Compare phones
| Global Score | |
| 74.6 | 83.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 8.0 Oreo | -- |
| -- | 2019-03-06 |
| 6.04 x 3.04 x 0.32 inches | 6.20 x 2.94 x 0.30 inches |
| 6.14 ounces | 6.10 ounces |
| 16 777 216 | Black, Blue and Purple |
| Plastic | 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 |
| Super AMOLED | 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 |
| 4 GB RAM | 6 GB RAM |
| ARM Mali-G71 GPU | Adreno 640 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 | 48.00 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 | 0.5 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 (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Micro SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.1 | 6.3 |
| Battery Life | |
| 3000mAh Battery | 3300mAh Battery |
| Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 4.96 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| 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 Mi 9 has a general score of 83.2, which is much better than Galaxy J7 Duo's 74.6 global score. Xiaomi Mi 9 is a just a little bit lighter and just a bit thinner device than the Galaxy J7 Duo. Xiaomi Mi 9 has a lot better screen than Samsung Galaxy J7 Duo, because it has a bigger screen, a lot higher resolution of 1080 x 2340px and a lot better pixel amount per inch of display.
Xiaomi Mi 9 has more memory to install applications and games or saving photos and videos than Galaxy J7 Duo, because although it has no slot for an external memory card, it also counts with 128 GB internal memory. Xiaomi Mi 9 features a bit better CPU than Galaxy J7 Duo, and although they both have 8 cpu cores, the Xiaomi Mi 9 also has 2 GB more RAM memory.
Xiaomi Mi 9 shoots much clearer pictures and videos than Samsung Galaxy J7 Duo, because it has a way better 3840x2160 video resolution, a much more MP back camera, a much larger sensor capturing way better quality videos and photos and a bigger aperture to capture better photography and video in low light situations.
The Xiaomi Mi 9 has a bit longer battery life than Galaxy J7 Duo, because it has a 3300mAh battery capacity.
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