Compare phones
| Global Score | |
| 78.8 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 12 | Android 10 |
| 2021-12-28 | 2020-06-29 |
| 6.01 x 2.75 x 0.32 inches | 6.61 x 3.02 x 0.32 inches |
| 6.31 ounces | 6.81 ounces |
| Black, Blue, Green and Pink | Black |
| Aluminum and Glass | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | IPS LCD |
| 418 pixels per inch | 270 pixels per inch |
| 1100 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.9 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 8 Gen1 SM8450 (4 nm) chipset | Mediatek Helio P35 chipset |
| processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 730 GPU | PowerVR GE8320 GPU |
| 6.21 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 9.84 |
| Camera | |
| 50.00 MP + 32.00 MP | 16.00 MP + 13.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.64 inches (1/1.56") sensor | 0.33 inches (1/3.06") sensor |
| 7680 x 4320 (24 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | -- |
| 12.54 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 4500mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.32 | 5.92 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| 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 12 has a general score of 78.8, which is a bit better than the Galaxy A21's global score of 76.1. These phones use Android operating system, but Xiaomi 12 has newer 12 version while Galaxy A21 has Android 10 version, providing you a couple nice extra features. Xiaomi 12's body has the same thickness than Galaxy A21, but it is just a bit lighter.
The Samsung Galaxy A21 features a very superior performance than Xiaomi 12, although it has a smaller amount of RAM, they both have a Octa-Core processor. Xiaomi 12 features a much more vibrant display than Galaxy A21, because although it has a bit smaller screen, it also counts with a way higher 1080 x 2400 resolution and a lot greater number of pixels per inch of screen.
Xiaomi 12 counts with just a bit bigger memory capacity to store more apps and games than Galaxy A21, because although it has no SD memory card expansion slot, it also counts with 96 GB more internal storage capacity. The Xiaomi 12 features just a little better battery duration than Samsung Galaxy A21, because it has a 13 percent more battery capacity.
The Xiaomi 12 counts with a very superior camera than Galaxy A21, because although it has a smaller camera aperture which is not good for low light photos and video, it also counts with a lot larger back camera sensor capturing way better quality videos and pictures, a much higher video definition and a back camera with a lot better resolution.
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