Compare phones
| Global Score | |
| 90.8 | 75.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | -- |
| 2020-04-29 | 2017-01-13 |
| 6.26 x 2.90 x 0.34 inches | 6.17 x 3.06 x 0.31 inches |
| 6.60 ounces | 6.56 ounces |
| Prism cube black | Black sky, Blue mist, Gold sand and Peach cloud |
| Aluminum and Plastic | Aluminum and Glass (Corning Gorilla Glass 4) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 339.00 | -- |
| 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 980 chipset | Samsung Exynos 7 Octa 7880 chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1900 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Mali-G76 MP5 GPU | Mali-T830 MP3 GPU |
| 9.27 | 9 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 15.38 | 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 (480 fps) (HD) slow motion video | -- |
| 11.55 | 9.24 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G) and HSPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.1 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 3600mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 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 5G is better than the Galaxy A7 (2017), with a score of 90.8 against 75.8. Galaxy A51 5G is a newer cellphone than Galaxy A7 (2017), but it's a bit heavier and just a little thicker. Samsung Galaxy A51 5G features a bit better display than Galaxy A7 (2017), because it has a slightly higher 1080 x 2400 resolution, a little higher number of pixels in each inch in the screen and a quite larger display.
Galaxy A51 5G features a bit faster CPU than Galaxy A7 (2017), and although they both have 8 CPU cores, the Galaxy A51 5G also has a higher amount of RAM. Galaxy A51 5G features much more memory to install games and applications than Galaxy A7 (2017), because it has an external SD slot that holds up to 1000 GB and 128 GB internal storage.
The Samsung Galaxy A51 5G shoots much better photos and videos than Galaxy A7 (2017), because although it has a smaller aperture which is not good for low-light photos, it also counts with a much higher video quality and a lot higher 48 mega-pixels resolution camera. Galaxy A51 5G features superior battery life than Galaxy A7 (2017), because it has a 25 percent greater battery size.
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