Compare phones
| Global Score | |
| 85.5 | 75.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | -- |
| 2019-12-27 | 2017-01-13 |
| 6.24 x 2.90 x 0.31 inches | 6.17 x 3.06 x 0.31 inches |
| 6.07 ounces | 6.56 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black sky, Blue mist, Gold sand and Peach cloud |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass 4) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 5.7 inches |
| 2400 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 386 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.9 |
| Performance | |
| Samsung Exynos 9611 chipset | Samsung Exynos 7 Octa 7880 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1900 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Mali-G72 MP3 GPU | Mali-T830 MP3 GPU |
| 9.27 | 9 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 14.14 | 8.88 |
| Camera | |
| 48.00 MP + 32.00 MP | 16.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.90 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 11.55 | 9.24 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G) and HSPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.1 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3600mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.6 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | NFC |
| 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 | FM Radio |
Comparison review
The Galaxy A51 is better than the Galaxy A7 (2017), having a general score of 85.5 against 75.8. Galaxy A51's design has the same thickness than the Galaxy A7 (2017), but it is just a little lighter. The Samsung Galaxy A51 counts with a little better hardware performance than Galaxy A7 (2017), and although they both have a Octa-Core processing unit, the Samsung Galaxy A51 also has 1 GB more RAM memory.
Galaxy A51 features a bit better screen than Galaxy A7 (2017), because it has a just a bit more pixels per screen inch, a quite larger display and a bit higher resolution of 1080 x 2400px. Samsung Galaxy A51 features a very superior camera than Galaxy A7 (2017), because although it has a smaller aperture which is not nice for low-light captures and videos, it also counts with a much higher 48 mega pixels resolution camera in the back and a lot higher 3840x2160 video definition.
The Galaxy A51 counts with a much bigger storage capacity to install applications and games than Galaxy A7 (2017), because it has a slot for SD memory cards that holds a maximum of 512 GB and 128 GB internal storage. Samsung Galaxy A51 counts with just a bit longer battery life than Galaxy A7 (2017), because it has 4000mAh of battery capacity.
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