| Global Score | |
| 76.3 | 76.6 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 4.4.4 | Android 10 |
| -- | 2020-05-20 |
| 5.21 x 2.58 x 0.26 inches | 6.39 x 3.04 x 0.35 inches |
| 4.06 ounces | 7.02 ounces |
| Black, Blue, Gold, Gray and White | Forest green, Midnight gray and Polar white |
| -- | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 320.00 | $ 283.00 |
| Display / Screen | |
| 4.7 inches | 6.5 inches |
| 720 x 1280 pixels (HD) | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 312 pixels per inch | 396 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 8.4 | 8 |
| Performance | |
| Qualcomm Snapdragon 801 chipset | MediaTek Helio G85 chipset |
| Krait 400 (Quad-Core 2500 MHz) processor | Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 2 GB (933 MHz) RAM | 3 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali G52 MC2 GPU |
| 9.36 | 9.09 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 128 GB) external memory slot |
| 5.8 | 10.02 |
| Camera | |
| 12.00 MP + 2.10 MP | 48.00 MP + 13.00 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 | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 9.46 | 11 |
| 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 | 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 9 has a score of 76.6, which is a little bit better than the Galaxy Alpha's 76.3 general score. The Xiaomi Redmi Note 9 is a notably thicker and incredibly heavier phone than the Galaxy Alpha. Both of these phones use Android OS, but the Xiaomi Redmi Note 9 has the previous 10 version and Galaxy Alpha has Android 4.4.4 version.
Galaxy Alpha features a bit more powerful processing unit than Xiaomi Redmi Note 9, because although it has a lower number of cores and 1 GB lesser RAM memory, it also counts with a GPU. Galaxy Alpha features a slightly better looking display than Xiaomi Redmi Note 9, although it has a lot worse 1280 x 720px resolution, a way smaller display and a just a little less pixels per display inch.
The Xiaomi Redmi Note 9 counts with a superior camera than Galaxy Alpha, and although they both have the same (Full HD) video resolution and the same video frame rate, the Xiaomi Redmi Note 9 also has a back facing camera with a lot better 48 mega pixels resolution and a bigger aperture. Xiaomi Redmi Note 9 has much more storage capacity for games and applications than Samsung Galaxy Alpha, because it has more internal memory capacity and a SD memory slot that supports a maximum of 128 GB.
The Xiaomi Redmi Note 9 counts with a superior battery performance than Galaxy Alpha, because it has a 170 percent greater battery capacity.
Despite of being the best phone of the ones in this comparison, Xiaomi Redmi Note 9 is also cheap compared to the Samsung Galaxy Alpha.
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