Compare phones
| Global Score | |
| 73.5 | 83.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 9.0 Pie, 7.0 Nougat | -- |
| 2017-07-01 | 2019-03-06 |
| 6.00 x 2.94 x 0.31 inches | 6.20 x 2.94 x 0.30 inches |
| 6.38 ounces | 6.10 ounces |
| Black, Gold, Rose gold and Silver | Black, Blue and Purple |
| Aluminum | Glass (Corning Gorilla Glass 5) and Metal |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.4 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| Super AMOLED | AMOLED |
| 401 pixels per inch | 403 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.9 | 8.6 |
| 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 |
| 3 GB RAM | 6 GB RAM |
| Mali-T830 MP2 GPU | Adreno 640 GPU |
| 8.73 | 9.63 |
| Storage | |
| 16 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 7.48 | 10.1 |
| Camera | |
| 13.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| -- | 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 |
| 9.02 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 3600mAh Battery | 3300mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.6 | 5.28 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Xiaomi Mi 9 has a global score of 83.2, which is much better than Samsung Galaxy J7 (2017)'s overall score of 73.5. Xiaomi Mi 9 is a newer cellphone, and it's also a little bit lighter and a little bit thinner than Samsung Galaxy J7 (2017). The Xiaomi Mi 9 counts with a bit better screen than Galaxy J7 (2017), because it has a bigger display, a just a bit better quantity of pixels per display inch and a slightly higher 1080 x 2340 pixels resolution.
Xiaomi Mi 9 counts with a very superior storage to install applications and games or saving photos and videos than Samsung Galaxy J7 (2017), because although it has no external memory card slot, it also counts with 128 GB internal memory capacity. Xiaomi Mi 9 has a greater processing power than Samsung Galaxy J7 (2017), and although they both have 8 cpu cores, the Xiaomi Mi 9 also has a higher amount of RAM.
The Galaxy J7 (2017) features just a little bit longer battery life than Xiaomi Mi 9, because it has 3600mAh of battery capacity against 3300mAh. The Xiaomi Mi 9 features a greater camera than Galaxy J7 (2017), because although it has a tinier aperture, it also counts with a lot better 48 megapixels resolution back-facing camera and a much higher 3840x2160 (4K) video definition.
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