vs
5.0Display4.1
4.9Battery life7.2
4.9Health tracking4.9
5.1Sports & outdoor4.8
6.5Smart features6.5
8.8Build & durability8.2
Dimensions
Size comparison
D2 Mach 1Descent Mk2i
| D2 Mach 1 | Descent Mk2i | Difference | |
|---|---|---|---|
| Height | 47 mm | 52 mm | −5 mm |
| Width | 47 mm | 52 mm | −5 mm |
| Thickness | 14.5 mm | 17.8 mm | −3.3 mm |
| Weight | 70 g | 100 g | −30 g |
Drawn to the same scale from the official dimensions (front and side).
Why is D2 Mach 1 better than Descent Mk2i?
- AMOLED / OLED displayYes · Descent Mk2i: No
- Weight70 g vs 99.6 g+42%
- Pixel density320 ppi vs 200 ppi+60%
- Resolution (width)416 px vs 280 px+49%
- Thickness14.5 mm vs 17.8 mm+23%
Why is Descent Mk2i better than D2 Mach 1?
- Battery life (smartwatch mode)11 days vs 16 days+45%
- GPS battery life42 h vs 48 h+14%
- Battery saver mode21 days vs 50 days2.4×
- Screen size1.3″ vs 1.4″+8%
- Sport profiles41 vs 44+7%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | 52 mm |
| Weight | 70 g | 99.6 g |
| Thickness | 14.5 mm | 17.8 mm |
| Height | 47 mm | 52 mm |
| Width | 47 mm | 52 mm |
| Case material | Titanium | Titanium |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | sapphire crystal | sapphire crystal |
| Strap material | Leather version: Italian leather & silicone Titanium version: 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 | 1.3″ | 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 | Yes |
| Touchscreen | Yes | — |
| Resolution (width) | 416 px | 280 px |
| Resolution (height) | 416 px | 280 px |
| Pixel density | 320 ppi | 200 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 11 days | 16 days |
| Battery life with always-on display | 4 days | — |
| Battery saver mode | 21 days | 50 days |
| GPS battery life | 42 h | 48 h |
| GPS battery life (dual-band) | 20 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 |
| Temperature sensor | Yes | Yes |
| HRV tracking | 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 | 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 | 41 | 44 |
| Dive mode | — | 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 |
