Compare phones
| Global Score | |
| 77.7 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 10 |
| 2020-06-19 | 2020-09-11 |
| 6.44 x 2.96 x 0.35 inches | 6.45 x 3.00 x 0.37 inches |
| 6.77 ounces | 7.51 ounces |
| Black, Blue, Red and White | Black and White |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| TFT | Super AMOLED Plus |
| 270 pixels per inch | 385 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G76 GPU | Adreno 618 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.84 | 14.14 |
| Camera | |
| 48.00 MP + 13.00 MP | 64.00 MP + 32.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.57 inches (1/1.76") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 10.78 | 11.88 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 8.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy M51 has a general score of 87.7, which is much better than the Galaxy A21s's overall score of 77.7. The Samsung Galaxy M51 is a just a bit heavier and just a little thicker cellphone than the Galaxy A21s. Both devices in this comparison come with the same Android 10 OS. The Samsung Galaxy M51 features a brighter screen than Galaxy A21s, because it has a lot better 1080 x 2340 pixels resolution, a little bigger screen and more pixels per inch in the screen.
Galaxy M51 counts with a much better memory capacity for applications, games, photos and videos than Galaxy A21s, and although they both have an external memory slot that supports up to 512 GB, the Galaxy M51 also has 128 GB internal storage capacity. The Galaxy M51 has a bit faster processor than Galaxy A21s, and although they both have the same number of cores, the Galaxy M51 also has 3 GB more RAM memory.
Galaxy M51 features a much longer battery life than Samsung Galaxy A21s, because it has a 40 percent greater battery size. The Samsung Galaxy M51 counts with a superior camera than Galaxy A21s, because it has a way better video definition, a back-facing camera with way more mega-pixels, a bigger back camera sensor taking higher quality photographs and videos and a larger diafragm aperture to take better low light photography and videos.
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