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| Total | 87 | 84 |
| Brand | Oppo | Xiaomi |
| Model | Oppo Find X9 | Xiaomi Mi 11 Ultra |
| Variant | 12GB + 256GB | |
| Device Type | Smartphone | Smartphone |
| Release Date | 21 November 2025 | 29 March 2021 |
| In Box | Phone, 80W Charger, USB-C Cable, SIM Tool, Case | Phone, 67W Charger, USB-C Cable, Clear Case, SIM Tool |
| Size | 6.59 inches | 6.81 inches |
| Type | AMOLED | LTPO AMOLED |
| Resolution | 1256 × 2760 | 1440 × 3200 |
| PPI | 460 | 515 |
| Refresh Rate | 120 Hz | 120 Hz |
| HDR | ✅ Yes | ✅ Yes |
| Brightness | 3600 nits | 1700 nits |
| Screen to Body Ratio | ~ 95.4 % | ~ 91.4 % |
| Chipset | Dimensity 9500 | Snapdragon 888 |
| CPU Cores | 8 | 8 |
| Cores Details | 4.21 | 2.84 |
| Max Clock Speed | 4.21 GHz | 2.84 GHz |
| GPU | ||
| RAM | 12GB | 12GB |
| RAM Type | LPDDR5X | LPDDR5 |
| Storage | 256 Gb | 256 Gb |
| Rear Camera | 50 MP (wide) + 50 MP (ultrawide) + 50 MP (telephoto) | 50 MP (wide) + 48 MP (ultrawide) + 48 MP (periscope telephoto) |
| Rear Video | 4K@120fps Dolby Vision | 8K@24fps, 4K@60fps, 1080p@960fps |
| Flash | ✅ Yes | ✅ Yes |
| OIS | ✅ Yes | ✅ Yes |
| Front Camera | 32 MP (wide) | 20 MP (wide) |
| Front Video | 4K@60fps | 1080p@30fps |
| Battery Type | Lithium-Polymer (Li-Po) | Lithium-Polymer (Li-Po) |
| Capacity | 7025 mAh | 5000 mAh |
| Fast Charging | 80 W | 67 W |
| Wireless Charging | 50 W | 67 W |
| Reverse Charging | 10 W | 10 W |
| Operating System | Android | Android |
| OS Version | v16 | v11 |
| Update Policy | 5 | 3 |
| 5G | ✅ Yes | ✅ Yes |
| 4G | ✅ Yes | ✅ Yes |
| 3G | ✅ Yes | ✅ Yes |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| Wi-Fi | 7 | 6 |
| Bluetooth | v6 | v5.2 |
| USB | v3.2 | v2 |
| NFC | ✅ Yes | ✅ Yes |
| Height | 156.98 mm | 164.3 mm |
| Width | 73.93 mm | 74.6 mm |
| Thickness | 8 mm | 8.38 mm |
| Weight | 203 g | 234 g |
| Water Resistance, IP Rating | IP66/IP68/IP69 | IP68 |
| Colors | Space Black, Titanium Grey, Velvet Red | Ceramic White, Ceramic Black |
| Fingerprint | Under-display Ultrasonic | Under-display Optical |
| Face Unlock | ✅ Yes | ✅ Yes |
| Speakers | 2 | 2 |
| Stereo Speakers | ✅ Yes | ✅ Yes |
| Headphone Jack | ❌ No | ❌ No |
| Dedicated Cooling | ✅ Yes | ✅ Yes |
| Gaming Triggers | ❌ No | ❌ No |
| AI FPS Generation | ❌ No | ❌ No |
| Protection | Corning Gorilla Glass 7i | Corning Gorilla Glass Victus |
| Camera Cutout | Punch-Hole Center | Punch-Hole Left |
| Curved Display | ❌ No | ✅ Yes |
| Round Corners | ✅ Yes | ✅ Yes |
| Dust Resistance | ✅ Yes | ✅ Yes |
| Storage Type | UFS 4.1 | UFS 3.1 |
| Antutu Score | 1,100,000 | 725,000 |
| eSIM | ✅ Yes | ❌ No |
| IR Blaster | ❌ No | ✅ Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Fingerprint, Barometer | Accelerometer, Gyro, Proximity, Compass, Fingerprint |