Dimensions
Size comparison
Pro 4 AirCore 2
| Pro 4 Air | Core 2 | Difference | |
|---|---|---|---|
| Case size | 47 mm | 49 mm | −2 mm |
| Thickness | 9.9 mm | 14.8 mm | −4.9 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Pro 4 Air better than Core 2?
- AMOLED / OLED displayYes · Core 2: No
- Screen size1.56″ vs 1.3″+20%
- Thickness9.9 mm vs 14.8 mm+50%
Why is Core 2 better than Pro 4 Air?
Core 2 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | 49 mm |
| Weight | — | 64 g |
| Thickness | 9.9 mm | 14.8 mm |
| Height | — | 49 mm |
| Width | — | 49 mm |
| Case material | Stainless steel | Plastic / polymer |
| Lens / cover glass | — | Gorilla Glas |
| Strap material | — | Silikon |
| Water resistance | — | 10 ATM |
| Water rating (maker) | — | 100 m / 10 bar / 10 ATM |
| Colours | — | Black |
| Display | ||
| Screen size | 1.56″ | 1.3″ |
| Display technology | AMOLED | — |
| Panel | AMOLED | LED |
| AMOLED / OLED display | Yes | No |
| Always-on display | Yes | — |
| Resolution (width) | 480 px | — |
| Resolution (height) | 480 px | — |
| Battery | ||
| Battery life (smartwatch mode) | 5 days | — |
| Battery capacity | 440 mAh | — |
| Battery type | — | CR3032 coin cell battery |
| Health sensors | ||
| Optical heart rate | Yes | — |
| Blood oxygen (SpO2) | Yes | — |
| ECG | Yes | — |
| Skin temperature | Yes | — |
| Temperature sensor | — | Yes |
| HRV tracking | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | heart rate, SpO2 | barometer |
| Sports & navigation | ||
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Connectivity | ||
| Bluetooth | 5.1 | — |
| Platform | ||
| Operating system | — | Suunto OS |
| Platform | — | Proprietary |
| Works with | iOS, Android | — |
| Chipset | Jieli AC7013A | — |
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