Dimensions
Size comparison
Pace 4Street X
| Pace 4 | Street X | Difference | |
|---|---|---|---|
| Height | 43.4 mm | 45 mm | −1.6 mm |
| Width | 43.4 mm | 45 mm | −1.6 mm |
| Thickness | 11.8 mm | 13.8 mm | −2 mm |
| Weight | 40 g | 48 g | −8 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Pace 4 better than Street X?
- Battery life (smartwatch mode)19 days vs 10 days+90%
- Offline mapsYes · Street X: No
- Weight40 g vs 48 g+20%
- Thickness11.8 mm vs 13.8 mm+17%
Why is Street X better than Pace 4?
- GPS battery life41 h vs 42 h+2%
- 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 | 40 g | 48 g |
| Thickness | 11.8 mm | 13.8 mm |
| Height | 43.4 mm | 45 mm |
| Width | 43.4 mm | 45 mm |
| Case material | Plastic / polymer | Plastic / polymer |
| Sapphire crystal | No | — |
| Lens / cover glass | Mineral Glass | — |
| Strap material | Silicone / Nylon | — |
| 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 | Touch Screen Always-On AMOLED Display | 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) | 19 days | 10 days |
| Battery life with always-on display | 6 days | — |
| GPS battery life | 41 h | 42 h |
| GPS battery life (dual-band) | 31 h | — |
| Battery capacity | — | 385 mAh |
| Battery type | — | Li-Pol |
| 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 | Microphone to record training logs, use voice commands, and save Voice Pins, Optical Heart Rate Monitor, Barometric Altimeter, Accelerometer, Gyroscope, 3D Compass, Thermometer ), Optical Pulse Oximeter | Barometer, Magnetometer compass, Accelerometer, Gyroscope |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | — |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | — |
| Offline maps | Yes | No |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | Yes | — |
| Sport profiles | 28 | — |
| LED flashlight | — | Yes |
| Connectivity | ||
| Wi-Fi | Wi-Fi 4 | — |
| Smart features | ||
| Microphone | Yes | — |
| Music on the watch | Yes | — |
| Storage | 4 GB | — |
| Platform | ||
| Operating system | — | Polar OS |
| Platform | Proprietary | Proprietary |
| Works with | — | Android, iOS |
