Compare phones
| Global Score | |
| 78.9 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 10, 9.0 Pie, 8.1 Oreo | Android 11, 10 |
| 2019-02-05 | 2019-12-27 |
| 6.16 x 2.93 x 0.35 inches | 6.24 x 2.90 x 0.31 inches |
| 6.56 ounces | 6.07 ounces |
| Charcoal black and Ocean blue | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Plastic and Plastic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 282.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 409 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7904 chipset | Samsung Exynos 9611 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G71 MP2 GPU | Mali-G72 MP3 GPU |
| 8.91 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 14.14 |
| Camera | |
| 13.00 MP + 8.00 MP | 48.00 MP + 32.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 12.00mm focal length | 26.00mm focal length |
| 0.32 inches (1/3.1") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.02 | 11.55 |
| 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 | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy A51 has a global score of 85.5, which is slightly better than the Galaxy M20's global score of 78.9. These devices come with Android OS (Operating System), but Samsung Galaxy A51 has a more recent 11 version and Galaxy M20 has Android 10 version, so it provides the user some additional features. The Samsung Galaxy A51 is a newer cellphone, and it's also thinner and a bit lighter than Galaxy M20.
Galaxy A51 counts with a little sharper screen than Galaxy M20, because although it has a quite worse pixel density, it also counts with a quite larger display and a quite better 1080 x 2400 resolution. The Galaxy A51 features just a little better performance than Samsung Galaxy M20. Both have the same RAM amount and 8 CPU cores.
Galaxy A51 features a much bigger memory for games and applications than Galaxy M20, and although they both have an external memory card slot that holds a maximum of 512 GB, the Galaxy A51 also has more internal memory capacity. The Galaxy M20 features longer battery duration than Samsung Galaxy A51, because it has 5000mAh of battery capacity.
The Galaxy A51 captures a lot better photographs and videos than Galaxy M20, because although it has a smaller aperture, it also counts with a way bigger sensor taking much better quality videos and pictures, a much higher (4K) video quality and a lot better 48 MP resolution camera.
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