Compare phones
| Global Score | |
| 83 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 11, 10 |
| 2021-01-18 | 2019-12-27 |
| 6.37 x 3.04 x 0.36 inches | 6.24 x 2.90 x 0.31 inches |
| 7.02 ounces | 6.07 ounces |
| Daybreak purple and Nightfall black | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 282.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 396 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| Performance | |
| MediaTek Dimensity 800U chipset | Samsung Exynos 9611 chipset |
| ARM Cortex-A76 and ARM Cortex-A55, 64-bit, 7 nm (Octa-Core 2400 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G57 MC3 GPU | Mali-G72 MP3 GPU |
| 9.36 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 14.14 |
| Camera | |
| 48.00 MP + 13.00 MP | 48.00 MP + 32.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 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 |
| 1920 x 1080 (120 fps) (Full HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 11.55 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, 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 |
| 10.7 | 6.7 |
| Battery Life | |
| 5000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.1 | 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 A51 has a score of 85.5, which is just a bit better than Xiaomi Redmi Note 9T's 83 general score. Although Samsung Galaxy A51 is older than Xiaomi Redmi Note 9T, it's design is somewhat lighter and somewhat thinner. Both of these phones use Android OS, but the Samsung Galaxy A51 has a more recent 11 version while Xiaomi Redmi Note 9T has Android 10 version, providing some extra features.
The Xiaomi Redmi Note 9T features a bit superior CPU than Galaxy A51. They have a Octa-Core CPU and a 4 GB RAM. The Galaxy A51 and Xiaomi Redmi Note 9T count with very similar displays, and although the Galaxy A51 has a just a bit higher pixels number per display inch and a slightly higher resolution of 1080 x 2400, they both have a same size display.
Galaxy A51 counts with a much bigger storage for applications, games, photos and videos than Xiaomi Redmi Note 9T, and although they both have an external memory card slot that supports up to 512 GB, the Galaxy A51 also has more internal memory capacity. The Xiaomi Redmi Note 9T and the Galaxy A51 both feature similar cameras, and although the Galaxy A51 has a tinier aperture which is not so good for capturing photographs or videos in poorly lited environments, they both have the same video frame rate, the same back camera sensor size, a same resolution camera in the back and the same video resolution.
The Xiaomi Redmi Note 9T counts with improved battery life than Galaxy A51, because it has a 5000mAh battery capacity.
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