vs
6.8Display7.2
9.2Health tracking5.0
6.4Sports & outdoor8.0
7.9Smart features9.0
6.0Build & durability8.3
Dimensions
Size comparison
Watch Series 7Watch Series 7 Aluminum
| Watch Series 7 | Watch Series 7 Aluminum | Difference | |
|---|---|---|---|
| Height | 45 mm | 45 mm | = |
| Width | 38 mm | 38 mm | = |
| Thickness | 10.7 mm | 10.7 mm | = |
| Weight | 42 g | 32 g | +10 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch Series 7 better than Watch Series 7 Aluminum?
Watch Series 7 has no measurable advantages in this pair.
Why is Watch Series 7 Aluminum better than Watch Series 7?
- Weight42.3 g vs 32 g+32%
Specifications
Side by side
| Design & durability | ||
| Case size | 45 mm | 45 mm |
| Weight | 42.3 g | 32 g |
| Thickness | 10.7 mm | 10.7 mm |
| Height | 45 mm | 45 mm |
| Width | 38 mm | 38 mm |
| Case material | Stainless steel | Aluminium |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | Sapphire crystal glass | Ion-X strengthened glass |
| Strap material | Fluorelastomer | — |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | IP6X | IP6X |
| Water rating (maker) | 50 m | — |
| Colours | Graphite, Gold, Silver | Starlight, Midnight, Blue, Green, Red |
| Display | ||
| Screen size | 1.9″ | 1.9″ |
| Display technology | OLED | OLED |
| Panel | Retina LTPO OLED | Retina LTPO OLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | — |
| Resolution (width) | 396 px | 396 px |
| Resolution (height) | 484 px | 484 px |
| Pixel density | 326 ppi | 326 ppi |
| Peak brightness | 1,000 nits | 1,000 nits |
| LTPO display | Yes | Yes |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 0.8 days | — |
| Battery life (hours) | 18 h | — |
| Battery capacity | 309 mAh | 309 mAh |
| Battery type | Li-Ion | Li-Ion |
| Wireless charging | Yes | Yes |
| Charged in 30 min | 53% | 53% |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | Yes |
| Skin temperature | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max | Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max |
| 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 | 5 |
| 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 | 32 GB | 32 GB |
| RAM | 1 GB | 1 GB |
| Platform | ||
| Operating system | watchOS 8.0 | watchOS 8.0 |
| Platform | watchOS | watchOS |
| Works with | iOS | — |
| Chipset | Apple S7 | Apple S7 |
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