Compare phones
| Global Score | |
| 85.5 | 82.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 10, 9.0 Pie |
| 2019-12-27 | 2019-06-17 |
| 6.24 x 2.90 x 0.31 inches | 6.17 x 2.93 x 0.35 inches |
| 6.07 ounces | 6.74 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Carbon Black, Flame Red and Glacier Blue |
| Plastic and Plastic | Metal and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | AMOLED |
| 405 pixels per inch | 403 pixels per inch |
| -- | 430 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.4 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 618 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 10.1 |
| Camera | |
| 48.00 MP + 32.00 MP | 48.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") 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 (240 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 11.55 | 11.66 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy A51 has an overall score of 85.5, which is a bit better than Xiaomi Mi 9T's 82.2 score. Even when Samsung Galaxy A51 and the Xiaomi Mi 9T were released only a couple months apart, Samsung Galaxy A51 is just a bit lighter and somewhat thinner. These phones use Android operating system, but Samsung Galaxy A51 has the newer 11 version while Xiaomi Mi 9T has Android 10 version, so it gives some extra features.
Xiaomi Mi 9T has a slightly better looking screen than Samsung Galaxy A51, although it has a bit smaller display, a little bit lower screen pixel density and a little worse resolution of 1080 x 2340. The Galaxy A51 and the Xiaomi Mi 9T both have incredibly similar processors, and although the Xiaomi Mi 9T has more RAM memory, they both have the same number of cores.
Samsung Galaxy A51 features a way bigger storage capacity for apps and games than Xiaomi Mi 9T, and although they both have the same 128 GB internal memory capacity, the Samsung Galaxy A51 also has an external memory card slot that holds a maximum of 512 GB. The Xiaomi Mi 9T and Galaxy A51 have extremely similar batteries.
Xiaomi Mi 9T captures a bit better pictures and videos than Galaxy A51, and although they both have the same video frame rates, the same (4K) video resolution, a same size back-facing camera sensor and a same resolution camera in the back, the Xiaomi Mi 9T also has a larger aperture to take better captures in low light environments.
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