| Hardware and OS | Xiaomi Mi 9 SE | |
| Operating system | Android 9.0 (Pie) | |
| Processor | Octa-core 2.3 GHz | |
| Chipset | Qualcomm SDM712 Snapdragon 712 (10 nm) | |
| GPU | Adreno 616 | |
| Internal memory | 64/128 GB, 6 GB RAM | |
| External memory | No | |
| Display | Xiaomi Mi 9 SE | other phones |
| Type | Super AMOLED | |
| Size | 5.97" inc | |
| Resolution | 1080 x 2340 px | |
| Protection | Corning Gorilla Glass 5 | |
| Touchscreen | Super AMOLED capacitive touchs | |
| Screen-to-Body Ratio | 84.1% | |
| Display area | 87.5 cm2 | |
| Display aspect ratio | 19.5:9 (height:width) | |
| Pixel Density | 432 PPI | |
| Colors | 16M | |
| Other | HDR | |
| Connectivity | Xiaomi Mi 9 SE | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot | |
| Network | GSM / CDMA / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 5.0, A2DP, LE, aptX HD | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | |
| NFC | Yes | |
| Speed | HSPA, LTE-A | |
| USB | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | |
| Camera | Xiaomi Mi 9 SE | other phones |
| Main camera | 48 MP, Triple | |
| Specs | 48 MP, f/1.8, 1/2', 0.8µm, PDAF -13 MP, f/2.4, (ultrawide), 1.12µm -8 MP, f/2.4, (telephoto), 1.12µm, PDAF | |
| Features | Dual-LED flash, HDR, panorama | |
| Video | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps | |
| Selfie camera | 20 MP, Single | |
| Multimedia | Xiaomi Mi 9 SE | other phones |
| 3.5 mm Jack | No | |
| Radio | No | |
| Design | Xiaomi Mi 9 SE | other phones |
| Colors | Violet, Blue, Gray | |
| Dimensions | 147.5 x 70.5 x 7.5 mm | |
| Weight | 155 g | |
| Battery | Xiaomi Mi 9 SE | other phones |
| Battery capacity | 3070 mAh, Non-removable Li-Po | |
| Other | Xiaomi Mi 9 SE | other phones |
| Release date | 2019, February | |
| Sensors | Fingerprint (under display), accelerometer, gyro, proximity, compass , Infrared port | |