Dimensions
Size comparison
Watch 3Watch 4
| Watch 3 | Watch 4 | Difference | |
|---|---|---|---|
| Height | 46.2 mm | 46.2 mm | = |
| Width | 46.2 mm | 46.2 mm | = |
| Thickness | 12.2 mm | 10.9 mm | +1.3 mm |
| Weight | 54 g | 48 g | +6 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 3 better than Watch 4?
- Pixel density326 ppi vs 310 ppi+5%
Why is Watch 4 better than Watch 3?
- Storage16 GB vs 32 GB2×
- Weight54 g vs 48 g+12%
- Screen size1.43″ vs 1.5″+5%
- Thickness12.2 mm vs 10.9 mm+12%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 46 mm |
| Weight | 54 g | 48 g |
| Thickness | 12.2 mm | 10.9 mm |
| Height | 46.2 mm | 46.2 mm |
| Width | 46.2 mm | 46.2 mm |
| Case material | Stainless steel | Stainless steel |
| Strap material | — | Leder, Fluorelastomer |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | — | IP6X |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Colours | Black, Silver | Black |
| Display | ||
| Screen size | 1.43″ | 1.5″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 466 px | 466 px |
| Resolution (height) | 466 px | 466 px |
| Pixel density | 326 ppi | 310 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 3 days | 3 days |
| Battery capacity | — | 530 mAh |
| Battery type | Li-Ion | Li-Ion |
| Wireless charging | Yes | Yes |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Skin temperature | — | Yes |
| Temperature sensor | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature) | Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature) |
| Sports & navigation | ||
| Built-in 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) | Yes | Yes |
| eSIM | Yes | Yes |
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 5.2 | 5.2 |
| Smart features | ||
| Speaker | Yes | Yes |
| Voice assistant | — | Yes |
| Music on the watch | — | Yes |
| Storage | 16 GB | 32 GB |
| RAM | 2 GB | 2 GB |
| Platform | ||
| Operating system | HarmonyOS 2.0 | HarmonyOS 3.0 |
| Platform | HarmonyOS | HarmonyOS |
| Works with | — | iOS, Android |
| Chipset | — | Qualcomm Snapdragon W5 Gen 1 |
