vs
6.6Display5.9
9.5Health tracking9.6
8.0Sports & outdoor8.0
7.6Smart features9.0
9.0Build & durability6.2
Dimensions
Size comparison
Watch SE 3Watch X3 Mini
| Watch SE 3 | Watch X3 Mini | Difference | |
|---|---|---|---|
| Height | 44 mm | 43.2 mm | +0.8 mm |
| Width | 38 mm | 43.2 mm | −5.2 mm |
| Thickness | 10.7 mm | 11.2 mm | −0.5 mm |
| Weight | 26 g | 40 g | −14 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch SE 3 better than Watch X3 Mini?
- Weight26.4 g vs 40.4 g+53%
- Screen size1.78″ vs 1.32″+35%
- Wireless chargingYes · Watch X3 Mini: No
- Charged in 30 min53% vs 50%+6%
- Thickness10.7 mm vs 11.2 mm+5%
Why is Watch X3 Mini better than Watch SE 3?
- Pixel density326 ppi vs 499 ppi+53%
- Resolution (width)368 px vs 466 px+27%
Specifications
Side by side
| Design & durability | ||
| Case size | 44 mm | 43 mm |
| Weight | 26.4 g | 40.4 g |
| Thickness | 10.7 mm | 11.2 mm |
| Height | 44 mm | 43.2 mm |
| Width | 38 mm | 43.2 mm |
| Case material | Aluminium | Stainless steel |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | Ion-X strengthened glass (2025 gen) | Sapphire crystal glass |
| Strap material | Fluorelastomer | — |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | — | IP68 |
| Water resistance (IPx) | — | IPx8 |
| Colours | Midnight, Starlight | High-gloss Gold, Starlight Silver, Mocha Brown |
| Display | ||
| Screen size | 1.78″ | 1.32″ |
| Display technology | OLED | AMOLED |
| Panel | Retina LTPO OLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | 368 px | 466 px |
| Resolution (height) | 448 px | 466 px |
| Pixel density | 326 ppi | 499 ppi |
| Peak brightness | 1,000 nits | 1,000 nits |
| LTPO display | Yes | — |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 0.8 days | — |
| Battery life (hours) | 18 h | — |
| Battery capacity | — | 354 mAh |
| Battery type | Li-Ion | Li-Po |
| Wireless charging | Yes | No |
| Charged in 30 min | 53% | 50% |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| ECG | Yes | — |
| Skin temperature | Yes | Yes |
| Temperature sensor | Yes | Yes |
| Sleep tracking | Yes | — |
| Sensors | Accelerometer, gyro, heart rate (2nd gen), barometer, always-on altimeter, compass, temperature (body) | Accelerometer, gyro, barometer, compass, heart rate, SpO2, thermometer (skin temperature) |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO, QZSS | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | Yes | Yes |
| eSIM | Yes | Yes |
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 5.3 | 5.2 |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | Yes |
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Music on the watch | Yes | — |
| Storage | 64 GB | — |
| Platform | ||
| Operating system | watchOS 26 | ColorOS Watch 16.0 |
| Platform | watchOS | Proprietary |
| Works with | iOS | — |
| Chipset | Apple S10 | Qualcomm Snapdragon W5 |
