Compare phones
| Global Score | |
| 74.1 | 91.8 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 7.0 Nougat, 6.0 Marshmallow | Android 11 |
| 2017-01-23 | 2021-01-29 |
| 5.94 x 2.99 x 0.33 inches | 5.97 x 2.80 x 0.31 inches |
| 5.82 ounces | 6.03 ounces |
| 16 777 216 | Gray, Phantom pink, Violet and White |
| Aluminum | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| $ 190.00 | $ 722.00 |
| Display / Screen | |
| 5.5 inches | 6.2 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| IPS LCD | Dynamic AMOLED |
| 401 pixels per inch | 424 pixels per inch |
| 450 cd/m2 brightness | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Qualcomm Snapdragon 888 chipset |
| ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Adreno 506 GPU | Adreno 660 GPU |
| 9.09 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | No SD card slot |
| 10.02 | 10.1 |
| Camera | |
| 13.00 MP + 5.00 MP | 12.00 MP + 10.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| -- | 0.57 inches (1/1.76") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.02 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G) and HSPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM |
| 6.1 | 10.7 |
| Battery Life | |
| 4100mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6 | 5.92 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy S21 is way better than Xiaomi Redmi Note 4, with a score of 91.8 against 74.1. These devices have Android operating system, but the Galaxy S21 has 11 version while Xiaomi Redmi Note 4 has Android 7.0 Nougat. The Galaxy S21 design is extremely newer and a bit thinner, but just a little bit heavier than Xiaomi Redmi Note 4.
The Samsung Galaxy S21 counts with a bit better display than Xiaomi Redmi Note 4, because it has way more brightness, a little bit bigger screen, a little greater pixels density and a bit higher resolution of 1080 x 2400 pixels. Galaxy S21 has just a bit bigger memory capacity to install applications and games than Xiaomi Redmi Note 4, because although it has no SD memory slot, it also counts with 128 GB internal memory.
The Galaxy S21 has a little bit better hardware performance than Xiaomi Redmi Note 4, and although they both have 8 cpu cores, the Galaxy S21 also has more RAM memory. Galaxy S21 takes much clearer pictures and videos than Xiaomi Redmi Note 4, because although it has a less megapixels back-facing camera, it also counts with a bigger camera aperture for better captures in poorly lited situations and a way better video definition.
Xiaomi Redmi Note 4 has a little better battery performance than Samsung Galaxy S21, because it has 4100mAh of battery capacity.
Although Samsung Galaxy S21 is a better device, it costs a lot more money than the Xiaomi Redmi Note 4, and it doesn't have such a good relation between it's price and quality as the Xiaomi Redmi Note 4. So if you want that extra features, you can buy Samsung Galaxy S21, otherwise you can save some money and get the Xiaomi Redmi Note 4, giving up a couple features and specifications.
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