| key specs |
| Dial Shape | Round | Round |
| Display Type | AMOLED | AMOLED |
| Ideal For | Unisex | - |
| Strap Colour | - | Green, Black |
| Compatible OS | - | Android 10 and later, and iOS 14 and newer |
| Strap Material | - | Rubber |
| general |
| Brand | Amazfit | OPPO |
| Model | Cheetah 2 Ultra | Watch S |
| Release date | June 9, 2026 | October 16, 2025 |
| Dial Shape | Round | Round |
| Size | Large | Large |
| Touchscreen | 1.5 | 1.46-inch AMOLED |
| Water Resistant | 5 ATM | 5ATM + IP68 |
| Water Resistance Depth | 50 m | - |
| Usage | Regular, Sports, Adventure Sports | - |
| Ideal For | Unisex | - |
| Model Name | - | Watch S |
| Dial Colour | - | Silver, Black |
| Strap Colour | - | Green, Black |
| Strap Material | - | Rubber |
| Interchangeable Strap | - | Yes |
| Dial Material | - | Stainless Steel |
| dimensions |
| Width | 47.4 | 44.98mm |
| Height | 47.4 | 44.98mm |
| Thickness | 15.6 | 8.9mm |
| Weight (g) | 52.00 | 35.00 |
| product details |
| Sensor | BioTracker PPG biometric sensor, Accelerometer, Gyroscope, Geomagnetic sensor, Temperature sensor, Barometric altimeter, Ambient light 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, |
| Battery Type | 780mAh | - |
| Battery Life | 30 days | Up to 10 days |
| Rechargeable Battery | Yes | - |
| Charge Time | - | 90 minutes |
| Charger Type | - | Wireless |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | 5.2 |
| GPS | Yes | Yes |
| Wi-Fi | - | Yes |
| platform and storage features |
| Operating System | ZeppOS 6 | ColorOS Watch 7.1 |
| Internal Memory | 64GB | 4GB EMMC |
| Compatible Operating System | - | Android 10 and later, and iOS 14 and newer |
| Processor Name | - | BES2800BP |
| camera and display features |
| Display Resolution | 480 x 480 | 464x464 |
| Display Type | AMOLED | AMOLED |
| Other Display Features | Up to 3,000 nits, Sapphire glass | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | - |
| Number of Buttons | 4 | 2 |
| Calorie Count | - | Yes |
| Calendar | - | Yes |
| Alarm Clock | - | Yes |
| Other Fitness Features | - | sleep tracking, sleep snoring assessment, sleep SpO2 level measurement, sleep quality score, sleep breathing rate monitoring |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |