| Global Score | |
| 76.3 | 91.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 4.4.4 | Android 11 |
| -- | 2021-01-29 |
| 5.21 x 2.58 x 0.26 inches | 5.97 x 2.80 x 0.31 inches |
| 4.06 ounces | 6.03 ounces |
| Black, Blue, Gold, Gray and White | Gray, Phantom pink, Violet and White |
| -- | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 320.00 | $ 722.00 |
| Display / Screen | |
| 4.7 inches | 6.2 inches |
| 720 x 1280 pixels (HD) | 2400 x 1080 pixels |
| Super AMOLED | Dynamic AMOLED |
| 312 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 8.4 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 801 chipset | Qualcomm Snapdragon 888 chipset |
| Krait 400 (Quad-Core 2500 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 2 GB (933 MHz) RAM | 8 GB RAM |
| Adreno 330 (450 MHz) GPU | Adreno 660 GPU |
| 9.36 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 5.8 | 10.1 |
| Camera | |
| 12.00 MP + 2.10 MP | 12.00 MP + 10.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| 31.00mm focal length | 26.00mm focal length |
| -- | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.46 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA, EDGE, GPRS and GSM | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 7 | 10.7 |
| Battery Life | |
| 1860mAh Li-Ion Battery | 4000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 11 hours talk time | -- |
| 3.76 | 5.92 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
The Galaxy S21 has a global score of 91.8, which is way better than the Samsung Galaxy Alpha's score of 76.3. The Galaxy S21 is a noticeably heavier and somewhat thicker cellphone than the Samsung Galaxy Alpha. Both phones in our current comparison have Android OS (operating system), but Galaxy S21 has the previous 11 version while Samsung Galaxy Alpha has Android 4.4.4 version.
Samsung Galaxy S21 counts with just a bit better display than Galaxy Alpha, because it has a better count of pixels per inch in the screen, a lot bigger screen and a way higher resolution of 1080 x 2400. Samsung Galaxy S21 features a bit better processing power than Samsung Galaxy Alpha, because although it has doesn't have an extra graphics processor, it also counts with a larger number of faster cores and a greater amount of RAM.
The Galaxy S21 counts with a superior camera than Galaxy Alpha, and although they both have a same resolution back-facing camera, the Galaxy S21 also has a way higher 7680x4320 video definition and a larger aperture. Samsung Galaxy S21 counts with much more memory capacity for apps and games than Galaxy Alpha, because it has 96 GB more internal memory.
Galaxy S21 has a much better battery life than Samsung Galaxy Alpha, because it has a 4000mAh battery size against 1860mAh.
Samsung Galaxy S21 is way more expensive than the Galaxy Alpha, but you can get a much better phone for that extra money.
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