vs
7.5Display8.4
9.4Battery life7.8
8.3Health tracking4.9
8.2Sports & outdoor6.4
6.0Build & durability8.0
Dimensions
Size comparison
Fenix 8 51mm AMOLEDOcean
| Fenix 8 51mm AMOLED | Ocean | Difference | |
|---|---|---|---|
| Height | 51 mm | 49.9 mm | +1.1 mm |
| Width | 51 mm | 49.9 mm | +1.1 mm |
| Thickness | 14.7 mm | 13.3 mm | +1.4 mm |
| Weight | 102 g | 99 g | +3 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Fenix 8 51mm AMOLED better than Ocean?
- Battery life (smartwatch mode)29 days vs 16 days+81%
- GPS battery life84 h vs 65 h+29%
- GPS battery life (dual-band)62 h vs 50 h+24%
- Sport profiles99 vs 95+4%
Why is Ocean better than Fenix 8 51mm AMOLED?
- Weight102 g vs 99 g+3%
- Screen size1.4″ vs 1.43″+2%
- Rated dive depth40 m vs 60 m+50%
- Thickness14.7 mm vs 13.3 mm+11%
- Resolution (width)454 px vs 466 px+3%
Specifications
Side by side
| Design & durability | ||
| Case size | 51 mm | 50 mm |
| Weight | 102 g | 99 g |
| Thickness | 14.7 mm | 13.3 mm |
| Height | 51 mm | 49.9 mm |
| Width | 51 mm | 49.9 mm |
| Case material | Titanium | Stainless steel |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | Corning® Gorilla® Glass or sapphire crystal | Saphirglas Saphirglas |
| Strap material | silicone | Silikon |
| Water resistance | 10 ATM | 10 ATM |
| Water rating (maker) | 10 ATM | 100 m |
| Rated dive depth | 40 m | 60 m |
| Colours | — | Black |
| Display | ||
| Screen size | 1.4″ | 1.43″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | — | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 454 px | 466 px |
| Resolution (height) | 454 px | 466 px |
| Pixel density | 324 ppi | 326 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 29 days | 16 days |
| Battery life with always-on display | 13 days | — |
| Battery saver mode | 41 days | — |
| GPS battery life | 84 h | 65 h |
| GPS battery life (dual-band) | 62 h | 50 h |
| Battery type | Lithium ion | rechargeable lithium-ion |
| Wireless charging | No | — |
| Charging | Garmin proprietary plug charger | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Skin temperature | 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 | heart rate |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | GPS |
| Offline maps | Yes | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | Yes | Yes |
| Sport profiles | 99 | 95 |
| Dive mode | Yes | Yes |
| LED flashlight | Yes | — |
| Connectivity | ||
| NFC payments | Yes | — |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | — | 5 |
| ANT+ sensors | Yes | — |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | — |
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Music on the watch | Yes | Yes |
| Storage | 32 GB | 32 GB |
| Third-party apps | Yes | — |
| Platform | ||
| Operating system | Garmin OS | Suunto OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | — |
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