Compare phones
| Global Score | |
| 87.7 | 76.6 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 10 |
| 2020-09-11 | 2020-05-20 |
| 6.45 x 3.00 x 0.37 inches | 6.39 x 3.04 x 0.35 inches |
| 7.51 ounces | 7.02 ounces |
| Black and White | Forest green, Midnight gray and Polar white |
| Plastic and Plastic | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 283.00 |
| Display / Screen | |
| 6.7 inches | 6.5 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED Plus | IPS LCD |
| 385 pixels per inch | 396 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8 |
| Performance | |
| Qualcomm Snapdragon 730 SM7150-AA chipset | MediaTek Helio G85 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 618 GPU | Mali G52 MC2 GPU |
| 9.27 | 9.09 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 128 GB) external memory slot |
| 14.14 | 10.02 |
| Camera | |
| 64.00 MP + 32.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 11.88 | 11 |
| 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 | |
| 7000mAh Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 8.32 | 6.8 |
| 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
Samsung Galaxy M51 has a score of 87.7, which is better than the Xiaomi Redmi Note 9's 76.6 score. These phones use the same Android 10 OS, so both should give very similar OS features. Despite being the best in this review, it must be noted that it's also just a bit thicker and just a little heavier.
Galaxy M51 and Xiaomi Redmi Note 9 feature incredibly similar displays, because although the Xiaomi Redmi Note 9 has a bit smaller display, and they both have an equal 1080 x 2340 resolution, it also counts with a just a bit higher display density. Samsung Galaxy M51 features a bit better performance than Xiaomi Redmi Note 9, and although they both have the same number of cores, the Samsung Galaxy M51 also has more RAM.
Galaxy M51 shoots a little bit better photographs and videos than Xiaomi Redmi Note 9, and although they both have the same aperture, the Galaxy M51 also has a bigger back-facing camera sensor shooting higher quality videos and photos, a camera with lot more MP and a much better 3840x2160 video definition.
Galaxy M51 has a very superior memory to install applications and games than Xiaomi Redmi Note 9, because it has a slot for an external memory card that supports up to 512 GB and more internal memory. The Samsung Galaxy M51 has a way better battery duration than Xiaomi Redmi Note 9, because it has a 39% larger battery size.
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