| Global Score | |
| 85.5 | 85.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 5.0 |
| 2019-12-27 | 2015-04-10 |
| 6.24 x 2.90 x 0.31 inches | 5.59 x 2.76 x 0.28 inches |
| 6.07 ounces | 4.66 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black, Gold, Green and White |
| Plastic and Plastic | Aluminium and Glass |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | $ 950.00 |
| Display / Screen | |
| 6.5 inches | 5.1 inches |
| 2400 x 1080 pixels | 1440 x 2560 pixels (Quad HD / 2K) |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 576 pixels per inch |
| No touch screen | Capacitive, Multi-touch |
| 8.1 | 9.9 |
| Performance | |
| Samsung Exynos 9611 chipset | Exynos 7 Octa 7420 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor |
| 4 GB RAM | 3 GB (1600 MHz) RAM |
| Mali-G72 MP3 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 | |
| 48.00 MP + 32.00 MP | 16.00 MP + 5.00 MP |
| f/2.00 aperture | f/1.90 aperture |
| 26.00mm focal length | 28.00mm focal length |
| 0.5 inches (1/2") sensor | 0.38 inches (1/2.6") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 11.55 | 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 | |
| 4000mAh Li - Polymer Battery | 2600mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 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 | -- |
Galaxy S6 Edge is a little bit better than Galaxy A51, with a overall score of 85.7 against 85.5. The Galaxy S6 Edge is an extremely older device than Galaxy A51, but Samsung managed to make it just a little thinner and a lot lighter. Both devices in this comparison have Android operating system, but Galaxy S6 Edge has older 5.0 version and Galaxy A51 has Android 11.
The Samsung Galaxy S6 Edge has a way better display than Samsung Galaxy A51, because although it has a lot smaller screen, it also counts with a higher 2560 x 1440 resolution and more pixels per inch in the screen. Galaxy A51 has a way bigger memory for games and applications than Samsung Galaxy S6 Edge, and although they both have the same internal memory capacity, the Galaxy A51 also has a slot for an external memory card that allows up to 512 GB.
The Samsung Galaxy S6 Edge features a bit more powerful processing unit than Galaxy A51, because although it has lesser RAM, and they both have 8 processing cores, the Samsung Galaxy S6 Edge also counts with an additional graphics processor and a 64-bit processing unit. Galaxy A51 has a much longer battery duration than Samsung Galaxy S6 Edge, because it has 4000mAh of battery capacity.
The Galaxy A51 captures a lot better photographs and videos than Galaxy S6 Edge, because although it has a tinier camera aperture which is worse for low light captures and video, and they both have the same video frame rates and the same 3840x2160 (4K) video quality, the Galaxy A51 also counts with a lot higher 48 mega pixels resolution back facing camera and a lot larger camera sensor capturing lot better quality videos and photographs.
Although Galaxy S6 Edge is a better device, it costs a lot more money than Samsung Galaxy A51, and it doesn't have such a good price and quality relation as the Samsung Galaxy A51. So if you want that extra specs and features, you can buy the Galaxy S6 Edge, otherwise you can save some money and buy the Samsung Galaxy A51, giving up some features and specifications.
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