Compare phones
| Global Score | |
| 74.6 | 78.9 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo | Android 10, 9.0 Pie, 8.1 Oreo |
| -- | 2019-02-05 |
| 6.04 x 3.04 x 0.32 inches | 6.16 x 2.93 x 0.35 inches |
| 6.14 ounces | 6.56 ounces |
| 16 777 216 | Charcoal black and Ocean blue |
| Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 5.5 inches | 6.3 inches |
| 1280 x 720 pixels (HD) | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 267 pixels per inch | 409 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 | 4 GB RAM |
| ARM Mali-G71 GPU | Mali-G71 MP2 GPU |
| 8.82 | 8.91 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.88 | 11.74 |
| Camera | |
| 13.00 MP + 8.00 MP | 13.00 MP + 8.00 MP |
| f/1.90 aperture | f/1.90 aperture |
| 27.00mm focal length | 12.00mm 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 | 9.02 |
| 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 Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 4.96 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| 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 M20 is slightly better than Galaxy J7 Duo, with a 78.9 score against 74.6. Both of these devices include Android operating system, but the Samsung Galaxy M20 has the older 10 version and Galaxy J7 Duo has Android 8.0 Oreo version. The Samsung Galaxy M20 design is just a little bit heavier and a little bit thicker than the Galaxy J7 Duo.
Samsung Galaxy M20 has a better display than Galaxy J7 Duo, because it has a way higher resolution of 1080 x 2340 pixels, a way higher screen pixels density and a bit larger display. Galaxy M20 counts with much more memory capacity for games and applications than Galaxy J7 Duo, because it has 64 GB internal storage and a SD memory slot that supports a maximum of 512 GB.
The Galaxy M20 counts with a little faster processor than Samsung Galaxy J7 Duo. They have the same number of cores and a 4 GB RAM memory. Samsung Galaxy M20 features a camera that is just as good as Samsung Galaxy J7 Duo's camera, and although the Samsung Galaxy M20 has a tinier sensor capturing worse quality videos and photos, they both have the same 1920x1080 (Full HD) video resolution, a F1.9 aperture, the same video frame rate and the same resolution back-facing camera.
The Galaxy M20 has a superior battery duration than Galaxy J7 Duo, because it has a 67% greater battery size.
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