| Xiaomi Mi 9t | ||
| Hardware | ||
| CPU | Qualcomm Snapdragon 730 | Apple A11 Bionic |
| GPU | Adreno 618 | Apple GPU (3-core graphics) |
| RAM memory | 6 GB | 2 GB |
| Storage memory | 128 GB | 64 GB |
| Max memory card | 128 GB | 64 GB |
| Form factor | ||
| Lenght (mm) | 156.7 | 138.4 |
| Width (mm) | 74.3 | 67.3 |
| Thickness (mm) | 8.8 | 7.3 |
| Weight (g) | 191 | 148 |
| Jack | yes | no |
| USB type | Type C | Proprietary |
| USB norm | 2.0 | 2.0 |
| Infrared | no | no |
| Screen | ||
| Size (inch) | 6.39 | 4.7 |
| Resolution | 1080 x 234 | 750 x 1334 |
| Ratio | 19.5:9 | 16:9 |
| Protection | Gorilla Glass 5 | Ion-strengthened glass |
| Type | Amoled | IPS LCD |
| Surface (%) | 86.1 | 65.4 |
| dE White | NotAvailable | |
| dE Red | NotAvailable | |
| dE Green | NotAvailable | |
| dE Blue | NotAvailable | |
| dE Yellow | NotAvailable | |
| dE Cyan | NotAvailable | |
| dE Magenta | NotAvailable | |
| Contrast | 60000:1 | 1395:1 |
| Max brightness | 646 | 640 |
| Sensors | ||
| Resolution - front | 20 | 7 |
| Sensor - front | Samsung S5K3L6 | N/A |
| Resolution - back | 48 | 12 |
| Sensor - back | Sony IMX582 Exmor RS | Apple iSight Camera (8) |
| Video resolution | 2160p | 2160p |
| NotAvailable | ||
| NotAvailable | ||
| NotAvailable | ||
| Benchmark | ||
| Antutu - global | 218625 | 23008 |
| Antutu - CPU | NotAvailable | |
| Antutu - GPU | NotAvailable | |
| Antutu - UX | NotAvailable | |
| Antutu - MEM | NotAvailable | |
| 3DMark - OpenGL | NotAvailable | |
| 3DMark - Vulkan | NotAvailable | |
| Radio capacity | ||
| 3G frequencies | B1, B2, B4, B5, B8 | B1, B2, B4, B5, B8 |
| 4G frequencies | B1, B2, B3, B4, B5, B7,B8, B20, B28, B38, B40 | B1, B2, B3, B4, B5, B7,B8 , B12, B13, B17, B18, B19, B20,B25, B26, B27, B28, B29, B30, B34, B38, B39, B40, B41 |
| 5G frequencies | NotAvailable | |
| NotAvailable | ||
| GPS | A-GPS, Beidou, Galileo, GLONASS, GPS | A-GPS, Cell ID, GLONASS, GPS, Wi-Fi |
| Wifi | 802.11a, 802.11ac, 802.11b, 802.11g, 802.11n, 802.11n 5GHz | 802.11a, 802.11ac, 802.11b, 802.11g, 802.11n, 802.11n 5GHz |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 LE |
| SAR (head) | 1.34 | 1.19 |
| SAR (body) | 1.51 | 1.17 |
| VoLTE | yes | yes |
| Wifi calls | yes | no |
| NFC | yes | yes |
| Radio capacity | NotAvailable | |
| NotAvailable | ||
| NotAvailable | ||
| NotAvailable | ||
| Battery | ||
| Capacity | 4000 | 1821 |
| Fast charging | yes | yes |
| Max charging W | 18 | 15 |
| Sound | ||
| Frequency Respons | NotAvailable | |
| Noise Level | NotAvailable | |
| Dynamic Range | NotAvailable | |
| THD (%) | NotAvailable | |
| Intermodulation Distortion | NotAvailable | |
| Stereo Crosstalk | -93.8 | -80.4 |
| Operating system | ||
| OS Version | MIUI 10 | iOS 11 |
| Base OS | Android 9 | iOS |