Compare phones
| Global Score | |
| 76.1 | 78 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | -- |
| 2020-06-29 | 2018-07-27 |
| 6.61 x 3.02 x 0.32 inches | 6.25 x 2.97 x 0.29 inches |
| 6.81 ounces | 5.93 ounces |
| Black | Black, Blue, Gold, Pink and Red |
| Plastic and Plastic | Aluminum |
| -- | Scratch-Resistant Glass |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 6 inches |
| 1600 x 720 pixels | 2160 x 1080 pixels |
| IPS LCD | IPS LCD |
| 270 pixels per inch | 402 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8.1 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| PowerVR GE8320 GPU | Adreno 512 GPU |
| 9.27 | 9.27 |
| 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 | |
| 16.00 MP + 13.00 MP | 12.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.33 inches (1/3.06") sensor | 0.34 inches (1/2.9") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 9.35 | 9.79 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3010mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Xiaomi Mi A2 has a global score of 78, which is slightly better than the Galaxy A21's global score of 76.1. The Xiaomi Mi A2 is an older phone than the Galaxy A21, but it is just a little bit thinner and lighter anyway. The Xiaomi Mi A2 features a more vivid display than Galaxy A21, because although it has a bit smaller display, it also counts with a higher pixel density and a way better resolution of 1080 x 2160.
Xiaomi Mi A2 features a little bit better storage to install games and applications than Samsung Galaxy A21, because although it has no SD memory slot, it also counts with 128 GB internal memory capacity. The Xiaomi Mi A2 and Galaxy A21 have similar processing units, and although the Xiaomi Mi A2 has 3 GB more RAM, they both have a Octa-Core CPU.
Xiaomi Mi A2 counts with a bit better camera than Samsung Galaxy A21, because although it has a way less mega pixels resolution camera, and they both have a F1.8 diafragm aperture, the Xiaomi Mi A2 also counts with a bigger back camera sensor shooting higher quality videos and photos and a way higher 3840x2160 video quality.
The Galaxy A21 has improved battery lifetime than Xiaomi Mi A2, because it has a 33 percent bigger battery capacity.
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