vs
6.8Display6.6
8.0Sports & outdoor6.2
9.0Smart features8.5
8.1Build & durability3.6
Dimensions
Size comparison
Watch SE 2Watch 3
| Watch SE 2 | Watch 3 | Difference | |
|---|---|---|---|
| Height | 44 mm | 46.2 mm | −2.2 mm |
| Width | 38 mm | 46.2 mm | −8.2 mm |
| Thickness | 10.7 mm | 12.2 mm | −1.5 mm |
| Weight | 33 g | 54 g | −21 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch SE 2 better than Watch 3?
- Weight33 g vs 54 g+64%
- Screen size1.78″ vs 1.43″+24%
- Storage32 GB vs 16 GB2×
- Thickness10.7 mm vs 12.2 mm+14%
Why is Watch 3 better than Watch SE 2?
- Battery capacity296 mAh vs 450 mAh+52%
- Resolution (width)368 px vs 466 px+27%
Specifications
Side by side
| Design & durability | ||
| Case size | 44 mm | 46 mm |
| Weight | 33 g | 54 g |
| Thickness | 10.7 mm | 12.2 mm |
| Height | 44 mm | 46.2 mm |
| Width | 38 mm | 46.2 mm |
| Case material | Aluminium | Stainless steel |
| Sapphire crystal | Yes | — |
| Lens / cover glass | Ion-X strengthened glass | — |
| Water resistance | 5 ATM | 5 ATM |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Colours | Midnight, Starlight, Silver | Black, Silver |
| Display | ||
| Screen size | 1.78″ | 1.43″ |
| Display technology | OLED | AMOLED |
| Panel | Retina LTPO OLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | — | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | 368 px | 466 px |
| Resolution (height) | 448 px | 466 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) | — | 3 days |
| Battery capacity | 296 mAh | 450 mAh |
| Battery type | Li-Ion | Li-Ion |
| Wireless charging | Yes | Yes |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Skin temperature | — | Yes |
| Temperature sensor | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, gyro, heart rate (2nd gen), barometer, always-on altimeter, compass | Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature) |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO, 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 | 5.3 | 5.2 |
| Smart features | ||
| Calls from the wrist | — | Yes |
| Speaker | Yes | Yes |
| Microphone | — | Yes |
| Storage | 32 GB | 16 GB |
| RAM | 1 GB | 2 GB |
| Platform | ||
| Operating system | watchOS 9.0 | HarmonyOS 2.0 |
| Platform | watchOS | HarmonyOS |
| Works with | — | iOS, Android |
| Chipset | Apple S8 | HiSilicon Hi6262 |
