Compare phones
| Global Score | |
| 72.7 | 83.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 8.0 Oreo | -- |
| 2018-06-29 | 2019-03-06 |
| 6.03 x 3.00 x 0.34 inches | 6.20 x 2.94 x 0.30 inches |
| 6.38 ounces | 6.10 ounces |
| 16 777 216 | Black, Blue and Purple |
| -- | Glass (Corning Gorilla Glass 5) and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| 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 |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.1 | 8.6 |
| Performance | |
| Samsung Exynos 7 Octa 7884 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 | 6 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 | 26.00mm 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 (60 fps) (4K) video resolution |
| -- | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 9.13 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.3 | 6.3 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 3300mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.28 | 5.28 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi Mi 9 has a score of 83.2, which is much better than Samsung Galaxy J7 Refine's 72.7 score. Although the Xiaomi Mi 9 and Samsung Galaxy J7 Refine were only released 8 months apart, the Xiaomi Mi 9 is just a little lighter and somewhat thinner. The Xiaomi Mi 9 has a much better looking screen than Galaxy J7 Refine, because it has a much better resolution of 1080 x 2340 pixels, much more pixels per inch of screen and a larger display.
The Xiaomi Mi 9 counts with a more powerful processing unit than Samsung Galaxy J7 Refine, and although they both have the same number of cores, the Xiaomi Mi 9 also has more RAM. Xiaomi Mi 9 features a much better camera than Samsung Galaxy J7 Refine, because although it has a tinier aperture, it also counts with a way higher 3840x2160 video resolution, a much larger back-facing camera sensor shooting much higher quality photographs and videos and a lot more mega-pixels back-facing camera.
Xiaomi Mi 9 counts with a bit bigger memory to store more games and applications than Samsung Galaxy J7 Refine, because although it has no external SD slot, it also counts with 128 GB internal memory. The Xiaomi Mi 9's battery duration is just as good as Galaxy J7 Refine's battery lifetime.
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