 Air X15 buyer’s guide
- Garmin D2 Air X10
- Garmin watch specifications
- Release Radar: upcoming Garmin watches
Related watches
Predecessor: Garmin D2 Air X10, the Venu 2 Plus-based aviator smartwatch.
Step up: Garmin D2 Mach 2, with maps, a moving map with NEXRAD and a sapphire lens.
Small things I always use
- Garmin 90-degree charging adapter: Charges your Garmin from any USB-C cable. Essential when travelling. I use one.
- Body Glide: The blue anti-chafe stick swimmers and runners carry. I use it.
- Speedo earplugs: Fewer ear infections and no cold-water dizziness. I use them.
- Dryrobe Advance: My winter changing robe for open-water swims. I use one. A cheaper option is the AONYIYI changing robe.
- Maurten: Race fuel that stays easy on the stomach. I use them.
- Beet It Sport nitrate shots: Beetroot shots I take in the days before a race. I use them.
- Garmin charging puck: The quickest way to top up before a session. I use one.
- Injinji: Toe socks that stop rubbing, so you run more. I use them.
- Ultimate toe protectors: Stop black toenails on long runs. They work. I use them.
- Compressport R2 v2 calf sleeves: My calf sleeves of choice. I use them.
- Cellucor C4: My pre-workout before hard sessions.
- TPU tubes: Schwalbe Aerothan, Tubolito and Pirelli SmarTube. Light, tiny spares. I use all three.
- G8 insoles: Adjustable insoles that are good. I use them.
- Cycplus Cube: A 97g electric pump that gets a road tyre rideable in two minutes. I carry one. 5% off with code THE5KRUNNER.
Watches and sensors
- Polar H10: My daily driver for waking HRV.
- Polar Verity Sense: My backup arm-worn HR sensor.
- Nomad bedside charger: Charges my iPhone and Apple Watch overnight. I use it, and many of their bands.
- Train.Red: The best muscle oxygen sensor I’ve used.
- Tymewear: Accurate heart rate and reliable ventilatory zones. I use it to pace endurance rides over an hour.
- Garmin Forerunner 970: A pro-grade triathlon watch. I use this.
- Apple Watch Ultra 4: My daily smartwatch. No phone needed on rides.
- Garmin Fenix 9 Pro: I’ve just bought one.
On the bike
- Continental GP5000 for everyday riding, and Aero 111 on the front for special occasions.
- Helmets: Specialized S-Works Evade 3 for road riding, and Rudy Project Wing for TT-style races. I use both.
- Ravemen FR300: A front light that mounts under your Garmin or Wahoo. I use one.
- Ravemen FR1000: The light and the computer mount in one unit, so nothing else goes on the bars. Better than mine.
- Ravemen FR1500SE: 1,500 lumens hanging under your Garmin, for proper night rides.
- Ravemen FR1100SE: 1,100 lumens under your Garmin, and up to 46 hours on slow flash.
- Ravemen FR500: A brighter FR300 with the same mount.
- Wahoo TRACKR Radar: I use it on one bike and Varia on the other. They perform the same.
- Garmin Varia RTL515: Radar that warns you of cars from behind. I use this model.
- Wahoo ELEMNT Roam 3: The bike computer that’s easy to use. I use mine on most rides.
- Favero Assioma Pro RS2: Accurate power pedals that swap easily between bikes. I use this model.
Home and indoor training
- NPE Runn: Makes my basic treadmill smart, sending more accurate speed and distance to my watch and Zwift. I use it.
- Google Wifi: Keeps Zwift connected in my pain cave. I use it.
- Apple TV 4K: Zwift on the big screen. I use two.
- Google Nest Doorbell (wired, 2nd gen): My video doorbell, running in both Google Home and Apple Home. I use it.
Health, recovery and sleep
- FreeStyle Libre 3 Plus: Shows how my blood sugar responds to diet.
- hDrop: Measures my sweat loss in summer and indoors.
- Fourth Frontier Zone: Checks my heart under load in hard sessions.
- Kineon MOVE+: Red and infrared light for sore knees, Achilles and other joints after hard training. I use it.
- Oura Ring 5: My partner’s recovery tracker of choice.
- Eight Sleep: A cooling mattress cover my partner and I use nightly.
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