Compare phones
| Global Score | |
| 85.5 | 90.7 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 11 |
| 2019-12-27 | 2021-03-29 |
| 6.24 x 2.90 x 0.31 inches | 6.47 x 2.94 x 0.33 inches |
| 6.07 ounces | 8.25 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Ceramic Black and Ceramic White |
| Plastic and Plastic | Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| 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 9611 chipset | Qualcomm Snapdragon 888 SM8350 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 660 GPU |
| 9.27 | 9.63 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 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 (240 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 |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 8.2 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 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
Xiaomi Mi 11 Ultra has a global score of 90.7, which is slightly better than the Galaxy A51's general score of 85.5. The Xiaomi Mi 11 Ultra construction is newer than Galaxy A51's, but it is notably heavier and just a little bit thicker. Both phones we are comparing work with the same Android 11 OS.
The Xiaomi Mi 11 Ultra features a bit better performance than Galaxy A51, and although they both have the same number of cores, the Xiaomi Mi 11 Ultra also has more RAM memory. The Xiaomi Mi 11 Ultra counts with a much more vibrant display than Samsung Galaxy A51, because it has a higher resolution of 1440 x 3200px, a quite bigger screen and a better pixels density.
Samsung Galaxy A51 has a slightly bigger storage for applications and games than Xiaomi Mi 11 Ultra, because although it has just 128 GB internal memory capacity, it also counts with a slot for SD memory cards that allows a maximum of 512 GB. Xiaomi Mi 11 Ultra takes a little bit better pictures and videos than Galaxy A51, and although they both have a same size back camera sensor, the Xiaomi Mi 11 Ultra also has a higher resolution camera, a bigger aperture for better low-light captures and video and a much higher video resolution.
The Xiaomi Mi 11 Ultra counts with superior battery life than Galaxy A51, because it has 5000mAh of battery capacity against 4000mAh.
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