Compare phones
| Global Score | |
| 91.8 | 78 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | -- |
| 2021-01-29 | 2018-07-27 |
| 5.97 x 2.80 x 0.31 inches | 6.25 x 2.97 x 0.29 inches |
| 6.03 ounces | 5.93 ounces |
| Gray, Phantom pink, Violet and White | Black, Blue, Gold, Pink and Red |
| Aluminum and Plastic | Aluminum |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 6 inches |
| 2400 x 1080 pixels | 2160 x 1080 pixels |
| Dynamic AMOLED | IPS LCD |
| 424 pixels per inch | 402 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 8 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Adreno 512 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 12.00 MP + 10.00 MP | 12.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") sensor | 0.34 inches (1/2.9") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 10.78 | 9.79 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.3 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3010mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 4.96 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy S21 is better than Xiaomi Mi A2, with a 91.8 score against 78. The Galaxy S21 is a incredibly newer device than Xiaomi Mi A2, but it is just a little thicker and just a little heavier. The Samsung Galaxy S21 features a bit better CPU than Xiaomi Mi A2, and although they both have 8 cpu cores, the Samsung Galaxy S21 also has a greater amount of RAM.
Galaxy S21 features a sharper display than Xiaomi Mi A2, because it has a quite better screen density, a slightly better 1080 x 2400px resolution and a little larger screen. Samsung Galaxy S21 shoots better videos and photos than Xiaomi Mi A2, and although they both have a 12 megapixels resolution back-facing camera and a same size aperture, the Samsung Galaxy S21 also has a way larger back-facing camera sensor capturing more light and vivid colors and a lot higher video resolution.
Xiaomi Mi A2 has as much memory capacity to store more games and applications as the Samsung Galaxy S21 one, they have equal 128 GB internal storage capacity. The Galaxy S21 features longer battery lifetime than Xiaomi Mi A2, because it has a 4000mAh battery capacity instead of 3010mAh.
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