Compare phones
| Global Score | |
| 74.6 | 86.6 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 8.0 Oreo | Android 10 |
| -- | 2020-05-08 |
| 6.04 x 3.04 x 0.32 inches | 6.64 x 3.04 x 0.41 inches |
| 6.14 ounces | 7.83 ounces |
| 16 777 216 | Armor gray, Lightning black and Star silver |
| Plastic | Aluminum and Aluminum |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 5.5 inches | 6.7 inches |
| 1280 x 720 pixels (HD) | 2400 x 1080 pixels |
| Super AMOLED | OLED |
| 267 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7884 chipset | Qualcomm Snapdragon 865 SM8250 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 585, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| ARM Mali-G71 GPU | Adreno 650 GPU |
| 8.82 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 8.88 | 10.1 |
| Camera | |
| 13.00 MP + 8.00 MP | 64.00 MP + 20.00 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 (60 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.02 | 12.43 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.1 | 10.7 |
| Battery Life | |
| 3000mAh Battery | 4720mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 4.96 | 6.56 |
| 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, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Xiaomi Black Shark 3 is much better than the Samsung Galaxy J7 Duo, with an 86.6 score against 74.6. Even being the best in our current comparison, the Xiaomi Black Shark 3 is a much thicker and extremely heavier device than the Samsung Galaxy J7 Duo. Both of these phones come with Android operating system, but Xiaomi Black Shark 3 has the older 10 version and Samsung Galaxy J7 Duo has Android 8.0 Oreo.
Xiaomi Black Shark 3 has a brighter screen than Samsung Galaxy J7 Duo, because it has a lot higher resolution of 1080 x 2400px, a bigger screen and more pixels per inch in the display. Xiaomi Black Shark 3 has a quite bigger storage to store more apps and games than Samsung Galaxy J7 Duo, because although it has no external SD slot, it also counts with 128 GB internal memory.
The Xiaomi Black Shark 3 features just a bit better performance than Samsung Galaxy J7 Duo, and although they both have 8 CPU cores, the Xiaomi Black Shark 3 also has more RAM. Xiaomi Black Shark 3 features a much better battery performance than Galaxy J7 Duo, because it has a 57% greater battery capacity.
The Xiaomi Black Shark 3 shoots much clearer videos and photos than Galaxy J7 Duo, because it has a way better 3840x2160 (4K) video definition, a bigger camera aperture to capture better low light captures and videos, a back camera with lot more MP and a lot bigger back-facing camera sensor taking more light and vivid colors.
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