| Global Score | |
| 76.3 | 79 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 4.4.4 | Android 11, 10 |
| -- | 2020-04-07 |
| 5.21 x 2.58 x 0.26 inches | 6.53 x 3.02 x 0.35 inches |
| 4.06 ounces | 7.37 ounces |
| Black, Blue, Gold, Gray and White | Aurora blue, Glacier white and Interstellar grey |
| -- | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 320.00 | $ 249.00 |
| Display / Screen | |
| 4.7 inches | 6.7 inches |
| 720 x 1280 pixels (HD) | 2400 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 312 pixels per inch | 393 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 8.4 | 8 |
| Performance | |
| Qualcomm Snapdragon 801 chipset | Qualcomm Snapdragon 720G SM7125 chipset |
| Krait 400 (Quad-Core 2500 MHz) processor | Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor |
| 2 GB (933 MHz) RAM | 4 GB RAM |
| Adreno 330 (450 MHz) GPU | Adreno 618 GPU |
| 9.36 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 5.8 | 11.74 |
| Camera | |
| 12.00 MP + 2.10 MP | 48.00 MP + 16.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| 31.00mm focal length | -- |
| -- | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.46 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 1860mAh Li-Ion Battery | 5020mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 11 hours talk time | -- |
| 3.76 | 6.8 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
The Xiaomi Redmi Note 9S has a general score of 79, which is a little bit better than the Samsung Galaxy Alpha's general score of 76.3. Both of these phones have Android OS, but Xiaomi Redmi Note 9S has the older 11 version and Samsung Galaxy Alpha has Android 4.4.4. Xiaomi Redmi Note 9S's construction is way thicker and extremely heavier than the Samsung Galaxy Alpha.
Galaxy Alpha features just a bit better screen than Xiaomi Redmi Note 9S, although it has a really smaller display, a way lower 1280 x 720px resolution and a little bit less pixels per inch of screen. Galaxy Alpha has a little better performance than Xiaomi Redmi Note 9S, because although it has lesser RAM and a lower number of cores (although faster), it also counts with an extra graphics co-processor.
Xiaomi Redmi Note 9S counts with a much bigger storage capacity for games and applications than Samsung Galaxy Alpha, because it has 64 GB internal memory and an external SD slot that supports a maximum of 512 GB. Xiaomi Redmi Note 9S counts with a much longer battery lifetime than Galaxy Alpha, because it has a 5020mAh battery capacity instead of 1860mAh.
Xiaomi Redmi Note 9S counts with a lot better camera than Samsung Galaxy Alpha, and although they both have the same video frame rate and the same (4K) video definition, the Xiaomi Redmi Note 9S also has a back-facing camera with much more mega-pixels and a bigger aperture to take better low-light captures.
The Xiaomi Redmi Note 9S not only is the best phones of the ones we are comparing here, but it's also a lot cheaper, which makes it an obvious call.
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