| Global Score | |
| 87.7 | 76.3 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 4.4.4 |
| 2020-09-11 | -- |
| 6.45 x 3.00 x 0.37 inches | 5.21 x 2.58 x 0.26 inches |
| 7.51 ounces | 4.06 ounces |
| Black and White | Black, Blue, Gold, Gray and White |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 320.00 |
| Display / Screen | |
| 6.7 inches | 4.7 inches |
| 2340 x 1080 pixels | 720 x 1280 pixels (HD) |
| Super AMOLED Plus | Super AMOLED |
| 385 pixels per inch | 312 pixels per inch |
| No touch screen | Capacitive, Multi-touch |
| 8 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 730 SM7150-AA chipset | Qualcomm Snapdragon 801 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Krait 400 (Quad-Core 2500 MHz) processor |
| 6 GB RAM | 2 GB (933 MHz) RAM |
| Adreno 618 GPU | Adreno 330 (450 MHz) GPU |
| 9.27 | 9.36 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 5.8 |
| Camera | |
| 64.00 MP + 32.00 MP | 12.00 MP + 2.10 MP |
| f/1.80 aperture | f/2.20 aperture |
| 26.00mm focal length | 31.00mm focal length |
| 0.57 inches (1/1.76") 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 |
| 11.88 | 9.46 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA, EDGE, GPRS and GSM |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 7 |
| Battery Life | |
| 7000mAh Battery | 1860mAh Li-Ion Battery |
| Non-Removable Battery | Removable Battery |
| -- | 11 hours talk time |
| 8.32 | 3.76 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
The Samsung Galaxy M51 is much better than Galaxy Alpha, having an 87.7 score against 76.3. These phones have Android OS (operating system), but the Samsung Galaxy M51 has an older 10 version and Galaxy Alpha has Android 4.4.4. Although it's the best in our current comparison, the Samsung Galaxy M51 is a incredibly heavier and incredibly thicker device than the Galaxy Alpha.
Galaxy Alpha features a bit more vivid display than Samsung Galaxy M51, although it has a much smaller screen, a little bit worse amount of pixels per inch in the screen and a lot worse 1280 x 720 pixels resolution. The Samsung Galaxy Alpha has a little bit better performance than Samsung Galaxy M51, because although it has lesser cores (although they are faster) and a lower amount of RAM, it also counts with a graphics processor.
The Galaxy M51 has a way bigger memory capacity for applications and games than Galaxy Alpha, because it has more internal memory capacity and a SD memory slot that supports up to 512 GB. Samsung Galaxy M51 features a much longer battery duration than Galaxy Alpha, because it has a 276% bigger battery capacity.
The Galaxy M51 shoots much better pictures and videos than Galaxy Alpha, and although they both have the same video frame rate and the same 3840x2160 video quality, the Galaxy M51 also has a lot more mega pixels back facing camera and a bigger aperture to capture better low light photography and videos.
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