Compare phones
| Global Score | |
| 76 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 6.0 Marshmallow | Android 10 |
| 2016-11-01 | 2020-06-19 |
| 6.15 x 3.04 x 0.30 inches | 6.44 x 2.96 x 0.35 inches |
| 5.86 ounces | 6.77 ounces |
| Black and Silver | Black, Blue, Red and White |
| Aluminum and Glass | -- |
| $ 516.00 | -- |
| Display / Screen | |
| 5.7 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| OLED | TFT |
| 386 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.9 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 821 MSM8996 Pro chipset | Samsung Exynos 850 chipset |
| Kryo, 64-bit (Quad-Core 2350 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 530 GPU | Mali-G76 GPU |
| 9.09 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 9.84 |
| Camera | |
| 23.00 MP + 8.00 MP | 48.00 MP + 13.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.69 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | 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, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4070mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
The Galaxy A21s has a score of 77.7, which is slightly better than Xiaomi Mi Note 2's overall score of 76. The Galaxy A21s is a incredibly newer phone than the Xiaomi Mi Note 2, although it's thicker and heavier. Both of these phones work with Android OS, but the Galaxy A21s has older 10 version and Xiaomi Mi Note 2 has Android 6.0 Marshmallow version.
Xiaomi Mi Note 2 has a little sharper display than Samsung Galaxy A21s, because although it has a quite smaller display, it also counts with a greater pixels quantity per display inch and a better resolution of 1080 x 1920px. Galaxy A21s counts with a processing unit that is very similar to the processing unit in Xiaomi Mi Note 2, because although the Galaxy A21s has a lower amount of RAM, it also counts with more processing cores.
The Samsung Galaxy A21s counts with a very superior camera than Xiaomi Mi Note 2, and although they both have the same video frame rate, the same 1920x1080 video resolution and a F2 aperture, the Samsung Galaxy A21s also has a camera in the back with way more megapixels and a way bigger camera sensor.
The Xiaomi Mi Note 2 counts with a slightly better memory capacity to store more apps and games than Galaxy A21s, because although it has no SD extension slot, it also counts with more internal memory capacity. Galaxy A21s has superior battery duration than Xiaomi Mi Note 2, because it has 5000mAh of battery capacity against 4070mAh.
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