Compare phones
| Global Score | |
| 79.2 | 77.8 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 11, 10, 9.0 Pie | Android 11 |
| 2019-07-24 | 2022-03-15 |
| 6.04 x 2.83 x 0.33 inches | 6.01 x 2.75 x 0.32 inches |
| 6.13 ounces | 6.21 ounces |
| Blue, Gray and White | Blue, Grey and Purple |
| Glass (Corning Gorilla Glass 5) and Plastic | Aluminum and Glass |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.1 inches | 6.3 inches |
| 1560 x 720 pixels | 2400 x 1080 pixels |
| Super AMOLED | AMOLED |
| 282 pixels per inch | 418 pixels per inch |
| -- | 1100 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.3 | 8.9 |
| Performance | |
| Qualcomm Snapdragon 665 chipset | Qualcomm Snapdragon 870 SM8250-AC (7 nm) chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | processor |
| 4 GB RAM | 8 GB RAM |
| Adreno 610 GPU | Adreno 650 GPU |
| 9.09 | 6.21 |
| 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 | 50.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| -- | 50.00mm focal length |
| 0.43 inches (1/2.3") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 11.44 | 11.88 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 4030mAh Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| 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 A3 is a little bit better than Xiaomi 12X, having a score of 79.2 against 77.8. Although the Xiaomi Mi A3 is extremely older and a little bit thicker than Xiaomi 12X, it's design is still just a little bit lighter. Both phones in this comparison include the same Android 11 OS, so you shouldn't see any differences in that aspect.
The Xiaomi Mi A3 counts with a lot better processing power than Xiaomi 12X, although it has a smaller amount of RAM memory, they both have a Octa-Core CPU. The Xiaomi 12X counts with a much sharper display than Xiaomi Mi A3, because it has a greater pixel density, a little bit bigger display and a way better 1080 x 2400px resolution.
The Xiaomi 12X counts with a little bit better camera than Xiaomi Mi A3, because although it has a smaller aperture which is worse for low light captures and video, it also counts with a much higher 7680x4320 video quality and a back camera with a better 50 MP resolution. The Xiaomi Mi A3 has a superior memory to store more apps and games than Xiaomi 12X, and although they both have equal 128 GB internal memory, the Xiaomi Mi A3 also has an external memory slot that admits a maximum of 256 GB.
The Xiaomi 12X has a little longer battery lifetime than Xiaomi Mi A3, because it has 4500mAh of battery capacity.
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