Compare phones
| Global Score | |
| 77.7 | 76 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 6.0 Marshmallow |
| 2020-06-19 | 2016-11-01 |
| 6.44 x 2.96 x 0.35 inches | 6.15 x 3.04 x 0.30 inches |
| 6.77 ounces | 5.86 ounces |
| Black, Blue, Red and White | Black and Silver |
| -- | Aluminum and Glass |
| -- | $ 516.00 |
| Display / Screen | |
| 6.5 inches | 5.7 inches |
| 1600 x 720 pixels | 1920 x 1080 pixels (Full HD) |
| TFT | OLED |
| 270 pixels per inch | 386 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 7.9 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 821 MSM8996 Pro chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo, 64-bit (Quad-Core 2350 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G76 GPU | Adreno 530 GPU |
| 9.09 | 9.09 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 23.00 MP + 8.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.38 inches (1/2.6") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (4K) video resolution |
| 10.78 | 8.69 |
| 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 |
| 6.7 | 6.1 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4070mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 6 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Galaxy A21s has an overall score of 77.7, which is a little bit better than the Xiaomi Mi Note 2's 76 general score. Galaxy A21s's body is incredibly newer, but somewhat thicker and heavier than Xiaomi Mi Note 2. Both devices in this review include Android OS (Operating System), but the Galaxy A21s has the older 10 version and Xiaomi Mi Note 2 has Android 6.0 Marshmallow version.
Xiaomi Mi Note 2's CPU is just as good as the processor in Galaxy A21s, because although the Xiaomi Mi Note 2 has 4 less CPU cores (although faster), it also counts with more RAM. The Xiaomi Mi Note 2 has a little more vivid display than Galaxy A21s, because although it has a bit smaller display, it also counts with more pixels per inch of display and a better 1080 x 1920 resolution.
Galaxy A21s has a much better camera than Xiaomi Mi Note 2, and although they both have the same video frame rate, the same 1920x1080 (Full HD) video quality and a same size aperture, the Galaxy A21s also has a back facing camera with a much higher 48 MP resolution and a lot larger sensor which gives a lot higher image and video quality.
The Xiaomi Mi Note 2 counts with just a bit more memory to install applications and games than Samsung Galaxy A21s, because although it has no SD card slot, it also counts with 128 GB internal memory. Galaxy A21s has superior battery performance than Xiaomi Mi Note 2, because it has a 23% more battery size.
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