Compare phones
| Global Score | |
| 74.4 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 7.1 Nougat | Android 11, 10 |
| 2018-02-22 | 2020-03-23 |
| 6.24 x 2.97 x 0.32 inches | 6.26 x 2.96 x 0.35 inches |
| 6.35 ounces | 6.63 ounces |
| 16 777 216 | Midnight blue and Raven black |
| Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6 inches | 6.4 inches |
| 2160 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 402 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Exynos 9611 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2000 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 506 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.02 | 11.74 |
| Camera | |
| 12.00 MP + 5.00 MP | 48.00 MP + 20.00 MP |
| f/2.20 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 8.8 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy M21 is better than the Xiaomi Redmi Note 5, getting a score of 84.1 against 74.4. Both of these phones include Android operating system, but the Samsung Galaxy M21 has older 11 version and Xiaomi Redmi Note 5 has Android 7.1 Nougat version. Even though Samsung Galaxy M21 is newer than Xiaomi Redmi Note 5, it's just a little bit thicker and just a bit heavier.
The Galaxy M21 has a little sharper screen than Xiaomi Redmi Note 5, because it has a little bigger display, a just a little higher screen density and a bit higher resolution of 1080 x 2340 pixels. Samsung Galaxy M21 features a greater memory for applications and games than Xiaomi Redmi Note 5, and although they both have exactly the same internal memory, the Samsung Galaxy M21 also has a slot for SD memory cards that allows a maximum of 512 GB.
The Galaxy M21 counts with a little bit better hardware performance than Xiaomi Redmi Note 5. Both have a Octa-Core processing unit and the same RAM memory amount. Samsung Galaxy M21 features a much better camera than Xiaomi Redmi Note 5, because it has a bigger aperture, a back facing camera with a lot higher 48 mega pixels resolution and a much better (4K) video quality.
Galaxy M21 features a very superior battery life than Xiaomi Redmi Note 5, because it has a 50 percent greater battery capacity.
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