Compare phones
| Global Score | |
| 84.1 | 83.4 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 11 |
| 2020-03-23 | 2021-03-20 |
| 6.26 x 2.96 x 0.35 inches | 6.51 x 3.02 x 0.37 inches |
| 6.63 ounces | 7.58 ounces |
| Midnight blue and Raven black | Frost blue, Metal bronze and Phantom black |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.7 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 393 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 860 SM8150-AC chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 640 GPU |
| 9.27 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 1 TB) external memory slot |
| 11.74 | 15.42 |
| Camera | |
| 48.00 MP + 20.00 MP | 48.00 MP |
| f/2.00 aperture | f/1.80 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 (240 fps) (Full HD) slow motion video | 1920 x 1080 (60 fps) (Full HD) slow motion video |
| 11.55 | 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, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 5160mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.88 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy M21 has a global score of 84.1, which is slightly better than the Xiaomi Poco X3 Pro's general score of 83.4. These phones come with the same Android 11 OS (operating system). The Galaxy M21 construction is somewhat lighter and a little thinner than Xiaomi Poco X3 Pro, despite of the fact that it was released just a bit further than a year before.
The Xiaomi Poco X3 Pro features a bit better performance than Galaxy M21, and although they both have the same number of cores, the Xiaomi Poco X3 Pro also has more RAM memory. The Galaxy M21 counts with a little more vivid display than Xiaomi Poco X3 Pro, because although it has a bit lower resolution of 1080 x 2340px and a quite smaller screen, it also counts with a just a little more pixels per screen inch.
Xiaomi Poco X3 Pro has a much bigger storage for applications and games than Samsung Galaxy M21, because it has a slot for external memory cards that holds a maximum of 1 TB and more internal storage. Samsung Galaxy M21 takes a little bit better pictures and videos than Xiaomi Poco X3 Pro, although it has a tinier camera aperture which is not favorable for low-light photography and videos, they both have the same video frame rates, a camera with a 48 mega-pixels, the same back camera sensor size and the same 3840x2160 (4K) video resolution.
The Galaxy M21 counts with a bit superior battery life than Xiaomi Poco X3 Pro, because it has 6000mAh of battery capacity against 5160mAh.
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