Compare phones
| Global Score | |
| 79.2 | 81.4 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 11, 10, 9.0 Pie | Android 9.0 Pie |
| 2019-07-24 | 2019-04-15 |
| 6.04 x 2.83 x 0.33 inches | 5.81 x 2.78 x 0.29 inches |
| 6.13 ounces | 5.47 ounces |
| Blue, Gray and White | 16 777 216 |
| Glass (Corning Gorilla Glass 5) and Plastic | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.1 inches | 6 inches |
| 1560 x 720 pixels | 2340 x 1080 pixels |
| Super AMOLED | AMOLED |
| 282 pixels per inch | 430 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.3 | 8.7 |
| Performance | |
| Qualcomm Snapdragon 665 chipset | Qualcomm Snapdragon 712 SDM712 chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | Kryo 360, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Adreno 610 GPU | Adreno 616 GPU |
| 9.09 | 9.36 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 13.18 | 10.1 |
| Camera | |
| 48.00 MP + 32.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.43 inches (1/2.3") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.44 | 11.66 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 4030mAh Battery | 3070mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.04 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Xiaomi Mi 9 SE is a bit better than Xiaomi Mi A3, getting a global score of 81.4 against 79.2. Xiaomi Mi 9 SE is a thinner and lighter phone than the Xiaomi Mi A3, although both were released with only a few months difference. Both phones in our current comparison have Android OS (operating system), but the Xiaomi Mi 9 SE has newer 9.0 Pie version and Xiaomi Mi A3 has Android 11 version, so it provides the user some extra features and performance optimizations.
Xiaomi Mi 9 SE features a bit better processor than Xiaomi Mi A3, and although they both have a Octa-Core processor, the Xiaomi Mi 9 SE also has more RAM memory. Xiaomi Mi 9 SE counts with a more vivid display than Xiaomi Mi A3, because although it has a bit smaller screen, it also counts with a lot better resolution of 1080 x 2340 and a way higher screen pixels density.
The Xiaomi Mi 9 SE takes a little bit better photos and videos than Xiaomi Mi A3, and although they both have the same 30 frames per second video frame rates, a 48 mega-pixels back facing camera, the same camera aperture and the same 3840x2160 (4K) video resolution, the Xiaomi Mi 9 SE also has a larger camera sensor.
Xiaomi Mi A3 features a lot bigger memory capacity for games and applications than Xiaomi Mi 9 SE, and although they both have exactly the same 128 GB internal memory, the Xiaomi Mi A3 also has a slot for external memory cards that holds a maximum of 256 GB. The Xiaomi Mi A3 features improved battery performance than Xiaomi Mi 9 SE, because it has 4030mAh of battery capacity.
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