Dimensions
Size comparison
Watch 4Watch S
| Watch 4 | Watch S | Difference | |
|---|---|---|---|
| Height | 47.4 mm | 45 mm | +2.4 mm |
| Width | 47.4 mm | 45 mm | +2.4 mm |
| Thickness | 11 mm | 8.9 mm | +2.1 mm |
| Weight | 43 g | 35 g | +8 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 4 better than Watch S?
- Wi-FiWi-Fi 4 vs Wi-Fi 14×
- Storage32 GB vs 4 GB8×
- Battery capacity646 mAh vs 339 mAh+91%
- Screen size1.5″ vs 1.46″+3%
Why is Watch S better than Watch 4?
- Battery life (smartwatch mode)5 days vs 7 days+40%
- Weight43 g vs 35 g+23%
- Thickness11 mm vs 8.9 mm+24%
- Pixel density310 ppi vs 317 ppi+2%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | 45 mm |
| Weight | 43 g | 35 g |
| Thickness | 11 mm | 8.9 mm |
| Height | 47.4 mm | 45 mm |
| Width | 47.4 mm | 45 mm |
| Case material | Titanium | Stainless steel |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | Sapphire crystal glass | Saphirglas, 2D-Glas |
| Strap material | Fluorelastomer | — |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Water rating (maker) | 50 m / 5 bar / 5 ATM | 50 m / 5 bar / 5 ATM |
| Military-grade (MIL-STD-810) | Yes | — |
| Colours | Midnight Titanium, Evergreen Titanium | Black, Silver |
| Display | ||
| Screen size | 1.5″ | 1.46″ |
| Display technology | AMOLED | AMOLED |
| Panel | LTPO AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | Yes |
| Touchscreen | Yes | — |
| Resolution (width) | 466 px | 464 px |
| Resolution (height) | 466 px | 464 px |
| Pixel density | 310 ppi | 317 ppi |
| Peak brightness | 3,000 nits | 3,000 nits |
| LTPO display | Yes | — |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 5 days | 7 days |
| Battery capacity | 646 mAh | 339 mAh |
| Battery type | Si/C | Li-Ion |
| Wireless charging | No | — |
| Charging | — | Schnellladefunktion, magnetische Ladeschale |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | Yes |
| Skin temperature | Yes | Yes |
| Temperature sensor | Yes | — |
| Sleep tracking | Yes | Yes |
| Sensors | Accelerometer, gyro, barometer, compass, heart rate, SpO2, thermometer (skin temperature) | Accelerometer, gyro, barometer, compass, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | Yes | — |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Wi-Fi | Wi-Fi 4 | Wi-Fi 1 |
| Bluetooth | 5.2 | 5.2 |
| Smart features | ||
| Speaker | Yes | Yes |
| Voice assistant | Yes | — |
| Music on the watch | Yes | — |
| Storage | 32 GB | 4 GB |
| RAM | 2 GB | — |
| Platform | ||
| Operating system | OxygenOS Watch 8 + Wear OS 7.0 | ColorOS Watch 7.1 |
| Platform | Wear OS | Proprietary |
| Works with | Android | Android |
| Chipset | Qualcomm Snapdragon W5 Gen 1 | Qualcomm Snapdragon W5 Gen 1 |
