Compare phones
| Global Score | |
| 73.5 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 9.0 Pie, 7.0 Nougat | Android 11, 10, 9.0 Pie |
| 2017-07-01 | 2019-07-24 |
| 6.00 x 2.94 x 0.31 inches | 6.04 x 2.83 x 0.33 inches |
| 6.38 ounces | 6.13 ounces |
| Black, Gold, Rose gold and Silver | Blue, Gray and White |
| Aluminum | Glass (Corning Gorilla Glass 5) and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.1 inches |
| 1920 x 1080 pixels (Full HD) | 1560 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 401 pixels per inch | 282 pixels per inch |
| No touch screen | No touch screen |
| 7.9 | 7.3 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Qualcomm Snapdragon 665 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Mali-T830 MP2 GPU | Adreno 610 GPU |
| 8.73 | 9.09 |
| Storage | |
| 16 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 7.48 | 13.18 |
| Camera | |
| 13.00 MP + 13.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| -- | 0.43 inches (1/2.3") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.02 | 11.44 |
| 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+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3600mAh Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.6 | 5.92 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| 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 | FM Radio |
Comparison review
Xiaomi Mi A3 has an overall score of 79.2, which is a bit better than the Samsung Galaxy J7 (2017)'s 73.5 score. The Xiaomi Mi A3 body is notably newer and a little bit lighter than the Samsung Galaxy J7 (2017)'s, but it's just a little thicker. Both phones in this comparison review work with Android OS (Operating System), but the Xiaomi Mi A3 has the previous 11 version and Samsung Galaxy J7 (2017) has Android 9.0 Pie version.
Xiaomi Mi A3 counts with a little bit better processing power than Galaxy J7 (2017), and although they both have a Octa-Core processor, the Xiaomi Mi A3 also has more RAM memory. Samsung Galaxy J7 (2017) features a bit more vivid display than Xiaomi Mi A3, because although it has a quite smaller screen, it also counts with a better resolution of 1080 x 1920px and a greater pixels amount in each inch in the display.
The Xiaomi Mi A3 captures way better photographs and videos than Samsung Galaxy J7 (2017), because although it has a tinier diafragm aperture which is worse for low-light photography, it also counts with a way better 3840x2160 video resolution and a lot better 48 MP resolution back-facing camera. The Xiaomi Mi A3 has much more memory capacity for games and applications than Samsung Galaxy J7 (2017), and although they both have a slot for SD memory cards that admits up to 256 GB, the Xiaomi Mi A3 also has more internal storage.
Xiaomi Mi A3 features just a bit better battery lifetime than Samsung Galaxy J7 (2017), because it has a 12% more battery capacity.
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