vs
8.3Display8.8
8.2Health tracking9.2
6.4Sports & outdoor8.0
7.9Smart features9.0
4.8Build & durability5.7
Dimensions
Size comparison
Watch Series 12Watch Series 12 Aluminum
| Watch Series 12 | Watch Series 12 Aluminum | Difference | |
|---|---|---|---|
| Height | 46 mm | 46 mm | = |
| Width | 40 mm | 40 mm | = |
| Thickness | 9.7 mm | 9.7 mm | = |
| Weight | 53 g | 40 g | +13 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch Series 12 better than Watch Series 12 Aluminum?
Watch Series 12 has no measurable advantages in this pair.
Why is Watch Series 12 Aluminum better than Watch Series 12?
- Weight52.9 g vs 39.5 g+34%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 46 mm |
| Weight | 52.9 g | 39.5 g |
| Thickness | 9.7 mm | 9.7 mm |
| Height | 46 mm | 46 mm |
| Width | 40 mm | 40 mm |
| Sapphire crystal | Yes | — |
| Lens / cover glass | Sapphire crystal | Ceramic Shield 2 |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | IP6X | IP6X |
| Water rating (maker) | 50 m / 5 bar / 5 ATM | — |
| Colours | Radiant Gold Titanium, Natural Titanium, Silver Titanium (Hermès only), Pearl White Ceramic, Night Blue Ceramic | Dark Bronze, Light Gold, Black, Space Gray |
| Display | ||
| Screen size | 1.96″ | 1.96″ |
| Display technology | OLED | OLED |
| Panel | Retina LTPO3 OLED | Retina LTPO3 OLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | — |
| Resolution (width) | 416 px | 416 px |
| Resolution (height) | 496 px | 496 px |
| Pixel density | 326 ppi | 326 ppi |
| Peak brightness | 2,000 nits | 2,000 nits |
| LTPO display | Yes | Yes |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 1 days | — |
| Battery life (hours) | 24 h | — |
| Battery capacity | 377 mAh | 377 mAh |
| Battery type | Li-Ion | Li-Ion |
| Wireless charging | Yes | Yes |
| Charged in 30 min | 80% | 80% |
| 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, always-on heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body), temperature (water) | Accelerometer, gyro, always-on heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body), temperature (water) |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO, BDS, 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 | 5.3 |
| Ultra Wideband | Yes | Yes |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | Yes |
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Music on the watch | Yes | — |
| Storage | 64 GB | 64 GB |
| Platform | ||
| Operating system | watchOS 27 | watchOS 27 |
| Platform | watchOS | watchOS |
| Works with | iOS | — |
| Chipset | Apple S11 | Apple S11 |
