vs
3.9Display4.9
Dimensions
Size comparison
U1iGo Watch 4! JW-600
| U1 | iGo Watch 4! JW-600 | Difference | |
|---|---|---|---|
| Height | 49.8 mm | 46 mm | +3.8 mm |
| Width | 42.4 mm | 10.6 mm | +31.8 mm |
| Thickness | 11.4 mm | 256 mm | −244.6 mm |
| Weight | 44 g | 34 g | +10 g |
Drawn to the same scale from the official dimensions (front and side).
Why is U1 better than iGo Watch 4! JW-600?
- Screen size1.93″ vs 1.28″+51%
- Thickness11.4 mm vs 256 mm22.5×
- Battery capacity300 mAh vs 280 mAh+7%
Why is iGo Watch 4! JW-600 better than U1?
- AMOLED / OLED displayNo · U1: Yes
- Weight43.8 g vs 33.9 g+29%
- Resolution (width)240 px vs 416 px+73%
Specifications
Side by side
| Design & durability | ||
| Case size | 50 mm | — |
| Weight | 43.8 g | 33.9 g |
| Thickness | 11.4 mm | 256 mm |
| Height | 49.8 mm | 46 mm |
| Width | 42.4 mm | 10.6 mm |
| Water resistance | 1 ATM | — |
| Colours | Black, Pink | — |
| Display | ||
| Screen size | 1.93″ | 1.28″ |
| Display technology | LCD | AMOLED |
| Panel | TFT LCD | AMOLED |
| AMOLED / OLED display | No | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | 240 px | 416 px |
| Resolution (height) | 288 px | 416 px |
| Pixel density | 194 ppi | — |
| Refresh rate | 60 Hz | — |
| Battery | ||
| Battery capacity | 300 mAh | 280 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | — |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, gyro, heart rate, SpO2 | heart rate |
| Sports & navigation | ||
| Built-in GPS | No | — |
| Connectivity | ||
| NFC payments | No | — |
| LTE (cellular) | No | — |
| eSIM | No | — |
| Bluetooth | 5.4 | 5 |
| Smart features | ||
| Speaker | Yes | Yes |
| Microphone | — | Yes |
| Platform | ||
| Operating system | Proprietary OS | — |
| Platform | Proprietary | — |
| Works with | — | iOS, Android |









