| Mobile Brand | Xiaomi |
| Model Name | Redmi K90 Ultra |
| Model Launch Year | 2025 |
| RAM Variants | 16GB |
| Storage Variants | 512GB|1TB |
| Rear Camera Count | 4 |
| Rear Camera Details | 50MP Wide + 50MP Ultra Wide + 200MP Periscope + Macro |
| Front Camera Count | 1 |
| Front Camera Details | 32MP |
| Height | 162 mm |
| Width | 76 mm |
| Thickness | 8.7 mm |
| Weight | 219 g |
| Front Material Type | Shield Glass |
| Frame Material Type | Titanium |
| Back Material Type | Ceramic |
| Screen Size | 6.83 inches |
| Aspect Ratio | 20:09 |
| Color Variants | Black|Titanium |
| 5G Support | Yes |
| Phone with Wi-Fi Version | Wi-Fi 7 |
| Phone with Bluetooth Version | Bluetooth 6.0 |
| Near Field Communication Support | Yes |
| IR Blaster (Infrared Transmitter) | Yes |
| USB Type | USB Type-C 3.2 |
| eSIM Technological Support | Yes |
| Fingerprint Sensor Type | Ultrasonic Under Display |
| Face Recognition Unlock System | Yes |
| IP Rating (Ingress Protection Certificate) | IP68 |
| Stereo Speakers | Yes |
| High Resolution Audio | Yes |