Compare phones
| Global Score | |
| 81.6 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 11, 10 |
| 2020-09-08 | 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 |
| Cobalt blue and Shadow gray | Midnight blue and Raven black |
| Plastic | 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 |
| 450 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 732G SM7150-AC chipset | Exynos 9611 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2300 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 618 GPU | Mali-G72 MP3 GPU |
| 9.36 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.78 | 11.74 |
| Camera | |
| 64.00 MP + 20.00 MP | 48.00 MP + 20.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.1 | 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 Li - Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.88 | 7.52 |
| Other Features | |
| Bluetooth 5.1 | 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 | FM Radio |
Comparison review
Galaxy M21 is a bit better than Xiaomi Poco X3 NFC, with a global score of 84.1 against 81.6. Galaxy M21 is a a little thinner and lighter device than the Xiaomi Poco X3 NFC, even when both were released with only a couple of months difference. Both of these phones work with Android operating system, but the Galaxy M21 has newer 11 version while Xiaomi Poco X3 NFC has Android 10 version, so it provides a couple nice extra features and improved performance.
The Xiaomi Poco X3 NFC and the Samsung Galaxy M21 feature very similar displays, because although the Samsung Galaxy M21 has a bit opaque screen, a little bit smaller screen and a little worse 1080 x 2340 resolution, it also counts with a little better screen density. Galaxy M21 has a slightly bigger storage capacity for apps and games than Xiaomi Poco X3 NFC, and although they both have the same 64 GB internal storage, the Galaxy M21 also has a SD memory card expansion slot that supports a maximum of 512 GB.
Xiaomi Poco X3 NFC has a bit better performance than Galaxy M21, and although they both have the same number of cores, the Xiaomi Poco X3 NFC also has 2 GB more RAM memory. Xiaomi Poco X3 NFC captures clearer photos and videos than Galaxy M21, and although they both have the same video quality and the same 30 frames per second video frame rate, the Xiaomi Poco X3 NFC also has a larger sensor taking more light and vivid colors, a much more mega pixels back camera and a bigger aperture to take better photography in low-light situations.
The Galaxy M21 counts with a little longer battery life than Xiaomi Poco X3 NFC, because it has a 16 percent more battery capacity.
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