| Global Score | |
| 85.7 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 5.0 | Android 11, 10 |
| 2015-04-10 | 2019-12-27 |
| 5.59 x 2.76 x 0.28 inches | 6.24 x 2.90 x 0.31 inches |
| 4.66 ounces | 6.07 ounces |
| Black, Gold, Green and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Aluminium and Glass | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 950.00 | $ 282.00 |
| Display / Screen | |
| 5.1 inches | 6.5 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 576 pixels per inch | 405 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.9 | 8.1 |
| Performance | |
| Exynos 7 Octa 7420 chipset | Samsung Exynos 9611 chipset |
| 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB (1600 MHz) RAM | 4 GB RAM |
| Mali-T760 MP8 (650 MHz) GPU | Mali-G72 MP3 GPU |
| 10.08 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 16.00 MP + 5.00 MP | 48.00 MP + 32.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 28.00mm focal length | 26.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 8.47 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 2600mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.56 | 5.92 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
The Samsung Galaxy S6 Edge is just a bit better than the Galaxy A51, with an 85.7 score against 85.5. These devices have Android OS, but the Samsung Galaxy S6 Edge has older 5.0 version and Galaxy A51 has Android 11 version. Despite of the fact that the Samsung Galaxy S6 Edge is extremely older than the Galaxy A51, it's body is lighter and just a bit thinner.
The Samsung Galaxy S6 Edge has a much sharper display than Samsung Galaxy A51, because although it has a way smaller display, it also counts with a higher resolution of 2560 x 1440 and a higher count of pixels per display inch. Samsung Galaxy A51 has a superior memory for applications and games than Samsung Galaxy S6 Edge, and although they both have exactly the same 128 GB internal memory, the Samsung Galaxy A51 also has a SD extension slot that allows up to 512 GB.
Samsung Galaxy S6 Edge has just a bit better processing power than Samsung Galaxy A51, because although it has 1 GB less RAM memory, and they both have the same number of cores, the Samsung Galaxy S6 Edge also counts with an additional GPU and a 64-bit CPU. The Galaxy A51 has a way better battery duration than Galaxy S6 Edge, because it has a 4000mAh battery size against 2600mAh.
The Galaxy A51 has a very superior camera than Galaxy S6 Edge, because although it has a smaller aperture which is worse for low-light images, and they both have the same (4K) video definition and the same video frame rates, the Galaxy A51 also counts with a lot more megapixels back facing camera and a way larger camera sensor.
Although Galaxy S6 Edge is a better device, it is way more expensive than Samsung Galaxy A51, and it doesn't have such a good price and quality relation as Samsung Galaxy A51. So if you want that extra specs and features, you can buy Galaxy S6 Edge, otherwise you can save some dollars and buy the Samsung Galaxy A51, letting go a couple features and specifications.
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