vs
6.5Display6.0
3.2Battery life2.9
8.3Health tracking4.9
6.1Sports & outdoor5.4
3.7Build & durability9.4
Dimensions
Size comparison
D2 Air X15Descent G2
| D2 Air X15 | Descent G2 | Difference | |
|---|---|---|---|
| Height | 45 mm | 45.5 mm | −0.5 mm |
| Width | 45 mm | 45.5 mm | −0.5 mm |
| Thickness | 12.5 mm | 15.2 mm | −2.7 mm |
| Weight | 38 g | 65 g | −27 g |
Drawn to the same scale from the official dimensions (front and side).
Why is D2 Air X15 better than Descent G2?
- Weight38 g vs 65 g+71%
- Battery saver mode25 days vs 12 days2.1×
- Storage8 GB vs 4 GB2×
- Screen size1.4″ vs 1.2″+17%
- Thickness12.5 mm vs 15.2 mm+22%
- Resolution (width)454 px vs 390 px+16%
Why is Descent G2 better than D2 Air X15?
- Water resistance5 ATM vs 10 ATM2×
- Sapphire crystalNo · D2 Air X15: Yes
Specifications
Side by side
| Design & durability | ||
| Case size | 45 mm | 46 mm |
| Weight | 38 g | 65 g |
| Thickness | 12.5 mm | 15.2 mm |
| Height | 45 mm | 45.5 mm |
| Width | 45 mm | 45.5 mm |
| Case material | Stainless steel | Plastic / polymer |
| Sapphire crystal | No | Yes |
| Lens / cover glass | Corning® Gorilla® Glass 3 | sapphire crystal |
| Strap material | silicone | silicone |
| Water resistance | 5 ATM | 10 ATM |
| Water rating (maker) | 5 ATM | Dive (100 meters) |
| Rated dive depth | — | 100 m |
| Display | ||
| Screen size | 1.4″ | 1.2″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | — |
| Touchscreen | Yes | Yes |
| Resolution (width) | 454 px | 390 px |
| Resolution (height) | 454 px | 390 px |
| Pixel density | 324 ppi | 325 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | 10 days |
| Battery life with always-on display | 4 days | 4 days |
| Battery saver mode | 25 days | 12 days |
| GPS battery life | 20 h | 20 h |
| GPS battery life (dual-band) | 17 h | — |
| Battery type | Lithium ion | — |
| Wireless charging | No | No |
| Charging | Garmin proprietary plug charger | Garmin proprietary clip charger |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Skin temperature | Yes | — |
| Temperature sensor | Yes | Yes |
| HRV tracking | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | GPS, GLONASS, Galileo, QZSS, BeiDou, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer, Ambient light sensor | GPS, GLONASS, Galileo, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer, Depth sensor |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | — |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | Yes | Yes |
| Sport profiles | 93 | 93 |
| Dive mode | — | Yes |
| LED flashlight | Yes | — |
| Connectivity | ||
| NFC payments | Yes | Yes |
| Wi-Fi | Wi-Fi 4 | — |
| ANT+ sensors | Yes | Yes |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | — |
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Music on the watch | Yes | — |
| Storage | 8 GB | 4 GB |
| Third-party apps | Yes | Yes |
| Platform | ||
| Operating system | Garmin OS | Garmin OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | iOS, Android |
