vs
5.3Display9.1
Why is Forerunner 170 better than R9?
- Battery life (smartwatch mode)10 days vs 2 days5×
- Resolution (width)390 px vs 360 px+8%
Why is R9 better than Forerunner 170?
- Screen size1.2″ vs 1.43″+19%
Specifications
Side by side
| Design & durability | ||
| Case size | 43 mm | — |
| Weight | 41 g | — |
| Thickness | 11.9 mm | — |
| Height | 42.6 mm | — |
| Width | 42.6 mm | — |
| Case material | Plastic / polymer | — |
| Sapphire crystal | No | — |
| Lens / cover glass | chemically strengthened glass | — |
| Strap material | silicone | — |
| Water resistance | 5 ATM | — |
| Water rating (maker) | 5 ATM | — |
| Colours | — | Black |
| Display | ||
| Screen size | 1.2″ | 1.43″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | — |
| Touchscreen | Yes | — |
| Resolution (width) | 390 px | 360 px |
| Resolution (height) | 390 px | 360 px |
| Pixel density | 325 ppi | — |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | 2 days |
| Battery life with always-on display | 4 days | — |
| Battery saver mode | 19 days | — |
| GPS battery life | 20 h | — |
| Battery capacity | — | 670 mAh |
| Battery type | Lithium ion | Li-Po |
| 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 | — |
| Sensors | GPS, GLONASS, Galileo, 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 | — |
| Satellite systems | GLONASS, GALILEO | — |
| Barometric altimeter | Yes | — |
| Compass | Yes | — |
| Sport profiles | 78 | — |
| Connectivity | ||
| NFC payments | Yes | — |
| LTE (cellular) | — | Yes |
| ANT+ sensors | Yes | — |
| Smart features | ||
| Storage | 4 GB | — |
| Third-party apps | Yes | — |
| Platform | ||
| Operating system | Garmin OS | — |
| Platform | Proprietary | — |
| Works with | iOS, Android | — |
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