Compare phones
| Global Score | |
| 74.6 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 10 |
| 2019-10-16 | 2020-06-29 |
| 6.23 x 2.96 x 0.33 inches | 6.61 x 3.02 x 0.32 inches |
| 6.70 ounces | 6.81 ounces |
| Cosmic Purple, Moonlight White, Nebula Purple, Neptune Blue and Space Black | Black |
| Glass and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 227.00 | $ 194.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 409 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 665 SM6125 chipset | Mediatek Helio P35 chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Adreno 610 GPU | PowerVR GE8320 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.12 | 9.84 |
| Camera | |
| 48.00 MP + 13.00 MP | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.5 inches (1/2") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 11.44 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | 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 A21 is just a bit better than Xiaomi Redmi Note 8, having a global score of 76.1 against 74.6. Even though the Samsung Galaxy A21 and the Xiaomi Redmi Note 8 were released only 9 months apart, the Samsung Galaxy A21 design is a little bit heavier but just a little bit thinner. Both devices we are comparing here have the same Android 10 operating system.
Galaxy A21 counts with a bit more powerful processor than Xiaomi Redmi Note 8. Both have the same number of cores and the same RAM memory amount. The Xiaomi Redmi Note 8 features a brighter screen than Galaxy A21, because although it has a little bit smaller screen, it also counts with way more pixels per inch of display and a way better 1080 x 2340 resolution.
Xiaomi Redmi Note 8 features a much better camera than Galaxy A21, and although they both have a F1.8 camera aperture, the Xiaomi Redmi Note 8 also has a much larger back camera sensor taking way higher quality pictures, a lot higher 48 mega pixels resolution camera and a lot higher (4K) video quality.
Galaxy A21 features much more memory to store more games and applications than Xiaomi Redmi Note 8, and although they both have the same 32 GB internal storage capacity, the Galaxy A21 also has a slot for external memory cards that admits up to 512 GB. Galaxy A21 and Xiaomi Redmi Note 8 have quite similar battery durations.
In addition to being the best phone between the ones we are comparing here, Samsung Galaxy A21 is also the cheapest.
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