Compare phones
| Global Score | |
| 80.6 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 14 | Android 10 |
| 2024-10-29 | 2020-06-19 |
| 6.00 x 2.80 x 0.32 inches | 6.44 x 2.96 x 0.35 inches |
| 6.67 ounces | 6.77 ounces |
| -- | Black, Blue, Red and White |
| Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2670 x 1200 pixels | 1600 x 720 pixels |
| OLED | TFT |
| 457 pixels per inch | 270 pixels per inch |
| 3200 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 10.2 | 7.2 |
| Performance | |
| Snapdragon 8 Elite SM8750-AB (3 nm) chipset | Samsung Exynos 850 chipset |
| processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 12 GB RAM | 3 GB RAM |
| Adreno 830 GPU | Mali-G76 GPU |
| 6.21 | 9.09 |
| Storage | |
| 256 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 9.84 |
| Camera | |
| 50.00 MP + 32.00 MP | 48.00 MP + 13.00 MP |
| f/1.60 aperture | f/2.00 aperture |
| 23.00mm focal length | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 7680 x 4320 (30 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | -- |
| 12.1 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 5400mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 7.12 | 6.8 |
| Other Features | |
| Bluetooth 5.4 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass and Gyroscope | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
The Xiaomi 15 is slightly better than the Galaxy A21s, having a overall score of 80.6 against 77.7. These phones work with Android OS (operating system), but Xiaomi 15 has newer 14 version while Galaxy A21s has Android 10. Xiaomi 15's construction is notably newer, just a bit thinner and a little bit lighter than the Galaxy A21s.
Samsung Galaxy A21s features a really superior performance than Xiaomi 15, although it has a smaller amount of RAM memory, they both have the same number of cores. Xiaomi 15 features a much more vibrant display than Galaxy A21s, because although it has a quite smaller display, it also counts with a way higher resolution of 1200 x 2670 and a lot higher pixel count per inch in the screen.
Xiaomi 15 has a very superior storage to install applications and games than Galaxy A21s, because although it has no slot for SD memory cards, it also counts with 224 GB more internal memory capacity. Xiaomi 15 features just a bit longer battery life than Galaxy A21s, because it has a 5400mAh battery size.
Xiaomi 15 captures much better videos and photos than Galaxy A21s, because it has a more MP back camera, a lot higher video quality and a bigger camera aperture for better photos and videos in poorly lited situations.
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