Compare phones
| Global Score | |
| 90.8 | 90.7 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 11 |
| 2020-04-29 | 2021-03-29 |
| 6.26 x 2.90 x 0.34 inches | 6.47 x 2.94 x 0.33 inches |
| 6.60 ounces | 8.25 ounces |
| Prism cube black | Ceramic Black and Ceramic White |
| Aluminum and Plastic | Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 339.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| Super AMOLED | AMOLED |
| 405 pixels per inch | 516 pixels per inch |
| -- | 1700 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9.9 |
| Performance | |
| Samsung Exynos 980 chipset | Qualcomm Snapdragon 888 SM8350 chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Mali-G76 MP5 GPU | Adreno 660 GPU |
| 9.27 | 9.63 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | No SD card slot |
| 15.38 | 13.3 |
| Camera | |
| 48.00 MP + 32.00 MP | 50.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.90 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 11.55 | 12.43 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 8.2 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| 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 5G has a general score of 90.8, which is slightly better than Xiaomi Mi 11 Ultra's global score of 90.7. Although Galaxy A51 5G is older and just a little thicker than the Xiaomi Mi 11 Ultra, it's construction is still a lot lighter. These phones have the same Android 11 OS (Operating System), so both should give very similar OS features.
The Xiaomi Mi 11 Ultra counts with a way better looking display than Galaxy A51 5G, because it has a higher pixels amount in each inch of screen, a higher resolution of 1440 x 3200px and a quite bigger display. The Xiaomi Mi 11 Ultra has a bit faster processing unit than Galaxy A51 5G, and although they both have the same number of cores, the Xiaomi Mi 11 Ultra also has a larger amount of RAM memory.
Galaxy A51 5G features more storage capacity for games and applications than Xiaomi Mi 11 Ultra, because although it has only 128 GB internal memory, it also counts with a SD extension slot that holds up to 1000 GB. The Xiaomi Mi 11 Ultra captures slightly better videos and photos than Galaxy A51 5G, and although they both have a 0.5 inches camera sensor, the Xiaomi Mi 11 Ultra also has a more mega pixels back camera, a lot higher 7680x4320 video definition and a bigger aperture to take better low-light images and video.
The Xiaomi Mi 11 Ultra counts with a little longer battery lifetime than Samsung Galaxy A51 5G, because it has an 11 percent bigger battery size.
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