Garmin Epix Pro (Gen 2) Sapphire Edition 47mm vs Garmin Epix Pro (Gen 2) Sapphire Edition 51mm
What Epix Pro (Gen 2) Sapphire Edition 47mm does better (2) and where Epix Pro (Gen 2) Sapphire Edition 51mm wins (7) — every spec side by side.
vs
5.7Display7.5
5.8Battery life9.2
8.3Health tracking8.3
8.2Sports & outdoor8.2
6.5Smart features6.5
8.8Build & durability7.7
Dimensions
Size comparison
Epix Pro (Gen 2) Sapphire Edition 47mmEpix Pro (Gen 2) Sapphire Edition 51mm
| Epix Pro (Gen 2) Sapphire Edition 47mm | Epix Pro (Gen 2) Sapphire Edition 51mm | Difference | |
|---|---|---|---|
| Height | 47 mm | 51 mm | −4 mm |
| Width | 47 mm | 51 mm | −4 mm |
| Thickness | 14.6 mm | 15 mm | −0.4 mm |
| Weight | 70 g | 88 g | −18 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Epix Pro (Gen 2) Sapphire Edition 47mm better than Epix Pro (Gen 2) Sapphire Edition 51mm?
- Weight70 g vs 88 g+26%
- Thickness14.6 mm vs 15 mm+3%
Why is Epix Pro (Gen 2) Sapphire Edition 51mm better than Epix Pro (Gen 2) Sapphire Edition 47mm?
- Battery life (smartwatch mode)16 days vs 31 days+94%
- GPS battery life42 h vs 82 h+95%
- Battery saver mode21 days vs 41 days+95%
- GPS battery life (dual-band)20 h vs 38 h+90%
- Battery life with always-on display6 days vs 11 days+83%
- Screen size1.3″ vs 1.4″+8%
- Resolution (width)416 px vs 454 px+9%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | 51 mm |
| Weight | 70 g | 88 g |
| Thickness | 14.6 mm | 15 mm |
| Height | 47 mm | 51 mm |
| Width | 47 mm | 51 mm |
| Case material | Titanium | Titanium |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | sapphire crystal | sapphire crystal |
| Strap material | silicone | silicone |
| Water resistance | 10 ATM | 10 ATM |
| Water rating (maker) | 10 ATM | 10 ATM |
| Display | ||
| Screen size | 1.3″ | 1.4″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 416 px | 454 px |
| Resolution (height) | 416 px | 454 px |
| Pixel density | 320 ppi | 324 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 16 days | 31 days |
| Battery life with always-on display | 6 days | 11 days |
| Battery saver mode | 21 days | 41 days |
| GPS battery life | 42 h | 82 h |
| GPS battery life (dual-band) | 20 h | 38 h |
| Battery type | Lithium ion | 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 | 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 | 99 | 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 Epix Pro (Gen 2) Sapphire Edition 47mmvsPolar Grit X2 Pro Titan7.26.9vs
Garmin Epix Pro (Gen 2) Sapphire Edition 47mmvsGarmin Quatix 7 Pro7.27.6
vs
Garmin Epix Pro (Gen 2) Sapphire Edition 51mmvsSuunto Ocean9.49.2
vsGarmin Descent Mk3i 51mmvsGarmin Epix Pro (Gen 2) Sapphire Edition 51mm9.69.4vs
Garmin Epix Pro (Gen 2) Sapphire Edition 51mmvsSekonda Flex Smartvs
Garmin Epix Pro (Gen 2) Sapphire Edition 51mmvsSekonda Motion Plus Smart Watch