Compare phones
| Global Score | |
| 76 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 6.0 Marshmallow | Android 11, 10 |
| 2016-11-01 | 2020-03-23 |
| 6.15 x 3.04 x 0.30 inches | 6.26 x 2.96 x 0.35 inches |
| 5.86 ounces | 6.63 ounces |
| Black and Silver | Midnight blue and Raven black |
| Aluminum and Glass | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 516.00 | -- |
| Display / Screen | |
| 5.7 inches | 6.4 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| OLED | Super AMOLED |
| 386 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.9 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 821 MSM8996 Pro chipset | Exynos 9611 chipset |
| Kryo, 64-bit (Quad-Core 2350 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 530 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 23.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 8.69 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | 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, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4070mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy M21 is much better than Xiaomi Mi Note 2, having a overall score of 84.1 against 76. Galaxy M21's construction is extremely newer than Xiaomi Mi Note 2's, although it is somewhat heavier and somewhat thicker. Both of these phones work with Android OS (operating system), but the Galaxy M21 has 11 version while Xiaomi Mi Note 2 has Android 6.0 Marshmallow version.
The Samsung Galaxy M21 has a little sharper display than Xiaomi Mi Note 2, because it has a just a bit better screen density, a little bit bigger display and a slightly better 1080 x 2340 resolution. The Samsung Galaxy M21 features a quite bigger storage capacity for apps and games than Xiaomi Mi Note 2, because although it has only 64 GB internal storage capacity, it also counts with a slot for an SD memory card that holds a maximum of 512 GB.
The Galaxy M21 has a bit superior processing unit than Xiaomi Mi Note 2, because although it has 2 GB less RAM, it also counts with a larger number of cores. The Samsung Galaxy M21 shoots greater pictures and videos than Xiaomi Mi Note 2, and although they both have the same video frame rate, the same 3840x2160 (4K) video definition and the same camera aperture, the Samsung Galaxy M21 also has a lot larger camera sensor shooting lot better quality photos and videos and a lot more MP back facing camera.
Galaxy M21 has a much longer battery performance than Xiaomi Mi Note 2, because it has a 6000mAh battery size.
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