Compare phones
| Global Score | |
| 78 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 10 |
| 2018-07-27 | 2020-06-29 |
| 6.25 x 2.97 x 0.29 inches | 6.61 x 3.02 x 0.32 inches |
| 5.93 ounces | 6.81 ounces |
| Black, Blue, Gold, Pink and Red | Black |
| Aluminum | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 6 inches | 6.5 inches |
| 2160 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 402 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Mediatek Helio P35 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 512 GPU | PowerVR GE8320 GPU |
| 9.27 | 9.27 |
| 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 | |
| 12.00 MP + 20.00 MP | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.34 inches (1/2.9") sensor | 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 | -- |
| 9.79 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3010mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 5.92 |
| 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
Xiaomi Mi A2 has an overall score of 78, which is slightly better than the Galaxy A21's score of 76.1. Xiaomi Mi A2's construction is just a bit thinner and lighter than Galaxy A21, despite of the fact that it was released a little bit over a year before. The Galaxy A21 and Xiaomi Mi A2 have very similar CPUs, and although the Galaxy A21 has 3 GB less RAM, they both have 8 cpu cores.
Xiaomi Mi A2 features a more vivid screen than Galaxy A21, because although it has a bit smaller display, it also counts with a higher pixels density and a lot better 1080 x 2160px resolution. Xiaomi Mi A2 has a slightly better camera than Samsung Galaxy A21, because although it has a back facing camera with a lot worse resolution, and they both have a F1.8 aperture, the Xiaomi Mi A2 also counts with a larger back-facing camera sensor taking higher quality videos and photos and a lot better video quality.
The Xiaomi Mi A2 has a bit bigger storage for games and applications than Galaxy A21, because although it has no slot for external memory cards, it also counts with 128 GB internal memory. The Galaxy A21 features greater battery life than Xiaomi Mi A2, because it has a 33 percent larger battery capacity.
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