Compare phones
| Global Score | |
| 76.1 | 81 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 12 |
| 2020-06-29 | -- |
| 6.61 x 3.02 x 0.32 inches | -- |
| 6.81 ounces | -- |
| Black | Black and White |
| Plastic and Plastic | Aluminum and Ceramic |
| -- | Scratch-Resistant Glass |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 1600 x 720 pixels | 3200 x 1440 pixels |
| IPS LCD | AMOLED |
| 270 pixels per inch | 524 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.3 | 9.7 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | processor |
| 3 GB RAM | 8 GB RAM |
| PowerVR GE8320 GPU | Adreno 730 GPU |
| 9.27 | 6.21 |
| Storage | |
| 32 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 13.3 |
| Camera | |
| 16.00 MP + 13.00 MP | 50.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 24.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 9.35 | 12.32 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4800mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.64 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Xiaomi 12S Ultra has a score of 81, which is a bit better than Galaxy A21's score of 76.1. The Xiaomi 12S Ultra design is extremely thinner and a lot lighter than the Galaxy A21. Both phones in this comparison review use Android OS (Operating System), but Xiaomi 12S Ultra has a newer 12 version while Galaxy A21 has Android 10 version, so it provides some extra features and performance tweaks.
The Samsung Galaxy A21 counts with a way better performance than Xiaomi 12S Ultra, although it has less RAM, they both have 8 CPU cores. Xiaomi 12S Ultra counts with a lot better screen than Galaxy A21, because it has a way higher resolution of 1440 x 3200, a little bigger screen and a way greater display pixel density.
Xiaomi 12S Ultra counts with a way better camera than Samsung Galaxy A21, because although it has a tinier aperture which is not good for low light images and videos, it also counts with a much better video definition, a way higher resolution camera and a way bigger back-facing camera sensor providing a much better image quality.
The Xiaomi 12S Ultra features a superior memory capacity for games and applications than Galaxy A21, because although it has no external SD slot, it also counts with 256 GB internal memory. Xiaomi 12S Ultra has longer battery lifetime than Galaxy A21, because it has a 20% bigger battery size.
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