Compare phones
| Global Score | |
| 73.1 | 86.6 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 9.0 Pie, 8.0 Oreo | Android 10 |
| 2018-07-13 | 2020-05-08 |
| 6.03 x 3.00 x 0.34 inches | 6.64 x 3.04 x 0.41 inches |
| 6.38 ounces | 7.83 ounces |
| Blue | Armor gray, Lightning black and Star silver |
| -- | Aluminum and Aluminum |
| Scratch-Resistant Glass | -- |
| $ 107.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.7 inches |
| 1280 x 720 pixels (HD) | 2400 x 1080 pixels |
| TFT | OLED |
| 267 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7870 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 |
| 2 GB RAM | 8 GB RAM |
| Mali-T830 MP1 GPU | Adreno 650 GPU |
| 8.73 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | No SD card slot |
| 9.44 | 10.1 |
| Camera | |
| 13.00 MP + 13.00 MP | 64.00 MP + 20.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 28.00mm 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 |
| 9.13 | 12.43 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 10.7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 4720mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 6.56 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Xiaomi Black Shark 3 is much better than the Galaxy J7 Star, with an 86.6 score against 73.1. Both phones in this review use Android OS (operating system), but the Xiaomi Black Shark 3 has an older 10 version while Galaxy J7 Star has Android 9.0 Pie version. Although the Xiaomi Black Shark 3 is newer than the Galaxy J7 Star, it's thicker and heavier.
Xiaomi Black Shark 3 has a better display than Samsung Galaxy J7 Star, because it has a higher pixel count per inch of display, a bigger screen and a much better 1080 x 2400 resolution. Xiaomi Black Shark 3 features a quite superior hardware performance than Samsung Galaxy J7 Star, and although they both have a Octa-Core processing unit, the Xiaomi Black Shark 3 also has 6 GB more RAM.
Xiaomi Black Shark 3 has a slightly bigger storage capacity for applications and games than Galaxy J7 Star, because although it has no external SD slot, it also counts with 128 GB internal storage capacity. Xiaomi Black Shark 3 counts with a very superior battery duration than Galaxy J7 Star, because it has a 43% greater battery size.
Xiaomi Black Shark 3 captures much better videos and photos than Galaxy J7 Star, because although it has a smaller aperture which is not favorable for low-light captures and videos, it also counts with a lot larger back-facing camera sensor providing a much better image quality, a way higher 3840x2160 video quality and a back-facing camera with a much better resolution.
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