Compare phones
| Global Score | |
| 84.1 | 77.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 8.1 Oreo |
| 2020-03-23 | 2018-11-23 |
| 6.26 x 2.96 x 0.35 inches | 6.22 x 3.01 x 0.33 inches |
| 6.63 ounces | 6.42 ounces |
| Midnight blue and Raven black | 16 777 216 |
| Plastic and Plastic | Metal and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.3 inches |
| 2340 x 1080 pixels | 2280 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 400 pixels per inch |
| 420 cd/m2 brightness | 500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 8.5 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 636 SDM636 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 509 GPU |
| 9.27 | 9 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 11.74 | 10.78 |
| Camera | |
| 48.00 MP + 20.00 MP | 12.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.90 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.39 inches (1/2.55") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 11.55 | 9.24 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy M21 has a general score of 84.1, which is just a bit better than Xiaomi Redmi Note 6 Pro's 77.2 overall score. The Galaxy M21 is a newer phone than the Xiaomi Redmi Note 6 Pro, but it's just a bit thicker and a little bit heavier. Both phones in this comparison have Android OS, but Galaxy M21 has the older 11 version and Xiaomi Redmi Note 6 Pro has Android 8.1 Oreo version.
Xiaomi Redmi Note 6 Pro counts with a little bit better display than Samsung Galaxy M21, because although it has a little lower resolution of 1080 x 2280, a bit smaller screen and a just a little lower pixels density, it also counts with a little more brightness. Samsung Galaxy M21 counts with a bit better processing unit than Xiaomi Redmi Note 6 Pro, although it has a smaller amount of RAM, they both have 8 processing cores.
Galaxy M21 has a little bit more storage to install applications and games than Xiaomi Redmi Note 6 Pro, and although they both have equal 64 GB internal memory, the Galaxy M21 also has a slot for an external memory card that supports a maximum of 512 GB. The Galaxy M21 features a much longer battery lifetime than Xiaomi Redmi Note 6 Pro, because it has a 50 percent bigger battery size.
The Samsung Galaxy M21 takes way better pictures and videos than Xiaomi Redmi Note 6 Pro, because although it has a smaller camera aperture which is not so good for capturing photos or video in low light situations, it also counts with a way higher video resolution, a back camera with a way better resolution and a much larger sensor which gives a lot better image and video quality.
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