| Global Score | |
| 71.6 | 78.8 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 4.4.2, 4.2.1 | Android 12 |
| 0000-00-00 | 2021-12-28 |
| 5.67 x 2.90 x 0.32 inches | 6.01 x 2.75 x 0.32 inches |
| 5.11 ounces | 6.31 ounces |
| Black | Black, Blue, Green and Pink |
| -- | Aluminum and Glass |
| -- | Scratch-Resistant Glass |
| $ 300.00 | -- |
| Display / Screen | |
| 5 inches | 6.3 inches |
| 1080 x 1920 pixels (Full HD) | 2400 x 1080 pixels |
| IPS LCD | AMOLED |
| 441 pixels per inch | 418 pixels per inch |
| -- | 1100 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.9 |
| Performance | |
| Qualcomm Snapdragon 800 8974-AB chipset | Qualcomm Snapdragon 8 Gen1 SM8450 (4 nm) chipset |
| Krait 400 (Quad-Core 2360 MHz) processor | processor |
| 2 GB (933 MHz) RAM | 8 GB RAM |
| Adreno 330 (450 MHz) GPU | Adreno 730 GPU |
| 9.27 | 6.21 |
| 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 | 50.00 MP + 32.00 MP |
| f/2.20 aperture | f/1.90 aperture |
| -- | 26.00mm focal length |
| -- | 0.64 inches (1/1.56") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 8.91 | 12.54 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| SIM | Nano SIM, Dual SIM |
| 4.6 | 10.6 |
| Battery Life | |
| 3050mAh Li-Ion Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.04 | 6.32 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.2 |
| 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 |
The Xiaomi 12 is much better than Xiaomi Mi-3, having a global score of 78.8 against 71.6. Xiaomi 12's design has the same thickness than the Xiaomi Mi-3, but it is somewhat heavier. These devices include Android OS (Operating System), but the Xiaomi 12 has older 12 version while Xiaomi Mi-3 has Android 4.4.2 version.
Xiaomi Mi-3 features a much greater processing power than Xiaomi 12, because although it has 4 less CPU cores (although they are faster) and a lower amount of RAM, it also counts with an extra GPU. The Xiaomi Mi-3 has a little more vivid display than Xiaomi 12, because although it has a bit worse resolution of 1920 x 1080px and a lot smaller display, it also counts with a bit greater pixel count per inch in the screen.
Xiaomi 12 counts with a way bigger memory capacity to install applications and games than Xiaomi Mi-3, because it has 64 GB more internal storage capacity. Xiaomi 12 captures greater photos and videos than Xiaomi Mi-3, because it has a way higher 7680x4320 video resolution, a camera in the back with way more mega pixels and a larger camera aperture to take better photography and videos in poorly lited environments.
Xiaomi 12 counts with a very superior battery lifetime than Xiaomi Mi-3, because it has 4500mAh of battery capacity.
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