Compare phones
| Global Score | |
| 83.2 | 87.7 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 10 |
| 2019-03-06 | 2020-09-11 |
| 6.20 x 2.94 x 0.30 inches | 6.45 x 3.00 x 0.37 inches |
| 6.10 ounces | 7.51 ounces |
| Black, Blue and Purple | Black and White |
| Glass (Corning Gorilla Glass 5) and Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.7 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED Plus |
| 403 pixels per inch | 385 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 8 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 640 GPU | Adreno 618 GPU |
| 9.63 | 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 | |
| 48.00 MP + 20.00 MP | 64.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | -- |
| 12.1 | 11.88 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3300mAh Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.28 | 8.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| 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 Samsung Galaxy M51 has an overall score of 87.7, which is a bit better than the Xiaomi Mi 9's 83.2 general score. Samsung Galaxy M51's body is newer than Xiaomi Mi 9's, but it is somewhat thicker and somewhat heavier. Xiaomi Mi 9 has a bit more vivid screen than Galaxy M51, because although it has a bit smaller display, and they both have the same resolution of 1080 x 2340px, the Xiaomi Mi 9 also counts with a little bit higher display pixels density.
Xiaomi Mi 9 features a little bit better performance than Galaxy M51. They have 6 GB of RAM memory and the same number of cores. The Samsung Galaxy M51 has a much greater storage to install applications and games or saving photos and videos than Xiaomi Mi 9, and although they both have exactly the same 128 GB internal storage, the Samsung Galaxy M51 also has a slot for an external memory card that allows up to 512 GB.
The Xiaomi Mi 9 features a little bit better camera than Samsung Galaxy M51, although it has a tinier back camera sensor capturing lower quality images, a camera with way less MP resolution and a lower 3840x2160 (4K) video definition, they both have a F1.8 camera aperture. Galaxy M51 features a much better battery performance than Xiaomi Mi 9, because it has 7000mAh of battery capacity.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.