vs
5.2Smart features3.9
Dimensions
Size comparison
Watch SE (2nd Gen)Watch GT 3 SE
| Watch SE (2nd Gen) | Watch GT 3 SE | Difference | |
|---|---|---|---|
| Case size | 44 mm | 46.4 mm | −2.4 mm |
| Thickness | 10.7 mm | 11 mm | −0.3 mm |
| Weight | 33 g | 36 g | −3 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch SE (2nd Gen) better than Watch GT 3 SE?
- Weight32.9 g vs 35.6 g+8%
- Thickness10.7 mm vs 11 mm+3%
Why is Watch GT 3 SE better than Watch SE (2nd Gen)?
- Resolution (width)448 px vs 466 px+4%
Specifications
Side by side
| Design & durability | ||
| Case size | 44 mm | 46 mm |
| Weight | 32.9 g | 35.6 g |
| Thickness | 10.7 mm | 11 mm |
| Height | — | 46.4 mm |
| Width | — | 46.4 mm |
| Case material | — | Plastic / polymer |
| Water resistance | — | 5 ATM |
| Colours | — | Graphite Black, Wilderness Green |
| Display | ||
| Screen size | — | 1.43″ |
| Display technology | — | AMOLED |
| Panel | — | AMOLED |
| AMOLED / OLED display | — | Yes |
| Resolution (width) | 448 px | 466 px |
| Resolution (height) | 368 px | 466 px |
| Pixel density | — | 326 ppi |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery capacity | — | 455 mAh |
| Wireless charging | Yes | Yes |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Sleep tracking | Yes | — |
| Sensors | — | Accelerometer, gyro, heart rate, barometer, compass, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Barometric altimeter | — | Yes |
| Compass | Yes | Yes |
| Connectivity | ||
| NFC payments | — | No |
| LTE (cellular) | — | No |
| eSIM | — | No |
| Bluetooth | 5.3 | — |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | — | Yes |
| Voice assistant | Yes | — |
| Music on the watch | Yes | — |
| Storage | — | 4 GB |
| Platform | ||
| Operating system | — | HarmonyOS 2.0 |
| Platform | — | HarmonyOS |
| Works with | iOS | — |









