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| key specs | ||||
| Display Size | 41mm | - | ||
| Strap Material | Milanese | Silicone | ||
| Dial Shape | Round | Round | ||
| Ideal For | Unisex | Unisex | ||
| Display Type | - | AMOLED | ||
| general | ||||
| Brand | Xiaomi | OnePlus | ||
| Model | Watch S4 41mm | Watch 2R | ||
| Release date | September 24, 2025 | July 16, 2024 | ||
| Dial Shape | Round | Round | ||
| Strap Material | Milanese | Silicone | ||
| Size | Regular | Regular | ||
| Touchscreen | 1.32 | Yes | ||
| Water Resistant | 5ATM | 5 ATM, IP68 | ||
| Water Resistance Depth | 50 m | 50 m | ||
| Usage | Regular | Regular, Sports | ||
| Dial Material | Stainless steel | Aluminium | ||
| Ideal For | Unisex | Unisex | ||
| dimensions | ||||
| Width | 41.2 | 47.0 | ||
| Height | 41.2 | 46.6 | ||
| Diameter | 9.5 | - | ||
| Weight (g) | 32.00 | 37.00 | ||
| Thickness | - | 12.1 | ||
| product details | ||||
| Sensor | Heart rate sensor (with blood oxygen sensor), Accelerometer, Gyroscope, Ambient light sensor, Electronic compass, Barometer sensor, Temperature sensor | Acceleration, Gyroscope, Optical heart rate, Ratio Optical pulse oximeter, Geomagnetic, Light, Barometer | ||
| Battery Type | 320mAh | 500mAh | ||
| Battery Life | 8 days | 12 days | ||
| Rechargeable Battery | - | Yes | ||
| Other Features | - | stress, sleep tracking | ||
| connectivity features | ||||
| Call Function | Yes | - | ||
| Bluetooth | Yes | Yes | ||
| Bluetooth Version | 5.4 | - | ||
| GPS | Yes | Yes | ||
| Wi-Fi | - | Yes | ||
| Messaging Support | - | Yes | ||
| platform and storage features | ||||
| Operating System | Xiaomi HyperOS 3 | WearOS 4, RTOS | ||
| RAM | - | 2GB | ||
| Processor Name | - | Snapdragon 5, BES2700 | ||
| Internal Memory | - | 32GB | ||
| camera and display features | ||||
| Display Resolution | 466 × 466 | 466 x 466 | ||
| Display Size | 41mm | - | ||
| Other Display Features | 1500nits, 60Hz refresh rate | 1.43-inch | ||
| Display Type | - | AMOLED | ||
| fitness and watch functions | ||||
| Step Count | Yes | Yes | ||
| Heart Rate Monitor | Yes | Yes | ||
| Altimeter | Yes | - | ||
| Compass | Yes | - | ||
| Calendar | Yes | Yes | ||
| Alarm Clock | Yes | - | ||
| Date & Time Display | Yes | Yes | ||
| Language | English | English | ||
| Number of Buttons | - | 2 | ||
| audio and video features | ||||
| Speaker | Yes | Yes | ||
| Microphone | Yes | Yes | ||
| Voice Control | - | Yes | ||
| ratings | ||||
| Overall NDTV Rating | - | Read Review | ||
| Design and comfort Rating | - | |||
| Tracking accuracy Rating | - | |||
| Software and ecosystem Rating | - | |||
| Battery life Rating | - | |||
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