Compare phones
| Global Score | |
| 78.9 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 10, 9.0 Pie, 8.1 Oreo | Android 10 |
| 2019-02-05 | 2020-09-11 |
| 6.16 x 2.93 x 0.35 inches | 6.45 x 3.00 x 0.37 inches |
| 6.56 ounces | 7.51 ounces |
| Charcoal black and Ocean blue | Black and White |
| Plastic and Plastic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.3 inches | 6.7 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED Plus |
| 409 pixels per inch | 385 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8 |
| Performance | |
| Samsung Exynos 7 Octa 7904 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 |
| 4 GB RAM | 6 GB RAM |
| Mali-G71 MP2 GPU | Adreno 618 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 | 64.00 MP + 32.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 12.00mm 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, 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, Compass, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy M51 is better than Galaxy M20, with a overall score of 87.7 against 78.9. These phones have the same Android 10 OS (operating system). Samsung Galaxy M51's design is newer, but heavier and a bit thicker than Galaxy M20. Galaxy M51 counts with a screen that is just as good as the display in Galaxy M20, because although the Galaxy M51 has a bit worse pixels number per inch of screen, and they both have the same 1080 x 2340 pixels resolution, it also counts with a little bigger display.
Galaxy M51 features a little bit better processing power than Galaxy M20, and although they both have 8 cpu cores, the Galaxy M51 also has more RAM. The Galaxy M51 has a much better camera than Galaxy M20, because it has a larger aperture for better low light images, a back facing camera with a much better 64 mega-pixels resolution, a lot bigger back-facing camera sensor which offers a much higher image and video quality and a way higher 3840x2160 (4K) video quality.
The Galaxy M51 has a much bigger memory capacity to store more apps and games than Samsung Galaxy M20, and although they both have a SD memory card expansion slot that holds up to 512 GB, the Galaxy M51 also has more internal memory. Galaxy M51 counts with a very superior battery performance than Galaxy M20, because it has a 40% greater battery size.
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