Compare phones
| Global Score | |
| 76 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 6.0 Marshmallow | Android 11, 10 |
| 2016-11-01 | 2019-12-27 |
| 6.15 x 3.04 x 0.30 inches | 6.24 x 2.90 x 0.31 inches |
| 5.86 ounces | 6.07 ounces |
| Black and Silver | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Aluminum and Glass | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 516.00 | $ 282.00 |
| Display / Screen | |
| 5.7 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| OLED | Super AMOLED |
| 386 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 7.9 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 821 MSM8996 Pro chipset | Samsung Exynos 9611 chipset |
| Kryo, 64-bit (Quad-Core 2350 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 530 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 23.00 MP + 8.00 MP | 48.00 MP + 32.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 8.69 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4070mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy A51 has a score of 85.5, which is better than Xiaomi Mi Note 2's 76 score. Both phones in this review include Android operating system, but the Galaxy A51 has 11 version and Xiaomi Mi Note 2 has Android 6.0 Marshmallow. Although Galaxy A51 is a lot newer than Xiaomi Mi Note 2, it's just a little bit heavier and just a little bit thicker.
Galaxy A51 features a little more vivid screen than Xiaomi Mi Note 2, because it has a bit bigger display, a bit higher count of pixels per display inch and a slightly higher resolution of 1080 x 2400 pixels. The Samsung Galaxy A51 counts with a little bit better processing power than Xiaomi Mi Note 2, because although it has a smaller amount of RAM memory, it also counts with a greater number of cores.
Galaxy A51 counts with a lot better camera than Xiaomi Mi Note 2, and although they both have the same video resolution, a same size diafragm aperture and the same video frame rate, the Galaxy A51 also has a lot bigger sensor providing a lot higher image quality and a lot better 48 megapixels resolution back-facing camera.
The Samsung Galaxy A51 counts with a way bigger memory capacity to store more apps and games than Xiaomi Mi Note 2, and although they both have equal 128 GB internal memory, the Samsung Galaxy A51 also has a slot for SD memory cards that supports a maximum of 512 GB. Xiaomi Mi Note 2 has a little longer battery life than Samsung Galaxy A51, because it has 4070mAh of battery capacity instead of 4000mAh.
The Samsung Galaxy A51 not only is the best phones of the ones in this comparison, but it's also a bargain compared to the other ones.
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