Compare phones
| Global Score | |
| 79.2 | 79 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 11, 10, 9.0 Pie | Android 11, 10 |
| 2019-07-24 | 2020-04-07 |
| 6.04 x 2.83 x 0.33 inches | 6.53 x 3.02 x 0.35 inches |
| 6.13 ounces | 7.37 ounces |
| Blue, Gray and White | Aurora blue, Glacier white and Interstellar grey |
| Glass (Corning Gorilla Glass 5) and Plastic | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 249.00 |
| Display / Screen | |
| 6.1 inches | 6.7 inches |
| 1560 x 720 pixels | 2400 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 282 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8 |
| Performance | |
| Qualcomm Snapdragon 665 chipset | Qualcomm Snapdragon 720G SM7125 chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 610 GPU | Adreno 618 GPU |
| 9.09 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 13.18 | 11.74 |
| Camera | |
| 48.00 MP + 32.00 MP | 48.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 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 | 11.55 |
| 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+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4030mAh Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| 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 A3 is a bit better than Xiaomi Redmi Note 9S, with a general score of 79.2 against 79. These phones include the same Android 11 OS (operating system). Even though Xiaomi Mi A3 and the Xiaomi Redmi Note 9S were only released with a few months difference, Xiaomi Mi A3 is lighter and a little bit thinner.
Xiaomi Redmi Note 9S counts with a bit better performance than Xiaomi Mi A3. Both have a 4 GB RAM memory and 8 processing cores. The Xiaomi Redmi Note 9S counts with a little sharper display than Xiaomi Mi A3, because it has a lot better 1080 x 2400px resolution, a little bit bigger screen and a higher pixel count per inch of display.
Xiaomi Redmi Note 9S features a slightly better camera than Xiaomi Mi A3, and although they both have the same video frame rate, the same aperture, the same (4K) video definition and a 48 MP resolution back-facing camera, the Xiaomi Redmi Note 9S also has a bigger back camera sensor. The Xiaomi Mi A3 counts with a bigger memory capacity for applications, games, photos and videos than Xiaomi Redmi Note 9S, because although it has a SD memory card expansion slot that admits 256 GB smaller, it also counts with 64 GB more internal memory.
The Xiaomi Redmi Note 9S has greater battery duration than Xiaomi Mi A3, because it has 5020mAh of battery capacity instead of 4030mAh.
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