vs
6.8Display8.6
9.2Health tracking9.2
7.9Smart features4.9
Dimensions
Size comparison
Watch Series 7Watch D
| Watch Series 7 | Watch D | Difference | |
|---|---|---|---|
| Height | 45 mm | 51 mm | −6 mm |
| Width | 38 mm | 38 mm | = |
| Thickness | 10.7 mm | 13.6 mm | −2.9 mm |
| Weight | 42 g | 41 g | +1 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch Series 7 better than Watch D?
- LTE (cellular)Yes · Watch D: No
- Storage32 GB vs 4 GB8×
- eSIMYes · Watch D: No
- SpeakerYes · Watch D: No
- Screen size1.9″ vs 1.64″+16%
- Resolution (width)396 px vs 280 px+41%
- Thickness10.7 mm vs 13.6 mm+27%
Why is Watch D better than Watch Series 7?
- Weight42.3 g vs 40.9 g+3%
- Battery capacity309 mAh vs 451 mAh+46%
Specifications
Side by side
| Design & durability | ||
| Case size | 45 mm | 51 mm |
| Weight | 42.3 g | 40.9 g |
| Thickness | 10.7 mm | 13.6 mm |
| Height | 45 mm | 51 mm |
| Width | 38 mm | 38 mm |
| Case material | Stainless steel | Aluminium |
| Sapphire crystal | Yes | — |
| Lens / cover glass | Sapphire crystal glass | — |
| Strap material | Fluorelastomer | — |
| Water resistance | 5 ATM | — |
| Ingress protection | IP6X | IP68 |
| Water resistance (IPx) | — | IPx8 |
| Water rating (maker) | 50 m | — |
| Colours | Graphite, Gold, Silver | Graphite Black |
| Display | ||
| Screen size | 1.9″ | 1.64″ |
| Display technology | OLED | AMOLED |
| Panel | Retina LTPO OLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | — |
| Resolution (width) | 396 px | 280 px |
| Resolution (height) | 484 px | 456 px |
| Pixel density | 326 ppi | 326 ppi |
| Peak brightness | 1,000 nits | — |
| LTPO display | Yes | — |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 0.8 days | — |
| Battery life (hours) | 18 h | — |
| Battery capacity | 309 mAh | 451 mAh |
| Battery type | Li-Ion | Li-Ion |
| Wireless charging | Yes | Yes |
| Charged in 30 min | 53% | — |
| 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 | — |
| Sensors | Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max | Accelerometer, gyro, heart rate, SpO2, thermometer (skin temperature), differential pressure sensor |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | — |
| Barometric altimeter | Yes | — |
| Compass | Yes | — |
| Multisport / triathlon mode | Yes | — |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | Yes | No |
| eSIM | Yes | No |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5 | 5.1 |
| Ultra Wideband | Yes | — |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | No |
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Music on the watch | Yes | — |
| Storage | 32 GB | 4 GB |
| RAM | 1 GB | — |
| Platform | ||
| Operating system | watchOS 8.0 | HarmonyOS 2.1 |
| Platform | watchOS | HarmonyOS |
| Works with | iOS | — |
| Chipset | Apple S7 | — |
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