vs
2.4Display3.4
3.8Battery life7.5
3.7Build & durability9.2
Dimensions
Size comparison
Forerunner 559 Peak Pro
| Forerunner 55 | 9 Peak Pro | Difference | |
|---|---|---|---|
| Height | 42 mm | 43 mm | −1 mm |
| Width | 42 mm | 43 mm | −1 mm |
| Thickness | 11.6 mm | 10.3 mm | +1.3 mm |
| Weight | 37 g | 64 g | −27 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Forerunner 55 better than 9 Peak Pro?
- Weight37 g vs 64 g+73%
Why is 9 Peak Pro better than Forerunner 55?
- GPS battery life20 h vs 40 h2×
- Battery life (smartwatch mode)14 days vs 21 days+50%
- Water resistance5 ATM vs 10 ATM2×
- Sport profiles15 vs 956.3×
- Sapphire crystalNo · Forerunner 55: Yes
- Screen size1.04″ vs 1.2″+15%
- Resolution (width)208 px vs 240 px+15%
- Thickness11.6 mm vs 10.3 mm+13%
Specifications
Side by side
| Design & durability | ||
| Case size | 42 mm | 43 mm |
| Weight | 37 g | 64 g |
| Thickness | 11.6 mm | 10.3 mm |
| Height | 42 mm | 43 mm |
| Width | 42 mm | 43 mm |
| Case material | — | Stainless steel |
| Sapphire crystal | No | Yes |
| Lens / cover glass | chemically strengthened glass | Saphirglas |
| Strap material | silicone | Silicone |
| Water resistance | 5 ATM | 10 ATM |
| Water rating (maker) | 5 ATM | 100 m / 10 bar / 10 ATM |
| Display | ||
| Screen size | 1.04″ | 1.2″ |
| Display technology | Memory-in-pixel (transflective) | LCD |
| Panel | Sunlight-visible, transflective memory-in-pixel | LCD |
| AMOLED / OLED display | No | No |
| Always-on display | Yes | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | 208 px | 240 px |
| Resolution (height) | 208 px | 240 px |
| Pixel density | 200 ppi | 200 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 14 days | 21 days |
| GPS battery life | 20 h | 40 h |
| Battery type | — | Li-Ion |
| Wireless charging | No | — |
| Charging | Garmin proprietary plug charger | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Temperature sensor | — | Yes |
| HRV tracking | — | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | GPS, GLONASS, Galileo, Elevate wrist heart rate monitor, Accelerometer | heart rate, SpO2, accelerometer |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | — | No |
| Satellite systems | GLONASS, GALILEO | GPS, GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Multisport / triathlon mode | — | Yes |
| Sport profiles | 15 | 95 |
| Dive mode | — | Yes |
| Connectivity | ||
| ANT+ sensors | Yes | — |
| Smart features | ||
| Storage | 0.03 GB | — |
| Third-party apps | Yes | — |
| Platform | ||
| Operating system | Garmin OS | Suunto OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | iOS, Android |
