Dimensions
Size comparison
U1100
| U1 | 100 | Difference | |
|---|---|---|---|
| Height | 49.8 mm | 114.3 mm | −64.5 mm |
| Width | 42.4 mm | 50 mm | −7.6 mm |
| Thickness | 11.4 mm | 14.3 mm | −2.9 mm |
| Weight | 44 g | 73 g | −29 g |
Drawn to the same scale from the official dimensions (front and side).
Why is U1 better than 100?
- Weight43.8 g vs 73 g+67%
- Resolution (width)240 px vs 128 px+88%
- Screen size1.93″ vs 1.77″+9%
- Pixel density194 ppi vs 116 ppi+67%
- Thickness11.4 mm vs 14.3 mm+25%
Why is 100 better than U1?
- Battery capacity300 mAh vs 800 mAh2.7×
Specifications
Side by side
| Design & durability | ||
| Case size | 50 mm | — |
| Weight | 43.8 g | 73 g |
| Thickness | 11.4 mm | 14.3 mm |
| Height | 49.8 mm | 114.3 mm |
| Width | 42.4 mm | 50 mm |
| Water resistance | 1 ATM | — |
| Colours | Black, Pink | Gray, Red, Green |
| Display | ||
| Screen size | 1.93″ | 1.77″ |
| Display technology | LCD | LCD |
| Panel | TFT LCD | TFT |
| AMOLED / OLED display | No | No |
| Resolution (width) | 240 px | 128 px |
| Resolution (height) | 288 px | 160 px |
| Pixel density | 194 ppi | 116 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 300 mAh | 800 mAh |
| Battery type | — | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | — |
| Blood oxygen (SpO2) | Yes | — |
| Sensors | Accelerometer, gyro, heart rate, SpO2 | — |
| Sports & navigation | ||
| Built-in GPS | No | No |
| Connectivity | ||
| NFC payments | No | No |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Bluetooth | 5.4 | — |
| Smart features | ||
| Speaker | Yes | Yes |
| Platform | ||
| Operating system | Proprietary OS | — |
| Platform | Proprietary | — |
| Chipset | — | Unisoc 6533G |
