Dimensions
Size comparison
D2 Air7
| D2 Air | 7 | Difference | |
|---|---|---|---|
| Height | 43.2 mm | 50 mm | −6.8 mm |
| Width | 43.2 mm | 50 mm | −6.8 mm |
| Thickness | 12.4 mm | 15.3 mm | −2.9 mm |
| Weight | 46 g | 52 g | −6 g |
Drawn to the same scale from the official dimensions (front and side).
Why is D2 Air better than 7?
- GPS battery life20 h vs 12 h+67%
- Weight46.3 g vs 51.9 g+12%
- Thickness12.4 mm vs 15.3 mm+23%
Why is 7 better than D2 Air?
- Sport profiles16 vs 704.4×
- Resolution (width)390 px vs 454 px+16%
Specifications
Side by side
| Design & durability | ||
| Case size | 43 mm | 50 mm |
| Weight | 46.3 g | 51.9 g |
| Thickness | 12.4 mm | 15.3 mm |
| Height | 43.2 mm | 50 mm |
| Width | 43.2 mm | 50 mm |
| Case material | Stainless steel | Titanium |
| Sapphire crystal | No | — |
| Lens / cover glass | Corning® Gorilla® Glass 3 | Gorilla glass |
| Strap material | silicone and leather | Microfiber textile |
| Water resistance | — | 5 ATM |
| Water rating (maker) | — | 50 m |
| Display | ||
| Screen size | 1.2″ | — |
| Display technology | — | AMOLED |
| AMOLED / OLED display | — | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | 390 px | 454 px |
| Resolution (height) | 390 px | 454 px |
| Pixel density | 325 ppi | — |
| Battery | ||
| Battery life (smartwatch mode) | 5 days | — |
| GPS battery life | 20 h | 12 h |
| Battery type | — | rechargeable lithium-ion |
| Wireless charging | No | — |
| Charging | Garmin proprietary plug charger | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | — |
| Temperature sensor | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | GPS, GLONASS, Galileo, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer, Ambient light sensor | Optical HR, Barometer, Compass, Thermometer |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO | GPS, GLONASS, BeiDou, QZSS |
| Offline maps | — | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Sport profiles | 16 | 70 |
| Connectivity | ||
| NFC payments | Yes | Yes |
| Wi-Fi | Wi-Fi 4 | — |
| ANT+ sensors | Yes | — |
| Smart features | ||
| Music on the watch | Yes | — |
| Third-party apps | Yes | — |
| Platform | ||
| Operating system | Garmin OS | Wear OS |
| Platform | Proprietary | Wear OS |
| Works with | iOS, Android | — |
