Compare phones
| Global Score | |
| 71.7 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 6.0 Marshmallow | Android 10 |
| 2016-11-07 | 2020-06-29 |
| 5.56 x 2.74 x 0.35 inches | 6.61 x 3.02 x 0.32 inches |
| 5.50 ounces | 6.81 ounces |
| 16 777 216 | Black |
| Metal | Plastic and Plastic |
| $ 133.00 | $ 194.00 |
| Display / Screen | |
| 5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 441 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Adreno 506 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 | |
| 13.00 MP + 5.00 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 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.8 | 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 |
| Micro SIM | Nano SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4100mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| 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 4 Prime, getting a general score of 76.1 against 71.7. Both of these devices work with Android OS (operating system), but the Samsung Galaxy A21 has the older 10 version and Xiaomi Redmi 4 Prime has Android 6.0 Marshmallow version. The Samsung Galaxy A21 construction is much newer and a little bit thinner than Xiaomi Redmi 4 Prime's, but it's somewhat heavier.
The Samsung Galaxy A21 has a bit better hardware performance than Xiaomi Redmi 4 Prime. Both have a 3 GB RAM memory and 8 processing cores. The Xiaomi Redmi 4 Prime has a more vivid display than Galaxy A21, because although it has a way smaller screen, it also counts with a better resolution of 1080 x 1920px and much more pixels per inch in the display.
Galaxy A21 captures a bit better pictures and videos than Xiaomi Redmi 4 Prime, and although they both have the same 1920x1080 (Full HD) video quality and the same video frame rate, the Galaxy A21 also has a bigger aperture and a back facing camera with a higher resolution. Galaxy A21 features a much greater storage for applications and games than Xiaomi Redmi 4 Prime, and although they both have exactly the same internal memory capacity, the Galaxy A21 also has a SD card slot that allows up to 512 GB.
Xiaomi Redmi 4 Prime has a bit better battery life than Galaxy A21, because it has a 2% larger battery capacity.
Although Samsung Galaxy A21 is a better device, it costs a lot more than the Xiaomi Redmi 4 Prime, and it doesn't have such a good price and quality relation as Xiaomi Redmi 4 Prime. If you want to save a few dollars, you can get the Xiaomi Redmi 4 Prime, and give up a couple features, but you'll get the most with your savings.
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