Compare phones
| Global Score | |
| 76.1 | 83.4 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 11 |
| 2020-06-29 | 2021-03-20 |
| 6.61 x 3.02 x 0.32 inches | 6.51 x 3.02 x 0.37 inches |
| 6.81 ounces | 7.58 ounces |
| Black | Frost blue, Metal bronze and Phantom black |
| Plastic and Plastic | -- |
| -- | Scratch-Resistant Glass |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 1600 x 720 pixels | 2400 x 1080 pixels |
| IPS LCD | IPS LCD |
| 270 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8.1 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 860 SM8150-AC chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| PowerVR GE8320 GPU | Adreno 640 GPU |
| 9.27 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 1 TB) external memory slot |
| 9.84 | 15.42 |
| Camera | |
| 16.00 MP + 13.00 MP | 48.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (60 fps) (Full HD) slow motion video |
| 9.35 | 10.78 |
| 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+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 5160mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.88 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | 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 | -- |
Comparison review
Xiaomi Poco X3 Pro is just a bit better than the Galaxy A21, having an 83.4 score against 76.1. Despite being the best device in this comparison review, Xiaomi Poco X3 Pro's body is somewhat thicker and somewhat heavier than the Galaxy A21. Both phones we compare here have Android OS (operating system), but Xiaomi Poco X3 Pro has a more recent 11 version while Galaxy A21 has Android 10 version.
Xiaomi Poco X3 Pro counts with a much better looking display than Galaxy A21, because it has a better count of pixels per inch of screen, a bit bigger screen and a lot higher 1080 x 2400 pixels resolution. Xiaomi Poco X3 Pro counts with a very superior storage capacity to store more games and applications than Galaxy A21, because it has a slot for an SD memory card that holds a maximum of 1 TB and more internal memory.
Xiaomi Poco X3 Pro features a bit faster processor than Galaxy A21, and although they both have 8 CPU cores, the Xiaomi Poco X3 Pro also has 3 GB more RAM. Xiaomi Poco X3 Pro captures much clearer photos and videos than Galaxy A21, and although they both have a F1.8 aperture, the Xiaomi Poco X3 Pro also has a much better video definition, a lot bigger back camera sensor taking lot better quality photographs and videos and a much more MP back facing camera.
Xiaomi Poco X3 Pro features superior battery duration than Samsung Galaxy A21, because it has a 5160mAh battery capacity instead of 4000mAh.
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