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| key specs | ||||
| Strap Colour | Green, Black | - | ||
| Compatible OS | Android 10 and later, and iOS 14 and newer | - | ||
| Strap Material | Rubber | Rubber | ||
| Dial Shape | Round | Square | ||
| Display Type | AMOLED | - | ||
| Ideal For | - | Unisex | ||
| general | ||||
| Brand | OPPO | Fitbit | ||
| Model | Watch S | Versa 4 | ||
| Release date | October 16, 2025 | October 1, 2022 | ||
| Model Name | Watch S | Versa 4 | ||
| Dial Colour | Silver, Black | - | ||
| Dial Shape | Round | Square | ||
| Strap Colour | Green, Black | - | ||
| Strap Material | Rubber | Rubber | ||
| Size | Large | - | ||
| Touchscreen | 1.46-inch AMOLED | Yes | ||
| Interchangeable Strap | Yes | Yes | ||
| Water Resistant | 5ATM + IP68 | Yes | ||
| Dial Material | Stainless Steel | Aluminium | ||
| Water Resistance Depth | - | 50m | ||
| Usage | - | Health, Fitness, Notifications, Calls, Voice Assistant | ||
| Ideal For | - | Unisex | ||
| dimensions | ||||
| Width | 44.98mm | - | ||
| Height | 44.98mm | - | ||
| Thickness | 8.9mm | - | ||
| Weight (g) | 35.00 | - | ||
| product details | ||||
| Sensor | eight-channel optical heart rate sensor, 16-channel optical pulse oximeter sensor, ECG sensor, a wrist temperature sensor, accelerometer, gyroscope, geomagnetic sensor, air pressure sensor, ambient light sensor, | Blood Oxygen Monitor, Heart Rate Monitor | ||
| Battery Life | Up to 10 days | 4 days | ||
| Charge Time | 90 minutes | - | ||
| Charger Type | Wireless | - | ||
| Compatible Device | - | Android, iOS | ||
| Notification | - | Yes | ||
| Notification Type | - | Mirrored from smartphone, read-only | ||
| connectivity features | ||||
| Bluetooth | Yes | Yes | ||
| Bluetooth Version | 5.2 | 5 | ||
| Wi-Fi | Yes | - | ||
| GPS | Yes | Yes | ||
| Call Function | - | Yes | ||
| Messaging Support | - | Yes | ||
| Third Party App Support | - | Yes | ||
| Call Features | - | Mute calls, Reject calls | ||
| Other Connectivity Features | - | Notifications | ||
| platform and storage features | ||||
| Operating System | ColorOS Watch 7.1 | - | ||
| Compatible Operating System | Android 10 and later, and iOS 14 and newer | - | ||
| Processor Name | BES2800BP | - | ||
| Internal Memory | 4GB EMMC | - | ||
| camera and display features | ||||
| Display Resolution | 464x464 | - | ||
| Display Type | AMOLED | - | ||
| fitness and watch functions | ||||
| Step Count | Yes | Yes | ||
| Calorie Count | Yes | Yes | ||
| Heart Rate Monitor | Yes | Yes | ||
| Altimeter | Yes | Yes | ||
| Compass | Yes | Yes | ||
| Calendar | Yes | Yes | ||
| Alarm Clock | Yes | Yes | ||
| Date & Time Display | Yes | Yes | ||
| Number of Buttons | 2 | 1 | ||
| Other Fitness Features | sleep tracking, sleep snoring assessment, sleep SpO2 level measurement, sleep quality score, sleep breathing rate monitoring | SpO2 tracking | ||
| Language | - | English | ||
| ratings | ||||
| Overall NDTV Rating | - | Read Review | ||
| Design and comfort Rating | - | |||
| Tracking accuracy Rating | - | |||
| Companion app Rating | - | |||
| Software and ecosystem Rating | - | |||
| Battery life Rating | - | |||
| audio and video features | ||||
| Speaker | - | Yes | ||
| Microphone | - | Yes | ||
| Voice Control | - | Yes | ||
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