Compare phones
| Global Score | |
| 71.3 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android | Android 10 |
| 2020-06-18 | 2020-06-29 |
| 6.43 x 3.03 x 0.36 inches | 6.61 x 3.02 x 0.32 inches |
| 6.98 ounces | 6.81 ounces |
| Carbon gray, Ocean green and Sunset purple | Black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 189.00 | $ 194.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 396 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8 | 7.3 |
| Performance | |
| MediaTek Helio G80 chipset | Mediatek Helio P35 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Mali G52 MC2 GPU | PowerVR GE8320 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 5.8 | 9.84 |
| Camera | |
| 13.00 MP + 8.00 MP | 16.00 MP + 13.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| -- | 0.33 inches (1/3.06") sensor |
| 1920 x 1080 (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 7.92 | 9.35 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 5020mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| 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 | FM Radio |
Comparison review
The Samsung Galaxy A21 is slightly better than the Xiaomi Redmi 9, having a 76.1 score against 71.3. Samsung Galaxy A21 has Android 10 OS, while Xiaomi Redmi 9 counts with Android OS. Samsung Galaxy A21 is a a little bit lighter and thinner cellphone than the Xiaomi Redmi 9, although both were released only 0 months apart.
The Galaxy A21 features a bit superior processing unit than Xiaomi Redmi 9. They have 3 GB of RAM memory and a Octa-Core processor. The Xiaomi Redmi 9 has a slightly better looking screen than Samsung Galaxy A21, and although they both have a screen of the same size, the Xiaomi Redmi 9 also has a lot better resolution of 1080 x 2340 pixels and a greater pixels number per inch of screen.
Samsung Galaxy A21 has a very superior memory for applications, games, photos and videos than Xiaomi Redmi 9, and although they both have exactly the same 32 GB internal memory capacity, the Samsung Galaxy A21 also has an external SD slot that allows a maximum of 512 GB. Samsung Galaxy A21 has a much better camera than Xiaomi Redmi 9, and although they both have the same video frame rates and the same video definition, the Samsung Galaxy A21 also has a better resolution camera in the back and a larger aperture to take better low light images and videos.
Xiaomi Redmi 9 features improved battery lifetime than Samsung Galaxy A21, because it has a 26 percent greater battery size.
Samsung Galaxy A21 costs a bit more money than the Xiaomi Redmi 9, but you can get a better phone for that few more dollars.
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