Compare phones
| Global Score | |
| 77.7 | 81 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 12 |
| 2020-06-19 | -- |
| 6.44 x 2.96 x 0.35 inches | -- |
| 6.77 ounces | -- |
| Black, Blue, Red and White | Black and White |
| -- | Aluminum and Ceramic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 1600 x 720 pixels | 3200 x 1440 pixels |
| TFT | AMOLED |
| 270 pixels per inch | 524 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 9.7 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | processor |
| 3 GB RAM | 8 GB RAM |
| Mali-G76 GPU | Adreno 730 GPU |
| 9.09 | 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 | |
| 48.00 MP + 13.00 MP | 50.00 MP + 20.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.5 inches (1/2") 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 |
| 10.78 | 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, Dual SIM | Nano SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4800mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 6.64 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi 12S Ultra has a score of 81, which is slightly better than Samsung Galaxy A21s's global score of 77.7. Both of these phones include Android OS (operating system), but the Xiaomi 12S Ultra has a newer 12 version and Samsung Galaxy A21s has Android 10, offering lots of additional features. The Xiaomi 12S Ultra is a extremely thinner and way lighter cellphone than Samsung Galaxy A21s.
The Xiaomi 12S Ultra has a much more vibrant display than Galaxy A21s, because it has a lot better resolution of 1440 x 3200, a much higher display density and a quite larger screen. The Xiaomi 12S Ultra counts with a superior memory for applications, games, photos and videos than Galaxy A21s, because although it has no slot for an external memory card, it also counts with 256 GB internal storage.
Samsung Galaxy A21s has a way better processing power than Xiaomi 12S Ultra, although it has a smaller amount of RAM, they both have 8 processing cores. The Xiaomi 12S Ultra captures much clearer photos and videos than Galaxy A21s, and although they both have a same size diafragm aperture and a 0.5 inches back camera sensor, the Xiaomi 12S Ultra also has a camera in the back with a higher 50 mega pixels resolution and a way higher 7680x4320 video quality.
Samsung Galaxy A21s has just a bit better battery lifetime than Xiaomi 12S Ultra, because it has a 5000mAh battery size.
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