vs
7.5Display7.5
8.5Battery life9.2
4.9Health tracking8.3
6.7Sports & outdoor8.2
6.5Smart features6.5
6.6Build & durability7.7
Dimensions
Size comparison
D2 Mach 1 ProEpix Pro (Gen 2) Sapphire Edition 51mm
| D2 Mach 1 Pro | Epix Pro (Gen 2) Sapphire Edition 51mm | Difference | |
|---|---|---|---|
| Height | 51 mm | 51 mm | = |
| Width | 51 mm | 51 mm | = |
| Thickness | 15 mm | 15 mm | = |
| Weight | 126 g | 88 g | +38 g |
Drawn to the same scale from the official dimensions (front and side).
Why is D2 Mach 1 Pro better than Epix Pro (Gen 2) Sapphire Edition 51mm?
D2 Mach 1 Pro has no measurable advantages in this pair.
Why is Epix Pro (Gen 2) Sapphire Edition 51mm better than D2 Mach 1 Pro?
- Battery life (smartwatch mode)25 days vs 31 days+24%
- Weight126 g vs 88 g+43%
- Battery life with always-on display10 days vs 11 days+10%
- Sport profiles95 vs 99+4%
Specifications
Side by side
| Design & durability | ||
| Case size | 51 mm | 51 mm |
| Weight | 126 g | 88 g |
| Thickness | 15 mm | 15 mm |
| Height | 51 mm | 51 mm |
| Width | 51 mm | 51 mm |
| Case material | Titanium | Titanium |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | sapphire crystal | sapphire crystal |
| Strap material | Titanium & silicone | silicone |
| Water resistance | 10 ATM | 10 ATM |
| Water rating (maker) | 10 ATM | 10 ATM |
| Display | ||
| Screen size | 1.4″ | 1.4″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 454 px | 454 px |
| Resolution (height) | 454 px | 454 px |
| Pixel density | 324 ppi | 324 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 25 days | 31 days |
| Battery life with always-on display | 10 days | 11 days |
| Battery saver mode | 41 days | 41 days |
| GPS battery life | 82 h | 82 h |
| GPS battery life (dual-band) | 38 h | 38 h |
| Battery type | — | Lithium ion |
| Wireless charging | No | No |
| Charging | Garmin proprietary plug charger | Garmin proprietary plug charger |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | Yes |
| Skin temperature | — | 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, SatIQ technology, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer, Ambient light sensor |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | 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 | 99 |
| LED flashlight | Yes | 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 |
Related comparisons
vs
Garmin Descent Mk3i 51mmvsGarmin D2 Mach 1 Pro9.68.6vs
Garmin D2 Mach 1 ProvsSekonda Motion Plus Smart Watchvs
Garmin D2 Mach 1 ProvsSekonda Flex Smart
vs
Garmin Epix Pro (Gen 2) Sapphire Edition 51mmvsSuunto Ocean9.49.2vsGarmin Descent Mk3i 51mmvsGarmin Epix Pro (Gen 2) Sapphire Edition 51mm9.69.4vsGarmin Epix Pro (Gen 2) Sapphire Edition 51mmvsSekonda Flex Smart