Compare phones
| Global Score | |
| 81 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 12 | Android 11, 10 |
| -- | 2020-03-23 |
| -- | 6.26 x 2.96 x 0.35 inches |
| -- | 6.63 ounces |
| Black and White | Midnight blue and Raven black |
| Aluminum and Ceramic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.7 inches | 6.4 inches |
| 3200 x 1440 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 524 pixels per inch | 403 pixels per inch |
| 1500 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.7 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset | Exynos 9611 chipset |
| processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 730 GPU | Mali-G72 MP3 GPU |
| 6.21 | 9.27 |
| Storage | |
| 256 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 11.74 |
| Camera | |
| 50.00 MP + 20.00 MP | 48.00 MP + 20.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (1920 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.32 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 4800mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.64 | 7.52 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy M21 has a general score of 84.1, which is slightly better than the Xiaomi 12S Ultra's general score of 81. These phones work with Android operating system, but Galaxy M21 has 11 version while Xiaomi 12S Ultra has Android 12 version. The Samsung Galaxy M21 counts with a much better performance than Xiaomi 12S Ultra, although it has a lower amount of RAM, they both have 8 CPU cores.
Xiaomi 12S Ultra has a sharper screen than Samsung Galaxy M21, because it has a bit larger screen, a higher 1440 x 3200 resolution, a better screen density and a way brighter display. Xiaomi 12S Ultra counts with a better storage to store more apps and games than Galaxy M21, because although it has no SD memory slot, it also counts with 192 GB more internal memory capacity.
The Xiaomi 12S Ultra shoots a bit better photographs and videos than Galaxy M21, and although they both have a same size sensor and a same size aperture, the Xiaomi 12S Ultra also has a camera in the back with more mega pixels and a way better 7680x4320 video quality. The Galaxy M21 has greater battery life than Xiaomi 12S Ultra, because it has a 6000mAh battery capacity.
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