Compare phones
| Global Score | |
| 85.5 | 77.8 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 11 |
| 2019-12-27 | 2022-03-15 |
| 6.24 x 2.90 x 0.31 inches | 6.01 x 2.75 x 0.32 inches |
| 6.07 ounces | 6.21 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Blue, Grey and Purple |
| Plastic and Plastic | Aluminum and Glass |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.3 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | AMOLED |
| 405 pixels per inch | 418 pixels per inch |
| -- | 1100 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.9 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 870 SM8250-AC (7 nm) chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 650 GPU |
| 9.27 | 6.21 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 10.1 |
| Camera | |
| 48.00 MP + 32.00 MP | 50.00 MP + 32.00 MP |
| f/2.00 aperture | f/1.90 aperture |
| 26.00mm focal length | 50.00mm focal length |
| 0.5 inches (1/2") 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 |
| 11.55 | 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, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| 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
The Galaxy A51 is a little bit better than the Xiaomi 12X, getting a general score of 85.5 against 77.8. Galaxy A51 is an notably older device than the Xiaomi 12X, but it is just a bit thinner and just a little lighter anyway. Both phones in this review include the same Android 11 operating system.
The Xiaomi 12X counts with a little bit better looking screen than Galaxy A51, because although it has a bit smaller screen, and they both have the same exact resolution of 1080 x 2400px, the Xiaomi 12X also counts with a just a little higher pixels number in each screen inch. The Samsung Galaxy A51 counts with much more memory for games and applications than Xiaomi 12X, and although they both have exactly the same internal storage capacity, the Samsung Galaxy A51 also has a slot for SD memory cards that holds a maximum of 512 GB.
Samsung Galaxy A51 counts with a way better processing power than Xiaomi 12X, although it has less RAM, they both have 8 processing cores. The Xiaomi 12X takes slightly better pictures and videos than Samsung Galaxy A51, because it has a much higher video resolution, a larger camera aperture to take better low light photos and videos and a more megapixels back-facing camera.
Xiaomi 12X has a little better battery duration than Galaxy A51, because it has a 13% bigger battery size.
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