Compare phones
| Global Score | |
| 75.3 | 88 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo, 7.1 Nougat | Android 11, 10 |
| -- | 2020-08-06 |
| 5.97 x 2.95 x 0.31 inches | 6.27 x 2.93 x 0.37 inches |
| 6.00 ounces | 7.16 ounces |
| Black, Gold and Rose gold | Mirage black and Mirage blue |
| Metal | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 401 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 7.9 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Samsung Exynos 9611 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-T830 MP1 GPU | Mali-G72 MP3 GPU |
| 8.73 | 9.36 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.88 | 14.14 |
| Camera | |
| 13.00 MP + 13.00 MP | 64.00 MP + 32.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.59 inches (1/1.7") 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 |
| 9.13 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3300mAh Battery | 6000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 7.52 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy M31s has a general score of 88, which is much better than the Galaxy J7 Prime 2's general score of 75.3. Galaxy M31s is a somewhat heavier and somewhat thicker phone than the Galaxy J7 Prime 2. These devices use Android operating system, but the Galaxy M31s has the older 11 version and Galaxy J7 Prime 2 has Android 9.0 Pie version.
The Galaxy M31s features a little bit better hardware performance than Samsung Galaxy J7 Prime 2, and although they both have a Octa-Core CPU, the Galaxy M31s also has more RAM memory. Galaxy M31s has a little more vivid screen than Galaxy J7 Prime 2, because it has a larger screen, a just a bit more pixels per display inch and a slightly higher 1080 x 2400 resolution.
Galaxy M31s features a much bigger memory for apps and games than Galaxy J7 Prime 2, because it has more internal storage and an external SD slot that admits a maximum of 512 GB. Samsung Galaxy M31s has a way better battery performance than Samsung Galaxy J7 Prime 2, because it has a 6000mAh battery size.
The Galaxy M31s takes way better photographs and videos than Galaxy J7 Prime 2, because it has a way larger camera sensor providing a much higher image quality, a back facing camera with a much better resolution, a much higher 3840x2160 video quality and a bigger aperture for better images and videos in poorly lited situations.
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