Compare phones
| Global Score | |
| 81.3 | 75.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | -- |
| 2020-04-27 | 2017-01-13 |
| 6.27 x 2.88 x 0.34 inches | 6.17 x 3.06 x 0.31 inches |
| 6.53 ounces | 6.56 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white | Black sky, Blue mist, Gold sand and Peach cloud |
| Plastic | Aluminum and Glass (Corning Gorilla Glass 4) |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 5.7 inches |
| 2400 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| Super AMOLED | Super AMOLED |
| 411 pixels per inch | 386 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.9 |
| Performance | |
| MediaTek Helio P65 MT6768 chipset | Samsung Exynos 7 Octa 7880 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1900 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Mali-G52 MC2 GPU | Mali-T830 MP3 GPU |
| 9.09 | 9 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 11.74 | 8.88 |
| Camera | |
| 48.00 MP + 20.00 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 | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.89 | 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 | |
| 5000mAh Li - Polymer Battery | 3600mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 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 |
Comparison review
Samsung Galaxy A31 is slightly better than the Samsung Galaxy A7 (2017), having an 81.3 score against 75.8. Even though the Samsung Galaxy A31 is a little thicker than the Samsung Galaxy A7 (2017), it's a little bit lighter and much newer. Samsung Galaxy A31 counts with just a bit better looking display than Samsung Galaxy A7 (2017), because it has a bit higher resolution of 1080 x 2400 pixels, a little bigger screen and a just a bit higher screen density.
Galaxy A31 features a bit superior CPU than Samsung Galaxy A7 (2017), and although they both have the same number of cores, the Galaxy A31 also has a higher amount of RAM memory. Galaxy A31 counts with a much bigger storage for apps and games than Galaxy A7 (2017), because it has 64 GB internal memory and a SD memory card expansion slot that allows a maximum of 512 GB.
Galaxy A31 has a much longer battery lifetime than Galaxy A7 (2017), because it has a 39% larger battery size. Samsung Galaxy A31 takes much clearer videos and photos than Galaxy A7 (2017), because although it has a tinier aperture which is not nice for capturing photos and video in low light situations, and they both have the same video frame rate and the same 1920x1080 (Full HD) video quality, the Samsung Galaxy A31 also counts with a camera with a much better 48 mega-pixels resolution.
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