| Global Score | |
| 71.6 | 81.4 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 4.4.2, 4.2.1 | Android 9.0 Pie |
| 0000-00-00 | 2019-04-15 |
| 5.67 x 2.90 x 0.32 inches | 5.81 x 2.78 x 0.29 inches |
| 5.11 ounces | 5.47 ounces |
| Black | 16 777 216 |
| -- | Scratch-Resistant Glass |
| $ 300.00 | -- |
| Display / Screen | |
| 5 inches | 6 inches |
| 1080 x 1920 pixels (Full HD) | 2340 x 1080 pixels |
| IPS LCD | AMOLED |
| 441 pixels per inch | 430 pixels per inch |
| -- | 600 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.7 |
| Performance | |
| Qualcomm Snapdragon 800 8974-AB chipset | Qualcomm Snapdragon 712 SDM712 chipset |
| Krait 400 (Quad-Core 2360 MHz) processor | Kryo 360, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 2 GB (933 MHz) RAM | 6 GB RAM |
| Adreno 330 (450 MHz) GPU | Adreno 616 GPU |
| 9.27 | 9.36 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 7.7 | 10.1 |
| Camera | |
| 13.00 MP + 2.00 MP | 48.00 MP + 20.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 8.91 | 11.66 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 4.6 | 6.3 |
| Battery Life | |
| 3050mAh Li-Ion Battery | 3070mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 5.04 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Xiaomi Mi 9 SE has a global score of 81.4, which is better than the Xiaomi Mi-3's global score of 71.6. The Xiaomi Mi 9 SE is a a little heavier but just a bit thinner phone than Xiaomi Mi-3. Both of these devices have Android OS (Operating System), but the Xiaomi Mi 9 SE has the newer 9.0 Pie version while Xiaomi Mi-3 has Android 4.4.2, giving you a couple additional features.
The Xiaomi Mi-3 features a little bit better screen than Xiaomi Mi 9 SE, because although it has a bit smaller screen and a little bit lower resolution of 1920 x 1080, it also counts with a quite higher quantity of pixels in each inch of screen. Xiaomi Mi 9 SE counts with a much greater storage capacity to install games and applications than Xiaomi Mi-3, because it has more internal memory.
The Xiaomi Mi 9 SE has just a bit better processing power than Xiaomi Mi-3, because although it has doesn't have an additional GPU, it also counts with a larger number of cores and more RAM memory. The Xiaomi Mi 9 SE has a way better camera than Xiaomi Mi-3, because it has a bigger camera aperture to take better low-light photography, a way higher 3840x2160 video definition and a way more mega-pixels camera in the back.
Xiaomi Mi 9 SE has a battery duration that's just as good as Xiaomi Mi-3's battery performance, although the Xiaomi Mi 9 SE also has 3070mAh of battery capacity against 3050mAh.
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