Dimensions
Size comparison
Watch 4Watch S5
| Watch 4 | Watch S5 | Difference | |
|---|---|---|---|
| Case size | 47.4 mm | 46 mm | +1.4 mm |
| Thickness | 11 mm | 11 mm | = |
| Weight | 43 g | 46 g | −3 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 4 better than Watch S5?
- Weight43 g vs 46 g+7%
Why is Watch S5 better than Watch 4?
- LTE (cellular)No · Watch 4: Yes
- eSIMNo · Watch 4: Yes
- Battery capacity646 mAh vs 815 mAh+26%
- Resolution (width)466 px vs 480 px+3%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | 46 mm |
| Weight | 43 g | 46 g |
| Thickness | 11 mm | 11 mm |
| Height | 47.4 mm | — |
| Width | 47.4 mm | — |
| Case material | — | Stainless steel |
| Sapphire crystal | Yes | — |
| Lens / cover glass | Sapphire crystal glass | Mineralglas |
| Strap material | — | Fluorelastomer |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Military-grade (MIL-STD-810) | Yes | — |
| Colours | Midnight Titanium, Evergreen Titanium | — |
| Display | ||
| Screen size | 1.5″ | 1.48″ |
| Display technology | AMOLED | AMOLED |
| Panel | LTPO AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | — | 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) | — | 21 days |
| Battery capacity | 646 mAh | 815 mAh |
| Battery type | Si/C | Li-Po |
| Wireless charging | No | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Skin temperature | Yes | Yes |
| Temperature sensor | Yes | — |
| Sleep tracking | — | 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, QZSS |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | No | Yes |
| eSIM | No | Yes |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5.2 | 5.4 |
| Smart features | ||
| Calls from the wrist | — | Yes |
| Speaker | Yes | Yes |
| Microphone | — | Yes |
| Storage | 32 GB | — |
| RAM | 2 GB | — |
| Platform | ||
| Operating system | OxygenOS Watch 8 + Wear OS 7.0 | HyperOS 3 |
| Platform | Wear OS | Proprietary |
| Works with | — | iOS, Android |
| Chipset | Qualcomm Snapdragon W5 Gen 1 | — |
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