vs
5.3Display6.4
2.9Battery life5.0
4.9Health tracking9.8
4.7Sports & outdoor2.4
3.1Build & durability4.2
Dimensions
Size comparison
Forerunner 170Street X
| Forerunner 170 | Street X | Difference | |
|---|---|---|---|
| Height | 42.6 mm | 45 mm | −2.4 mm |
| Width | 42.6 mm | 45 mm | −2.4 mm |
| Thickness | 11.9 mm | 13.8 mm | −1.9 mm |
| Weight | 41 g | 48 g | −7 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Forerunner 170 better than Street X?
- Weight41 g vs 48 g+17%
- Thickness11.9 mm vs 13.8 mm+16%
Why is Street X better than Forerunner 170?
- GPS battery life20 h vs 42 h2.1×
- Screen size1.2″ vs 1.28″+7%
- Resolution (width)390 px vs 416 px+7%
Specifications
Side by side
| Design & durability | ||
| Case size | 43 mm | 45 mm |
| Weight | 41 g | 48 g |
| Thickness | 11.9 mm | 13.8 mm |
| Height | 42.6 mm | 45 mm |
| Width | 42.6 mm | 45 mm |
| Case material | Plastic / polymer | Plastic / polymer |
| Sapphire crystal | No | — |
| Lens / cover glass | chemically strengthened glass | — |
| Strap material | silicone | — |
| Water resistance | 5 ATM | 5 ATM |
| Water rating (maker) | 5 ATM | WR50 |
| Military-grade (MIL-STD-810) | — | Yes |
| Colours | — | Night Black, Snow White, Forest Green |
| Display | ||
| Screen size | 1.2″ | 1.28″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | — |
| Touchscreen | Yes | Yes |
| Resolution (width) | 390 px | 416 px |
| Resolution (height) | 390 px | 416 px |
| Pixel density | 325 ppi | 325 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | 10 days |
| Battery life with always-on display | 4 days | — |
| Battery saver mode | 19 days | — |
| GPS battery life | 20 h | 42 h |
| Battery capacity | — | 385 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 | — |
| Skin temperature | — | Yes |
| Temperature sensor | Yes | Yes |
| HRV tracking | Yes | Yes |
| Sleep tracking | Yes | 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 | Barometer, Magnetometer compass, Accelerometer, Gyroscope |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO | — |
| Offline maps | — | No |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Sport profiles | 78 | — |
| LED flashlight | — | Yes |
| Connectivity | ||
| NFC payments | Yes | — |
| ANT+ sensors | Yes | — |
| Smart features | ||
| Storage | 4 GB | — |
| Third-party apps | Yes | — |
| Platform | ||
| Operating system | Garmin OS | Polar OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | Android, iOS |
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