vs
7.5Display4.1
8.5Battery life7.2
4.9Health tracking4.9
6.7Sports & outdoor4.8
6.5Smart features6.5
6.6Build & durability8.2
Dimensions
Size comparison
D2 Mach 1 ProDescent Mk2i
| D2 Mach 1 Pro | Descent Mk2i | Difference | |
|---|---|---|---|
| Height | 51 mm | 52 mm | −1 mm |
| Width | 51 mm | 52 mm | −1 mm |
| Thickness | 15 mm | 17.8 mm | −2.8 mm |
| Weight | 126 g | 100 g | +26 g |
Drawn to the same scale from the official dimensions (front and side).
Why is D2 Mach 1 Pro better than Descent Mk2i?
- Battery life (smartwatch mode)25 days vs 16 days+56%
- GPS battery life82 h vs 48 h+71%
- AMOLED / OLED displayYes · Descent Mk2i: No
- Sport profiles95 vs 442.2×
- Resolution (width)454 px vs 280 px+62%
- Pixel density324 ppi vs 200 ppi+62%
- Thickness15 mm vs 17.8 mm+19%
Why is Descent Mk2i better than D2 Mach 1 Pro?
- Weight126 g vs 99.6 g+27%
- Battery saver mode41 days vs 50 days+22%
Specifications
Side by side
| Design & durability | ||
| Case size | 51 mm | 52 mm |
| Weight | 126 g | 99.6 g |
| Thickness | 15 mm | 17.8 mm |
| Height | 51 mm | 52 mm |
| Width | 51 mm | 52 mm |
| Case material | Titanium | Titanium |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | sapphire crystal | sapphire crystal |
| Strap material | Titanium & silicone | silicone or titanium |
| Water resistance | 10 ATM | 10 ATM |
| Water rating (maker) | 10 ATM | Dive (100 meters) |
| Rated dive depth | — | 100 m |
| Display | ||
| Screen size | 1.4″ | 1.4″ |
| Display technology | AMOLED | Memory-in-pixel (transflective) |
| Panel | AMOLED | Sunlight-visible, transflective memory-in-pixel |
| AMOLED / OLED display | Yes | No |
| Always-on display | — | Yes |
| Touchscreen | Yes | — |
| Resolution (width) | 454 px | 280 px |
| Resolution (height) | 454 px | 280 px |
| Pixel density | 324 ppi | 200 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 25 days | 16 days |
| Battery life with always-on display | 10 days | — |
| Battery saver mode | 41 days | 50 days |
| GPS battery life | 82 h | 48 h |
| GPS battery life (dual-band) | 38 h | — |
| 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 | — |
| Temperature sensor | Yes | Yes |
| HRV tracking | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | GPS, GLONASS, Galileo, SatIQ technology, 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 | GLONASS, GALILEO |
| Offline maps | Yes | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | Yes | Yes |
| Sport profiles | 95 | 44 |
| Dive mode | — | Yes |
| LED flashlight | Yes | — |
| Connectivity | ||
| NFC payments | Yes | Yes |
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| ANT+ sensors | Yes | Yes |
| Smart features | ||
| Music on the watch | Yes | Yes |
| Storage | 32 GB | 32 GB |
| Third-party apps | Yes | Yes |
| Platform | ||
| Operating system | Garmin OS | Garmin OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | iOS, Android |
