Compare phones
| Global Score | |
| 76.7 | 90.8 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 11, 10 |
| 2021-05-27 | 2020-04-29 |
| 6.23 x 2.96 x 0.33 inches | 6.26 x 2.90 x 0.34 inches |
| 6.70 ounces | 6.60 ounces |
| Moonlight White, Neptune Blue and Space Black, | Prism cube black |
| Glass and Plastic | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 339.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 409 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| Performance | |
| MediaTek Helio G85 MT6769Z chipset | Samsung Exynos 980 chipset |
| Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali G52 MC2 GPU | Mali-G76 MP5 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 10.02 | 15.38 |
| 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 |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 11 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.6 | 10.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | 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 A51 5G has a score of 90.8, which is much better than the Xiaomi Redmi Note 8 2021's score of 76.7. The Samsung Galaxy A51 5G design is a bit lighter than the Xiaomi Redmi Note 8 2021, although it is a little thicker and was released around a year before. Both of these devices use the same Android 11 OS, so both of them should offer the same OS features.
Xiaomi Redmi Note 8 2021 and Galaxy A51 5G count with really similar displays, because although the Galaxy A51 5G has a just a bit worse count of pixels per inch in the screen, it also counts with a quite larger screen and a slightly better resolution of 1080 x 2400px. Galaxy A51 5G features a way bigger storage capacity to store more apps and games than Xiaomi Redmi Note 8 2021, because it has a slot for external memory cards that admits a maximum of 1000 GB and more internal memory.
Samsung Galaxy A51 5G features a little bit better processing power than Xiaomi Redmi Note 8 2021, and although they both have 8 processing cores, the Samsung Galaxy A51 5G also has a larger amount of RAM. The Samsung Galaxy A51 5G features a little better battery life than Xiaomi Redmi Note 8 2021, because it has a 13% larger battery capacity.
The Galaxy A51 5G captures just a bit better photos and videos than Xiaomi Redmi Note 8 2021, because although it has a smaller aperture which is not good for capturing photos and/or video in poorly lited environments, and they both have the same resolution back facing camera and a 0.5 inches back camera sensor, the Galaxy A51 5G also counts with a way better 3840x2160 (4K) video resolution.
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