Compare phones
| Global Score | |
| 76.1 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 10 |
| 2020-06-29 | 2020-09-11 |
| 6.61 x 3.02 x 0.32 inches | 6.45 x 3.00 x 0.37 inches |
| 6.81 ounces | 7.51 ounces |
| Black | Black and White |
| Plastic and Plastic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED Plus |
| 270 pixels per inch | 385 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| PowerVR GE8320 GPU | Adreno 618 GPU |
| 9.27 | 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 | |
| 16.00 MP + 13.00 MP | 64.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.33 inches (1/3.06") 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 |
| 9.35 | 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 | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 8.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| 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 | FM Radio |
Comparison review
Samsung Galaxy M51 is much better than Galaxy A21, having a global score of 87.7 against 76.1. Samsung Galaxy M51 is a better phone than the Galaxy A21, we must tell that it is also a thicker and a little heavier phone. Both phones we are comparing here come with the same Android 10 OS. Galaxy M51's processor is just as good as the processor in Galaxy A21, and although the Galaxy M51 has more RAM, they both have the same number of cores.
The Samsung Galaxy M51 features a bit better screen than Galaxy A21, because it has a much higher resolution of 1080 x 2340px, a quite larger screen and a greater pixels density. Galaxy M51 counts with a lot bigger storage for games and applications than Galaxy A21, and although they both have an external memory card slot that admits up to 512 GB, the Galaxy M51 also has 96 GB more internal memory.
Galaxy M51 features a very superior battery duration than Galaxy A21, because it has a 7000mAh battery capacity. The Samsung Galaxy M51 captures greater photos and videos than Galaxy A21, and although they both have the same camera aperture, the Samsung Galaxy M51 also has a lot better (4K) video definition, a much more mega pixels back camera and a lot bigger camera sensor providing a lot better image quality.
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