vs
7.8Display7.9
8.2Health tracking8.6
4.7Sports & outdoor8.0
8.4Smart features7.4
5.8Build & durability9.3
Dimensions
Size comparison
Watch X3Galaxy Watch Ultra 2025
| Watch X3 | Galaxy Watch Ultra 2025 | Difference | |
|---|---|---|---|
| Height | 47.4 mm | 47.4 mm | = |
| Width | 47.4 mm | 47.1 mm | +0.3 mm |
| Thickness | 11 mm | 12.1 mm | −1.1 mm |
| Weight | 43 g | 61 g | −18 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch X3 better than Galaxy Watch Ultra 2025?
- Battery life (smartwatch mode)5 days vs 2.5 days2×
- Wi-FiWi-Fi 4 vs Wi-Fi 14×
- Weight43 g vs 61 g+42%
- Thickness11 mm vs 12.1 mm+10%
- Battery capacity646 mAh vs 590 mAh+9%
Why is Galaxy Watch Ultra 2025 better than Watch X3?
- Water resistance5 ATM vs 10 ATM2×
- Wireless chargingNo · Watch X3: Yes
- Storage32 GB vs 64 GB2×
- Resolution (width)466 px vs 480 px+3%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | 47 mm |
| Weight | 43 g | 61 g |
| Thickness | 11 mm | 12.1 mm |
| Height | 47.4 mm | 47.4 mm |
| Width | 47.4 mm | 47.1 mm |
| Case material | Titanium | Titanium |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | Sapphire crystal glass | Saphirglas Saphirglas |
| Strap material | Fluorelastomer | Silikon |
| Water resistance | 5 ATM | 10 ATM |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Water rating (maker) | 50 m / 5 bar / 5 ATM | 100 m / 10 bar / 10 ATM |
| Military-grade (MIL-STD-810) | Yes | Yes |
| Colours | Black, Titanium | — |
| Display | ||
| Screen size | 1.5″ | 1.5″ |
| Display technology | AMOLED | AMOLED |
| Panel | LTPO AMOLED | Super AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | — |
| Resolution (width) | 466 px | 480 px |
| Resolution (height) | 466 px | 480 px |
| Pixel density | 310 ppi | — |
| Peak brightness | 3,000 nits | — |
| LTPO display | Yes | — |
| Refresh rate | 60 Hz | — |
| Battery | ||
| Battery life (smartwatch mode) | 5 days | 2.5 days |
| Battery life (hours) | — | 60 h |
| Battery capacity | 646 mAh | 590 mAh |
| Battery type | Si/C | Li-Po |
| Wireless charging | No | Yes |
| Charging | Schnellladefunktion, magnetische Ladeschale | kabellos, magnetisches Ladekabel, magnetische Ladeschale |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | Yes |
| Skin temperature | Yes | Yes |
| Temperature sensor | Yes | — |
| HRV tracking | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | Accelerometer, gyro, barometer, compass, heart rate, SpO2, thermometer (skin temperature) | heart rate, SpO2, barometer, accelerometer, ambient light |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | — |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | GPS, GLONASS, GALILEO, BDS |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | — |
| Multisport / triathlon mode | — | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | Yes | Yes |
| eSIM | Yes | — |
| Wi-Fi | Wi-Fi 4 | Wi-Fi 1 |
| Bluetooth | 5.2 | 5.3 |
| Smart features | ||
| Speaker | Yes | — |
| Voice assistant | — | Yes |
| Music on the watch | Yes | Yes |
| Storage | 32 GB | 64 GB |
| RAM | 2 GB | 2 GB |
| Platform | ||
| Operating system | ColorOS Watch 8.0 + Wear OS 6.0 | wear OS 6, One UI 8 |
| Platform | Wear OS | Wear OS |
| Works with | Android | Android |
| Chipset | Qualcomm Snapdragon W5 Gen 1 | Exynos W1000 |
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