Compare phones
| Global Score | |
| 75.2 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 4.4.3 | Android 11, 10 |
| 2014-07-22 | 2020-03-23 |
| 5.48 x 2.70 x 0.35 inches | 6.26 x 2.96 x 0.35 inches |
| 5.26 ounces | 6.63 ounces |
| Black and White | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 329.00 | -- |
| Display / Screen | |
| 5 inches | 6.4 inches |
| 1080 x 1920 pixels (Full HD) | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 441 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 801 8974-AC chipset | Exynos 9611 chipset |
| Qualcomm Krait 400 (Quad-Core 2500 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali-G72 MP3 GPU |
| 9.36 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 7.7 | 11.74 |
| Camera | |
| 13.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.79 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 3080mAh Li-Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 7.52 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| Infra-red port | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy M21 has a score of 84.1, which is much better than Xiaomi Mi 4's 75.2 overall score. The Galaxy M21 design has the same thickness than Xiaomi Mi 4, but it's way heavier. Both phones in this comparison come with Android operating system, but Galaxy M21 has the older 11 version while Xiaomi Mi 4 has Android 4.4.3.
The Xiaomi Mi 4 counts with a little bit better performance than Galaxy M21, because although it has an inferior number of cores (although they are faster) and a smaller amount of RAM, it also counts with an additional graphics processor. Xiaomi Mi 4 features a little more vivid display than Galaxy M21, because although it has a way smaller screen and a quite lower resolution of 1920 x 1080px, it also counts with a just a little more pixels per display inch.
The Galaxy M21 features a better camera than Xiaomi Mi 4, because although it has a tinier aperture which is not recommended for capturing photos in low light environments, and they both have the same 30 frames per second video frame rates and the same 3840x2160 (4K) video definition, the Galaxy M21 also counts with a back camera with a lot higher resolution and a lot bigger sensor.
Galaxy M21 features a very superior memory to install applications and games than Xiaomi Mi 4, and although they both have the same 64 GB internal storage capacity, the Galaxy M21 also has a slot for an SD memory card that admits up to 512 GB. Galaxy M21 has a very superior battery duration than Xiaomi Mi 4, because it has a 95% larger battery size.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.