Compare phones
| Global Score | |
| 77.7 | 80.1 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 15 |
| 2020-06-19 | -- |
| 6.44 x 2.96 x 0.35 inches | -- |
| 6.77 ounces | -- |
| Black, Blue, Red and White | -- |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 1600 x 720 pixels | -- |
| TFT | AMOLED |
| 270 pixels per inch | -- |
| -- | 3000 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 5 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm) chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | processor |
| 3 GB RAM | 16 GB RAM |
| Mali-G76 GPU | Adreno 830 GPU |
| 9.09 | 6.3 |
| Storage | |
| 32 GB internal memory | 512 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 17.6 |
| Camera | |
| 48.00 MP + 13.00 MP | 200.00 MP + 32.00 MP |
| f/2.00 aperture | -- |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (30 fps) video resolution |
| -- | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 10.78 | 12.87 |
| Networks | |
| Wi-Fi | -- |
| 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 | 7.6 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 6000mAh Si - Carbon Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.4 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Xiaomi 15 Ultra (Rumored) is just a bit better than Galaxy A21s, with an 80.1 score against 77.7. Both of these phones come with Android OS, but Xiaomi 15 Ultra (Rumored) has a more recent 15 version and Galaxy A21s has Android 10 version. The Xiaomi 15 Ultra (Rumored) design is a lot lighter and notably thinner than Galaxy A21s.
Galaxy A21s features a much faster processing unit than Xiaomi 15 Ultra (Rumored), although it has 13 GB less RAM memory, they both have 8 cpu cores. The Galaxy A21s counts with a much more vibrant screen than Xiaomi 15 Ultra (Rumored), although it has a little bit smaller display. Xiaomi 15 Ultra (Rumored) shoots much better photographs and videos than Galaxy A21s, because it has a much higher video definition and a back camera with lot more mega pixels.
Xiaomi 15 Ultra (Rumored) has a much better storage capacity for apps and games than Samsung Galaxy A21s, because although it has no SD card slot, it also counts with more internal memory capacity. Xiaomi 15 Ultra (Rumored) features greater battery performance than Samsung Galaxy A21s, because it has a 6000mAh battery size.
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