Compare phones
| Global Score | |
| 74.6 | 82.4 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo | Android 9.0 Pie, 8.1 Oreo |
| -- | 2019-03-07 |
| 6.04 x 3.04 x 0.32 inches | 6.26 x 2.96 x 0.33 inches |
| 6.14 ounces | 6.14 ounces |
| 16 777 216 | Black and Blue |
| Plastic | Plastic |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 5.5 inches | 6.4 inches |
| 1280 x 720 pixels (HD) | 2280 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 267 pixels per inch | 394 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8 |
| Performance | |
| Samsung Exynos 7 Octa 7884 chipset | Samsung Exynos 7 Octa 7904 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| ARM Mali-G71 GPU | Mali-G71 MP2 GPU |
| 8.82 | 9 |
| 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 + 8.00 MP | 13.00 MP + 16.00 MP |
| f/1.90 aperture | f/1.90 aperture |
| 27.00mm focal length | 27.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.32 inches (1/3.1") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.02 | 9.13 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3000mAh Battery | 5000mAh Battery |
| Removable Battery | Non-Removable Battery |
| 4.96 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy M30 has an overall score of 82.4, which is better than the Galaxy J7 Duo's score of 74.6. These devices work with Android OS (operating system), but Samsung Galaxy M30 has a newer 9.0 Pie version and Galaxy J7 Duo has Android 8.0 Oreo. The Samsung Galaxy M30 construction has the same weight than Galaxy J7 Duo, but it's just a little bit thicker.
Galaxy M30 features a bit better hardware performance than Galaxy J7 Duo, and although they both have the same number of cores, the Galaxy M30 also has a larger amount of RAM. Galaxy M30 features a sharper display than Galaxy J7 Duo, because it has more pixels per inch of display, a lot higher 1080 x 2280 resolution and a bigger screen.
The Galaxy M30 has a lot bigger storage capacity to install applications and games than Galaxy J7 Duo, because it has more internal memory capacity and a slot for external memory cards that admits up to 512 GB. Galaxy M30 counts with a superior battery life than Samsung Galaxy J7 Duo, because it has 5000mAh of battery capacity.
Galaxy M30 takes clearer videos and photos than Galaxy J7 Duo, although it has a tinier back-facing camera sensor taking less light and duller colors, they both have the same aperture, a same resolution back-facing camera, the same 1920x1080 (Full HD) video quality and the same video frame rates.
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