Compare phones
| Global Score | |
| 90.8 | 78.9 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10, 9.0 Pie, 8.1 Oreo |
| 2020-04-29 | 2019-02-05 |
| 6.26 x 2.90 x 0.34 inches | 6.16 x 2.93 x 0.35 inches |
| 6.60 ounces | 6.56 ounces |
| Prism cube black | Charcoal black and Ocean blue |
| Aluminum and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 339.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.3 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 405 pixels per inch | 409 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8 |
| Performance | |
| Samsung Exynos 980 chipset | Samsung Exynos 7 Octa 7904 chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Mali-G76 MP5 GPU | Mali-G71 MP2 GPU |
| 9.27 | 8.91 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 15.38 | 11.74 |
| Camera | |
| 48.00 MP + 32.00 MP | 13.00 MP + 8.00 MP |
| f/2.00 aperture | f/1.90 aperture |
| 26.00mm focal length | 12.00mm focal length |
| 0.5 inches (1/2") sensor | 0.32 inches (1/3.1") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | -- |
| 11.55 | 9.02 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, 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 |
| 10.7 | 6.7 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 6.8 |
| 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 and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy A51 5G is much better than Galaxy M20, with a 90.8 score against 78.9. Galaxy A51 5G is a newer and just a little thinner device than the Galaxy M20, but it's a little bit heavier. These phones have Android OS (operating system), but the Galaxy A51 5G has a newer 11 version while Galaxy M20 has Android 10.
Galaxy A51 5G has a little more vivid screen than Galaxy M20, because although it has a little lower number of pixels per display inch, it also counts with a slightly better resolution of 1080 x 2400px and a bit bigger screen. The Galaxy A51 5G counts with much more storage capacity for apps and games than Samsung Galaxy M20, because it has 64 GB more internal memory and a SD card slot that holds a maximum of 1000 GB.
Samsung Galaxy A51 5G features a little bit better processing power than Galaxy M20, and although they both have the same number of cores, the Samsung Galaxy A51 5G also has more RAM. Samsung Galaxy A51 5G counts with a greater camera than Samsung Galaxy M20, because although it has a tinier aperture which is not favorable for taking photos or videos in low-light environments, it also counts with a much bigger back camera sensor providing a way higher image quality, a way better video definition and a camera in the back with a way better resolution.
The Samsung Galaxy M20 features a little longer battery performance than Samsung Galaxy A51 5G, because it has a 5000mAh battery size.
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