OPPO Watch S vs Amazfit GTS 4 mini comparison
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| key specs |
| Strap Colour | Green, Black | - |
| Compatible OS | Android 10 and later, and iOS 14 and newer | - |
| Strap Material | Rubber | Silicone |
| Dial Shape | Round | - |
| Display Type | AMOLED | AMOLED |
| Display Size | - | 41mm |
| Ideal For | - | Unisex |
| general |
| Brand | OPPO | Amazfit |
| Model | Watch S | GTS 4 mini |
| Release date | October 16, 2025 | July 16, 2022 |
| Model Name | Watch S | - |
| Dial Colour | Silver, Black | - |
| Dial Shape | Round | - |
| Strap Colour | Green, Black | - |
| Strap Material | Rubber | Silicone |
| Size | Large | Regular |
| Touchscreen | 1.46-inch AMOLED | Yes |
| Interchangeable Strap | Yes | - |
| Water Resistant | 5ATM + IP68 | Yes |
| Dial Material | Stainless Steel | - |
| Ideal For | - | Unisex |
| dimensions |
| Width | 44.98mm | 41.8 |
| Height | 44.98mm | 36.66 |
| Thickness | 8.9mm | 9.1 |
| Weight (g) | 35.00 | 31.20 |
| 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, | Acceleration sensor, Geomagnetic sensor, Ambient light sensor |
| Battery Life | Up to 10 days | 15 days |
| Charge Time | 90 minutes | Approx 2 hours |
| Charger Type | Wireless | Magnetic charger |
| Compatible Device | - | Android 7.0 and above, iOS 12.0 and above |
| connectivity features |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | v5.2 |
| Wi-Fi | Yes | - |
| GPS | Yes | Yes |
| 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 | 336x384 |
| Display Type | AMOLED | AMOLED |
| Display Size | - | 41mm |
| fitness and watch functions |
| Step Count | Yes | - |
| Calorie Count | Yes | - |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | - |
| Compass | Yes | - |
| Calendar | Yes | - |
| Alarm Clock | Yes | - |
| Date & Time Display | Yes | - |
| Number of Buttons | 2 | - |
| Other Fitness Features | sleep tracking, sleep snoring assessment, sleep SpO2 level measurement, sleep quality score, sleep breathing rate monitoring | - |
| audio and video features |
| Microphone | - | Yes |
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