| key specs |
| Strap Colour | Extreme Night Black, Breaking Dawn Brown | Black, Blue, Champagne Gold, Olive, Pink Gold, Red Navy, Rose Gold Yellow |
| Compatible OS | Android, iOS | - |
| Strap Material | Silicone | Silicone |
| Dial Shape | Rectangle | Square |
| Ideal For | Unisex | Unisex |
| Display Size | - | 40mm |
| general |
| Brand | Oppo | Fire-Boltt |
| Model | Watch 4 Pro | Ninja Pro Max |
| Release date | August 29, 2023 | February 10, 2022 |
| Model Name | Oppo Watch 4 Pro | Fire-Boltt Ninja Pro Max |
| Dial Shape | Rectangle | Square |
| Strap Colour | Extreme Night Black, Breaking Dawn Brown | Black, Blue, Champagne Gold, Olive, Pink Gold, Red Navy, Rose Gold Yellow |
| Strap Material | Silicone | Silicone |
| Size | Regular | Regular |
| Touchscreen | Yes | Yes |
| Interchangeable Strap | No | - |
| Water Resistant | 5ATM | Yes |
| Usage | 14 days | Fitness & Outdoor |
| Dial Material | Stainless Steel | - |
| Ideal For | Unisex | Unisex |
| Dial Colour | - | Black |
| dimensions |
| Width | 50.1 | 34.5 |
| Height | 38.3 | 41.5 |
| Thickness | 12.85 | 9.5 |
| Weight (g) | 52.30 | 45.00 |
| Diameter | - | 40 |
| product details |
| Sensor | Acceleration sensor, gyroscope sensor, geomagnetic sensor, optical heart rate sensor, blood oxygen sensor, ECG sensor, ambient light sensor, air pressure sensor, wrist temperature sensor | SpO2 Monitoring, Heart Rate Monitor, Optical Heart Rate Sensor |
| Compatible Device | Android, iOS | Android, iOS |
| Battery Life | 14 days | 8 Days |
| Charge Time | 65 minutes | - |
| Closure | - | Strap Buckle |
| Notification | - | Call, Text, Social Media |
| Battery Type | - | 200 |
| Stand By Time | - | 30 days |
| Rechargeable Battery | - | Yes |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5 |
| Wi-Fi | Yes | - |
| GPS | Yes | - |
| Call Features | - | Reject calls |
| Other Connectivity Features | - | Smart notifications |
| platform and storage features |
| Compatible Operating System | Android, iOS | - |
| RAM | 2GB | - |
| Processor Name | Snapdragon W5, Hengxuan 2700 | - |
| Internal Memory | 32GB | - |
| fitness and watch functions |
| Heart Rate Monitor | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Step Count | - | Yes |
| Language | - | English |
| Number of Buttons | - | 1 |
| Other Fitness Features | - | Meditative breathing, sleep tracking, drink water reminders |
| Other Watch Functions | - | Stopwatch, sedentary reminders |
| camera and display features |
| Display Resolution | - | 240x288 |
| Display Size | - | 40mm |
| Other Display Features | - | Touch Screen |