Dimensions
Size comparison
Watch 6Watch 4
| Watch 6 | Watch 4 | Difference | |
|---|---|---|---|
| Height | 46.4 mm | 47.4 mm | −1 mm |
| Width | 46.4 mm | 47.4 mm | −1 mm |
| Thickness | 10.9 mm | 11 mm | −0.1 mm |
| Weight | 38 g | 43 g | −5 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 6 better than Watch 4?
- LTE (cellular)Yes · Watch 4: No
- Wireless chargingYes · Watch 4: No
- eSIMYes · Watch 4: No
- Peak brightness3,500 nits vs 3,000 nits+17%
- Weight38 g vs 43 g+13%
Why is Watch 4 better than Watch 6?
Watch 4 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 47 mm |
| Weight | 38 g | 43 g |
| Thickness | 10.9 mm | 11 mm |
| Height | 46.4 mm | 47.4 mm |
| Width | 46.4 mm | 47.4 mm |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | Sapphire crystal | Sapphire crystal glass |
| Strap material | Fluorelastomer | — |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Water rating (maker) | 40 m / 5 bar / 5 ATM | — |
| Military-grade (MIL-STD-810) | — | Yes |
| Colours | Silver, Gold, Black | Midnight Titanium, Evergreen Titanium |
| Display | ||
| Screen size | 1.5″ | 1.5″ |
| Display technology | AMOLED | AMOLED |
| Panel | LTPO 2.0 AMOLED | LTPO AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | — |
| Resolution (width) | 466 px | 466 px |
| Resolution (height) | 466 px | 466 px |
| Pixel density | 310 ppi | 310 ppi |
| Peak brightness | 3,500 nits | 3,000 nits |
| LTPO display | Yes | Yes |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 11 days | — |
| Battery capacity | — | 646 mAh |
| Battery type | — | Si/C |
| Wireless charging | Yes | No |
| Charging | kabellos, magnetische Ladeschale | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | Yes |
| Skin temperature | Yes | Yes |
| Temperature sensor | Yes | Yes |
| HRV tracking | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature), X-TAP | Accelerometer, gyro, barometer, compass, heart rate, SpO2, thermometer (skin temperature) |
| 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 |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | Yes | No |
| eSIM | Yes | No |
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 5.2 | 5.2 |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | Yes |
| Microphone | Yes | — |
| Storage | — | 32 GB |
| RAM | — | 2 GB |
| Platform | ||
| Operating system | HarmonyOS | OxygenOS Watch 8 + Wear OS 7.0 |
| Platform | HarmonyOS | Wear OS |
| Works with | iOS, Android | — |
| Chipset | — | Qualcomm Snapdragon W5 Gen 1 |
