Compare phones
| Global Score | |
| 83.4 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 11, 10 |
| 2021-03-20 | 2020-03-23 |
| 6.51 x 3.02 x 0.37 inches | 6.26 x 2.96 x 0.35 inches |
| 7.58 ounces | 6.63 ounces |
| Frost blue, Metal bronze and Phantom black | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.7 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 393 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 860 SM8150-AC chipset | Exynos 9611 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 640 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 15.42 | 11.74 |
| Camera | |
| 48.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 10.78 | 11.55 |
| 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, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 5160mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.88 | 7.52 |
| 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, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy M21 is slightly better than the Xiaomi Poco X3 Pro, having a score of 84.1 against 83.4. Both of these phones use the same Android 11 OS. The Galaxy M21 construction is a bit thinner and somewhat lighter than Xiaomi Poco X3 Pro, despite of the fact that it was released around a year before.
The Galaxy M21 features a slightly better screen than Xiaomi Poco X3 Pro, because although it has a little worse 1080 x 2340 pixels resolution and a little bit smaller screen, it also counts with a bit higher pixels count in each screen inch. The Xiaomi Poco X3 Pro counts with a little bit better processing power than Galaxy M21, and although they both have 8 cores, the Xiaomi Poco X3 Pro also has 2 GB more RAM memory.
Samsung Galaxy M21 has a bit better camera than Xiaomi Poco X3 Pro, although it has a tinier aperture which is not favorable for low-light photos and video, they both have the same 30 fps video frame rate, a 48 megapixels camera, the same 3840x2160 (4K) video resolution and the same back camera sensor size.
The Xiaomi Poco X3 Pro features a very superior memory capacity for games and applications than Samsung Galaxy M21, because it has a slot for external memory cards that admits up to 1 TB and 128 GB internal storage. The Samsung Galaxy M21 features just a bit longer battery lifetime than Xiaomi Poco X3 Pro, because it has a 6000mAh battery capacity.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.