Compare phones
| Global Score | |
| 81.2 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11, 10 |
| 2017-10-10 | 2019-12-27 |
| 5.98 x 2.97 x 0.30 inches | 6.24 x 2.90 x 0.31 inches |
| 6.53 ounces | 6.07 ounces |
| Black | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Aluminum and Ceramic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 614.00 | $ 282.00 |
| Display / Screen | |
| 6 inches | 6.5 inches |
| 2160 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 402 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 835 MSM8998 chipset | Samsung Exynos 9611 chipset |
| Kryo 280, 64-bit, 10 nm (Octa-Core 2450 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 540 GPU | Mali-G72 MP3 GPU |
| 9.45 | 9.27 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 14.14 |
| Camera | |
| 12.00 MP + 5.00 MP | 48.00 MP + 32.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.34 inches (1/2.9") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.57 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3400mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.36 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | 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 | FM Radio |
Comparison review
Samsung Galaxy A51 is just a bit better than the Xiaomi Mi MIX 2, having an 85.5 score against 81.2. Samsung Galaxy A51's design is much newer and just a little lighter than the Xiaomi Mi MIX 2's, although it's a bit thicker. Xiaomi Mi MIX 2 and Galaxy A51 both feature quite similar displays, although the Galaxy A51 also has a bit larger screen, a little bit more pixels per inch of screen and a bit higher resolution of 1080 x 2400.
The Xiaomi Mi MIX 2 has a little better processing power than Galaxy A51, and although they both have 8 cpu cores, the Xiaomi Mi MIX 2 also has a higher amount of RAM memory. The Samsung Galaxy A51 counts with a little bit better memory capacity for applications, games, photos and videos than Xiaomi Mi MIX 2, because although it has 0 less internal storage, it also counts with a slot for external memory cards that supports a maximum of 512 GB.
Galaxy A51 counts with better battery lifetime than Xiaomi Mi MIX 2, because it has an 18% greater battery size. The Galaxy A51 has a greater camera than Xiaomi Mi MIX 2, and although they both have the same (4K) video definition, the same diafragm aperture and the same video frame rate, the Galaxy A51 also has a back camera with much more megapixels and a way larger sensor which offers a way higher image and video quality.
Despite of being the best phone of the ones we compare here, Galaxy A51 is also a lot cheaper, making it an easy decision.
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