Compare phones
| Global Score | |
| 76.5 | 90.8 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11, 10 |
| 2017-04-28 | 2020-04-29 |
| 5.72 x 2.78 x 0.29 inches | 6.26 x 2.90 x 0.34 inches |
| 5.93 ounces | 6.60 ounces |
| Black, Blue and White | Prism cube black |
| Glass and Metal | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| $ 421.00 | $ 339.00 |
| Display / Screen | |
| 5.2 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 424 pixels per inch | 405 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.7 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 835 MSM8998 chipset | Samsung Exynos 980 chipset |
| Kryo 280, 64-bit, 10 nm (Octa-Core 2457 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 540 GPU | Mali-G76 MP5 GPU |
| 9.45 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 1000 GB) external memory slot |
| 10.1 | 15.38 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 32.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 27.00mm focal length | 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 (480 fps) (HD) slow motion video |
| 9.68 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| -- | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 3 | 10.7 |
| Battery Life | |
| 3350mAh Li - Polymer Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.36 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| 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
Galaxy A51 5G is much better than the Xiaomi Mi 6, having a 90.8 score against 76.5. The Galaxy A51 5G is a notably newer phone than the Xiaomi Mi 6, although it's somewhat thicker and heavier. The Xiaomi Mi 6 features a bit better processing power than Galaxy A51 5G. Both have the same RAM amount and the same number of cores.
Xiaomi Mi 6 counts with a little bit better display than Samsung Galaxy A51 5G, because although it has a much smaller display and a little bit worse 1080 x 1920px resolution, it also counts with a little bit higher display pixels density. Samsung Galaxy A51 5G counts with a superior memory to install applications and games than Xiaomi Mi 6, and although they both have the same 128 GB internal memory capacity, the Samsung Galaxy A51 5G also has a slot for an SD memory card that holds a maximum of 1000 GB.
Galaxy A51 5G features improved battery lifetime than Xiaomi Mi 6, because it has a 34 percent larger battery size. Samsung Galaxy A51 5G takes much better photos and videos than Xiaomi Mi 6, because although it has a smaller diafragm aperture which is not good for taking photographs or videos in low-light situations, and they both have the same video frame rate and the same 3840x2160 video definition, the Samsung Galaxy A51 5G also counts with a camera with a lot better 48 megapixels resolution and a lot bigger back-facing camera sensor taking more light and vivid colors.
In addition to being the best phone of the ones in this comparison, the Galaxy A51 5G is also a bargain compared to others.
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