Compare phones
| Global Score | |
| 73.1 | 82.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 9.0 Pie, 8.0 Oreo | Android 10, 9.0 Pie |
| 2018-07-13 | 2019-03-28 |
| 6.03 x 3.00 x 0.34 inches | 6.44 x 2.95 x 0.35 inches |
| 6.38 ounces | 7.23 ounces |
| Blue | Black and Silver |
| Scratch-Resistant Glass | -- |
| $ 107.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.4 inches |
| 1280 x 720 pixels (HD) | 2340 x 1080 pixels |
| TFT | AMOLED |
| 267 pixels per inch | 403 pixels per inch |
| -- | 430 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.1 | 8.4 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Qualcomm Snapdragon 855 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 2 GB RAM | 8 GB RAM |
| Mali-T830 MP1 GPU | Adreno 640 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 | 48.00 MP + 20.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 28.00mm focal length | -- |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 9.13 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 4000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.92 |
| 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
Xiaomi Black Shark 2 is much better than the Galaxy J7 Star, getting a global score of 82.3 against 73.1. Both devices we compare here work with Android OS (Operating System), but the Xiaomi Black Shark 2 has an older 10 version while Galaxy J7 Star has Android 9.0 Pie version. Although Xiaomi Black Shark 2 is better than Galaxy J7 Star, it must be told that it's also somewhat heavier and just a little thicker.
Xiaomi Black Shark 2 counts with a faster CPU than Samsung Galaxy J7 Star, and although they both have the same number of cores, the Xiaomi Black Shark 2 also has a greater amount of RAM. The Xiaomi Black Shark 2 counts with a better looking screen than Samsung Galaxy J7 Star, because it has a way higher display pixel density, a way higher resolution of 1080 x 2340 pixels and a larger screen.
The Xiaomi Black Shark 2 has slightly more storage capacity for applications, games, photos and videos than Galaxy J7 Star, because although it has no slot for external memory cards, it also counts with 96 GB more internal storage. Xiaomi Black Shark 2 captures much better photos and videos than Galaxy J7 Star, because although it has a tinier camera aperture which is not favorable for low-light captures and video, it also counts with a way larger sensor, a much higher video resolution and a much more megapixels back facing camera.
Xiaomi Black Shark 2 features superior battery life than Galaxy J7 Star, because it has 4000mAh of battery capacity against 3300mAh.
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