Compare phones
| Global Score | |
| 76.5 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11, 10 |
| 2017-04-28 | 2019-12-27 |
| 5.72 x 2.78 x 0.29 inches | 6.24 x 2.90 x 0.31 inches |
| 5.93 ounces | 6.07 ounces |
| Black, Blue and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Glass and Metal | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 421.00 | $ 282.00 |
| 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 9611 chipset |
| Kryo 280, 64-bit, 10 nm (Octa-Core 2457 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 | |
| 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 | |
| 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 (240 fps) (HD) slow motion video |
| 9.68 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| -- | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 3 | 6.7 |
| Battery Life | |
| 3350mAh Li - Polymer 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 |
| 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
The Samsung Galaxy A51 is much better than the Xiaomi Mi 6, getting a overall score of 85.5 against 76.5. The Samsung Galaxy A51 body is much newer, but a little bit thicker and just a little bit heavier than the Xiaomi Mi 6. The Xiaomi Mi 6 has a little more vivid screen than Samsung Galaxy A51, because although it has a little bit worse resolution of 1080 x 1920 and a much smaller display, it also counts with a quite greater display pixel density.
Galaxy A51 features a lot bigger memory to install games and applications than Xiaomi Mi 6, and although they both have equal internal storage capacity, the Galaxy A51 also has a slot for an SD memory card that admits up to 512 GB. Xiaomi Mi 6 has a little faster processor than Samsung Galaxy A51, and although they both have 8 cores, the Xiaomi Mi 6 also has more RAM memory.
The Samsung Galaxy A51 has better battery performance than Xiaomi Mi 6, because it has 4000mAh of battery capacity. The Galaxy A51 captures much clearer photographs and videos than Xiaomi Mi 6, because although it has a smaller diafragm aperture which is not recommended for shooting images and video in low light environments, and they both have the same 3840x2160 video resolution and the same 30 frames per second video frame rates, the Galaxy A51 also counts with a back-facing camera with much more MP and a lot bigger back-facing camera sensor which gives a lot higher photo and video quality.
Despite of being the best phone between the ones we are comparing, Samsung Galaxy A51 is also a bargain compared to others.
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