vs
7.2Display5.0
5.0Health tracking5.0
9.0Smart features6.5
8.3Build & durability8.2
Dimensions
Size comparison
Watch Series 7 AluminumRedmi Watch 4
| Watch Series 7 Aluminum | Redmi Watch 4 | Difference | |
|---|---|---|---|
| Height | 45 mm | 47.6 mm | −2.6 mm |
| Width | 38 mm | 41.1 mm | −3.1 mm |
| Thickness | 10.7 mm | 10.5 mm | +0.2 mm |
| Weight | 32 g | 32 g | +0 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch Series 7 Aluminum better than Redmi Watch 4?
- LTE (cellular)Yes · Redmi Watch 4: No
- Peak brightness1,000 nits vs 600 nits+67%
- eSIMYes · Redmi Watch 4: No
- Storage32 GB vs 16 GB2×
- Pixel density326 ppi vs 302 ppi+8%
Why is Redmi Watch 4 better than Watch Series 7 Aluminum?
- Screen size1.9″ vs 1.97″+4%
- Battery capacity309 mAh vs 470 mAh+52%
Specifications
Side by side
| Design & durability | ||
| Case size | 45 mm | 48 mm |
| Weight | 32 g | 31.5 g |
| Thickness | 10.7 mm | 10.5 mm |
| Height | 45 mm | 47.6 mm |
| Width | 38 mm | 41.1 mm |
| Case material | Aluminium | Aluminium |
| Sapphire crystal | Yes | — |
| Lens / cover glass | Ion-X strengthened glass | — |
| Strap material | — | TPU |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | IP6X | — |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Colours | Starlight, Midnight, Blue, Green, Red | Black, White |
| Display | ||
| Screen size | 1.9″ | 1.97″ |
| Display technology | OLED | AMOLED |
| Panel | Retina LTPO OLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | 396 px | 390 px |
| Resolution (height) | 484 px | 450 px |
| Pixel density | 326 ppi | 302 ppi |
| Peak brightness | 1,000 nits | 600 nits |
| LTPO display | Yes | — |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | — | 20 days |
| Battery capacity | 309 mAh | 470 mAh |
| Battery type | Li-Ion | Li-Po |
| Wireless charging | Yes | — |
| Charged in 30 min | 53% | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max | Accelerometer, heart rate, compass, gyro, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | Yes | — |
| Compass | Yes | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | Yes | No |
| eSIM | Yes | No |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5 | 5.3 |
| Ultra Wideband | Yes | — |
| Smart features | ||
| Speaker | Yes | Yes |
| Storage | 32 GB | 16 GB |
| RAM | 1 GB | — |
| Platform | ||
| Operating system | watchOS 8.0 | HyperOS |
| Platform | watchOS | Proprietary |
| Works with | — | iOS, Android |
| Chipset | Apple S7 | — |
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