vs
7.5Display8.3
9.4Battery life5.1
8.3Health tracking8.3
8.2Sports & outdoor2.9
6.0Build & durability8.6
Dimensions
Size comparison
Fenix 8 51mm AMOLEDGrit X2 Pro Titan
| Fenix 8 51mm AMOLED | Grit X2 Pro Titan | Difference | |
|---|---|---|---|
| Height | 51 mm | 48.6 mm | +2.4 mm |
| Width | 51 mm | 48.6 mm | +2.4 mm |
| Thickness | 14.7 mm | 13.4 mm | +1.3 mm |
| Weight | 102 g | 64 g | +38 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Fenix 8 51mm AMOLED better than Grit X2 Pro Titan?
- Battery life (smartwatch mode)29 days vs 11 days2.6×
- GPS battery life84 h vs 40 h2.1×
- LED flashlightYes · Grit X2 Pro Titan: No
Why is Grit X2 Pro Titan better than Fenix 8 51mm AMOLED?
- Weight102 g vs 64 g+59%
- Thickness14.7 mm vs 13.4 mm+10%
Specifications
Side by side
| Design & durability | ||
| Case size | 51 mm | 49 mm |
| Weight | 102 g | 64 g |
| Thickness | 14.7 mm | 13.4 mm |
| Height | 51 mm | 48.6 mm |
| Width | 51 mm | 48.6 mm |
| Case material | Titanium | Titanium |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | Corning® Gorilla® Glass or sapphire crystal | — |
| Strap material | silicone | — |
| Water resistance | 10 ATM | 10 ATM |
| Water rating (maker) | 10 ATM | WR100 |
| Rated dive depth | 40 m | — |
| Military-grade (MIL-STD-810) | — | Yes |
| Colours | — | Titan |
| Display | ||
| Screen size | 1.4″ | 1.39″ |
| 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 | 327 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 29 days | 11 days |
| Battery life with always-on display | 13 days | — |
| Battery saver mode | 41 days | — |
| GPS battery life | 84 h | 40 h |
| GPS battery life (dual-band) | 62 h | — |
| Battery capacity | — | 488 mAh |
| Battery type | Lithium ion | Li-Pol |
| Wireless charging | No | — |
| Charging | 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, QZSS, BeiDou, SatIQ technology, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer, Ambient light sensor, Depth sensor | Barometer, Magnetometer compass, Accelerometer, Gyroscope |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | — |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | — |
| Offline maps | Yes | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | Yes | — |
| Sport profiles | 99 | — |
| Dive mode | Yes | — |
| LED flashlight | Yes | No |
| Connectivity | ||
| NFC payments | Yes | — |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | — | 5.1 |
| ANT+ sensors | Yes | — |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | — |
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Music on the watch | Yes | — |
| Storage | 32 GB | 32 GB |
| Third-party apps | Yes | — |
| Platform | ||
| Operating system | Garmin OS | Polar OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | — |
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