| key specs |
| Strap Colour | Green, Black | Black |
| Compatible OS | Android 10 and later, and iOS 14 and newer | Android |
| Strap Material | Rubber | Rubber |
| Dial Shape | Round | Rectangle |
| Display Type | AMOLED | AMOLED |
| Display Size | - | 46mm |
| Ideal For | - | Unisex |
| general |
| Brand | OPPO | Oppo |
| Model | Watch S | Watch ECG Edition |
| Release date | October 16, 2025 | September 25, 2020 |
| Model Name | Watch S | Watch ECG Edition |
| Dial Colour | Silver, Black | Black |
| Dial Shape | Round | Rectangle |
| Strap Colour | Green, Black | Black |
| Strap Material | Rubber | Rubber |
| Size | Large | Large |
| Touchscreen | 1.46-inch AMOLED | Yes |
| Interchangeable Strap | Yes | Yes |
| Water Resistant | 5ATM + IP68 | Yes |
| Dial Material | Stainless Steel | - |
| Water Resistance Depth | - | 5ATM. IPX8 |
| Ideal For | - | Unisex |
| dimensions |
| Width | 44.98mm | - |
| Height | 44.98mm | - |
| Thickness | 8.9mm | - |
| Weight (g) | 35.00 | 45.50 |
| 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, | Tri-axial acceleration sensor, Gyroscope, Geomagnetic, Barometric, Optical heartbeat sensor, Capacitance sensor, Ambient light sensor, ECG |
| Battery Life | Up to 10 days | 40 hours |
| Charge Time | 90 minutes | - |
| Charger Type | Wireless | - |
| Notification | - | Yes |
| Stand By Time | - | 21 days |
| connectivity features |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | 4.2 |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Call Function | - | Yes |
| Messaging Support | - | Yes |
| Third Party App Support | - | Yes |
| Call Features | - | Yes |
| platform and storage features |
| Operating System | ColorOS Watch 7.1 | ColorOS |
| Compatible Operating System | Android 10 and later, and iOS 14 and newer | Android |
| Processor Name | BES2800BP | Qualcomm Snapdragon Wear 2500 + Apollo 3 co-processor |
| Internal Memory | 4GB EMMC | 8000 |
| Number of Cores | - | quad-core |
| RAM | - | 1GB |
| camera and display features |
| Display Resolution | 464x464 | 402x476 |
| Display Type | AMOLED | AMOLED |
| Display Size | - | 46mm |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | - |
| Compass | Yes | Yes |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 2 | 2 |
| Other Fitness Features | sleep tracking, sleep snoring assessment, sleep SpO2 level measurement, sleep quality score, sleep breathing rate monitoring | Fitness Run, 5-Min Workouts, Fat Burn Run, Outdoor Walk, Outdoor Cycling, Swimming, Heart rate monitoring, Sleep monitoring, Get Up Reminder, Guided breathing exercises |