Compare phones
| Global Score | |
| 74.7 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10, 9.0 Pie | Android 10 |
| 2019-04-10 | 2020-09-11 |
| 6.24 x 2.94 x 0.31 inches | 6.45 x 3.00 x 0.37 inches |
| 5.96 ounces | 7.51 ounces |
| Black,Deep blue and Red | Black and White |
| Plastic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 166.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.7 inches |
| 1560 x 720 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED Plus |
| 268 pixels per inch | 385 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8 |
| Performance | |
| Samsung Exynos 7884 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G71 MP2 GPU | Adreno 618 GPU |
| 8.91 | 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 | |
| 13.00 MP + 8.00 MP | 64.00 MP + 32.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.32 inches (1/3.1") 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 |
| 9.02 | 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 Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 8.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | 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 |
Comparison review
The Galaxy M51 has a global score of 87.7, which is better than Galaxy A20's 74.7 general score. Both of these phones include Android OS (operating system), but the Galaxy M51 has an older 10 version while Galaxy A20 has Android 11 version. Although Galaxy M51 is newer than the Galaxy A20, it's thicker and notably heavier.
Samsung Galaxy M51 features a little bit better processing power than Galaxy A20, and although they both have the same number of cores, the Samsung Galaxy M51 also has 3 GB more RAM memory. Samsung Galaxy M51 features a much better looking screen than Samsung Galaxy A20, because it has a higher amount of pixels per inch of display, a way better 1080 x 2340 resolution and a little bit bigger screen.
The Galaxy M51 shoots a lot better videos and photos than Galaxy A20, because it has a way higher 3840x2160 (4K) video quality, a lot larger camera sensor, a much higher 64 megapixels resolution camera and a larger camera aperture to capture better photography and videos in poorly lited situations.
Galaxy M51 has a lot bigger storage for apps and games than Samsung Galaxy A20, and although they both have a slot for an external memory card that allows a maximum of 512 GB, the Galaxy M51 also has 128 GB internal memory capacity. Samsung Galaxy M51 features a way better battery lifetime than Galaxy A20, because it has a 75 percent larger battery size.
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