vs
9.2Display8.2
5.0Health tracking5.0
9.6Sports & outdoor8.0
8.6Build & durability8.5
Dimensions
Size comparison
Active 2 (Square)Watch SE
| Active 2 (Square) | Watch SE | Difference | |
|---|---|---|---|
| Height | 36.9 mm | 43 mm | −6.1 mm |
| Width | 43.3 mm | 37 mm | +6.3 mm |
| Thickness | 9 mm | 11.7 mm | −2.7 mm |
| Weight | 31 g | 31 g | = |
Drawn to the same scale from the official dimensions (front and side).
Why is Active 2 (Square) better than Watch SE?
- Thickness9 mm vs 11.7 mm+30%
- Pixel density341 ppi vs 325 ppi+5%
- Resolution (width)390 px vs 372 px+5%
Why is Watch SE better than Active 2 (Square)?
- Battery capacity260 mAh vs 400 mAh+54%
Specifications
Side by side
| Design & durability | ||
| Case size | 43 mm | 43 mm |
| Weight | 31.4 g | 31 g |
| Thickness | 9 mm | 11.7 mm |
| Height | 36.9 mm | 43 mm |
| Width | 43.3 mm | 37 mm |
| Case material | Stainless steel | — |
| Sapphire crystal | Yes | — |
| Lens / cover glass | Sapphire glass | — |
| Water resistance | 5 ATM | 5 ATM |
| Colours | — | Gray, Purple, Brown |
| Display | ||
| Screen size | 1.75″ | 1.75″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | — |
| Resolution (width) | 390 px | 372 px |
| Resolution (height) | 450 px | 430 px |
| Pixel density | 341 ppi | 325 ppi |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | — |
| Battery saver mode | 19 days | — |
| GPS battery life | 21 h | — |
| Battery capacity | 260 mAh | 400 mAh |
| Battery type | — | Li-Ion |
| Charging | Magnetic charging base | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Temperature sensor | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | — | Accelerometer, gyro, heart rate, compass, barometer, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | — | GLONASS, GALILEO, BDS |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Sport profiles | 160 | — |
| Connectivity | ||
| NFC payments | — | Yes |
| LTE (cellular) | — | Yes |
| eSIM | — | Yes |
| Wi-Fi | — | Wi-Fi 4 |
| Bluetooth | 5.2 | 5 |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | Yes |
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Storage | — | 8 GB |
| RAM | — | 1 GB |
| Platform | ||
| Operating system | — | ColorOS Watch 3.0 - China |
| Platform | Proprietary | Proprietary |
| Works with | Android, iOS | — |
| Chipset | — | Qualcomm Snapdragon Wear 4100 |
