Compare phones
| Global Score | |
| 75 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie, 8.1 Oreo, 8.0 Oreo, 7.1 Nougat | Android 10 |
| 2017-09-12 | 2020-06-29 |
| 6.12 x 2.98 x 0.29 inches | 6.61 x 3.02 x 0.32 inches |
| 5.82 ounces | 6.81 ounces |
| Black, Gold and Pink | Black |
| Metal | Plastic and Plastic |
| -- | $ 194.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 401 pixels per inch | 270 pixels per inch |
| 450 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2000 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 506 GPU | PowerVR GE8320 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.78 | 9.84 |
| Camera | |
| 12.00 MP + 5.00 MP | 16.00 MP + 13.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| -- | 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 (120 fps) (HD) slow motion video | -- |
| 9.35 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3080mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy A21 has a score of 76.1, which is just a bit better than the Xiaomi Mi A1's 75 general score. Samsung Galaxy A21's design is extremely newer, but somewhat heavier and just a little bit thicker than the Xiaomi Mi A1. Both of these phones work with Android OS (Operating System), but the Samsung Galaxy A21 has 10 version and Xiaomi Mi A1 has Android 9.0 Pie version.
The Galaxy A21 features a bit better performance than Xiaomi Mi A1, although it has lesser RAM memory, they both have 8 processing cores. The Xiaomi Mi A1 features a much better display than Galaxy A21, because although it has a bit smaller screen, it also counts with a higher 1080 x 1920 pixels resolution and a better screen pixels density.
Xiaomi Mi A1 and Samsung Galaxy A21 both have quite similar cameras, and although the Samsung Galaxy A21 has a back facing camera with way more mega pixels and a larger diafragm aperture to capture better low-light images and video, they both have the same video frame rate and the same (Full HD) video quality.
The Xiaomi Mi A1 counts with a bit bigger storage for apps and games than Galaxy A21, because although it has a SD memory card expansion slot that allows 256 GB smaller, it also counts with more internal memory capacity. The Galaxy A21 counts with better battery lifetime than Xiaomi Mi A1, because it has 4000mAh of battery capacity.
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