Compare phones
| Global Score | |
| 75.8 | 90.8 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2017-01-13 | 2020-04-29 |
| 6.17 x 3.06 x 0.31 inches | 6.26 x 2.90 x 0.34 inches |
| 6.56 ounces | 6.60 ounces |
| Black sky, Blue mist, Gold sand and Peach cloud | Prism cube black |
| Aluminum and Glass (Corning Gorilla Glass 4) | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 339.00 |
| Display / Screen | |
| 5.7 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 386 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 7.9 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7880 chipset | Samsung Exynos 980 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1900 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-T830 MP3 GPU | Mali-G76 MP5 GPU |
| 9 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 8.88 | 15.38 |
| Camera | |
| 16.00 MP + 16.00 MP | 48.00 MP + 32.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 9.24 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G) and HSPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.1 | 10.7 |
| Battery Life | |
| 3600mAh Li - Ion Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.6 | 6.32 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| 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 | FM Radio |
Comparison review
The Galaxy A51 5G is much better than Samsung Galaxy A7 (2017), having a general score of 90.8 against 75.8. The Galaxy A51 5G design is incredibly newer, but just a little thicker and just a bit heavier than the Samsung Galaxy A7 (2017). The Galaxy A51 5G has a little faster CPU than Samsung Galaxy A7 (2017), and although they both have the same number of cores, the Galaxy A51 5G also has 3 GB more RAM memory.
Samsung Galaxy A51 5G has a bit more vivid screen than Galaxy A7 (2017), because it has a slightly better resolution of 1080 x 2400px, a quite better pixel amount per inch in the display and a little larger display. The Galaxy A51 5G counts with a much bigger storage for applications and games than Samsung Galaxy A7 (2017), because it has 128 GB internal memory capacity and an external memory slot that supports a maximum of 1000 GB.
Galaxy A51 5G counts with better battery duration than Galaxy A7 (2017), because it has 4500mAh of battery capacity instead of 3600mAh. The Galaxy A51 5G features a much better camera than Galaxy A7 (2017), because although it has a tinier diafragm aperture which is not favorable for low-light photography and videos, it also counts with a camera with a way higher resolution and a much higher 3840x2160 video quality.
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