| Global Score | |
| 87.7 | 85.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 5.0 |
| 2020-09-11 | 2015-04-10 |
| 6.45 x 3.00 x 0.37 inches | 5.59 x 2.76 x 0.28 inches |
| 7.51 ounces | 4.66 ounces |
| Black and White | Black, Gold, Green and White |
| Plastic and Plastic | Aluminium and Glass |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 950.00 |
| Display / Screen | |
| 6.7 inches | 5.1 inches |
| 2340 x 1080 pixels | 1440 x 2560 pixels (Quad HD / 2K) |
| Super AMOLED Plus | Super AMOLED |
| 385 pixels per inch | 576 pixels per inch |
| No touch screen | Capacitive, Multi-touch |
| 8 | 9.9 |
| Performance | |
| Qualcomm Snapdragon 730 SM7150-AA chipset | Exynos 7 Octa 7420 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor |
| 6 GB RAM | 3 GB (1600 MHz) RAM |
| Adreno 618 GPU | Mali-T760 MP8 (650 MHz) GPU |
| 9.27 | 10.08 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 10.1 |
| Camera | |
| 64.00 MP + 32.00 MP | 16.00 MP + 5.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 26.00mm focal length | 28.00mm focal length |
| 0.57 inches (1/1.76") sensor | 0.38 inches (1/2.6") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (4K) video resolution |
| 11.88 | 8.47 |
| 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, HSUPA, UMTS, EDGE, GPRS and GSM |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 7000mAh Battery | 2600mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 8.32 | 4.56 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.1 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Samsung Galaxy M51 has a score of 87.7, which is a little bit better than Galaxy S6 Edge's 85.7 global score. Samsung Galaxy M51's body is extremely newer, but much thicker and incredibly heavier than the Galaxy S6 Edge. These devices come with Android OS, but Samsung Galaxy M51 has 10 version and Galaxy S6 Edge has Android 5.0, so it counts with a lot of extra features.
Galaxy S6 Edge features a little bit better processing power than Samsung Galaxy M51, because although it has a lower amount of RAM, and they both have 8 CPU cores, the Galaxy S6 Edge also counts with an additional graphics co-processor and a 64-bits processor. The Galaxy S6 Edge features a way better looking display than Samsung Galaxy M51, because although it has a lot smaller display, it also counts with a better 2560 x 1440 resolution and a better screen density.
The Galaxy M51 has a lot bigger storage capacity to install applications and games than Galaxy S6 Edge, and although they both have the same 128 GB internal storage capacity, the Galaxy M51 also has a SD card slot that allows a maximum of 512 GB. Galaxy M51 features a much better battery lifetime than Galaxy S6 Edge, because it has a 169 percent greater battery size.
The Galaxy M51 features a way better camera than Galaxy S6 Edge, and although they both have the same video frame rate and the same (4K) video quality, the Galaxy M51 also has a back facing camera with much more megapixels, a much bigger back-facing camera sensor providing a lot higher image quality and a bigger aperture to take better captures and videos in low light environments.
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