Compare phones
| Global Score | |
| 72.7 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 8.0 Oreo | Android 11, 10, 9.0 Pie |
| 2018-06-29 | 2019-07-24 |
| 6.03 x 3.00 x 0.34 inches | 6.04 x 2.83 x 0.33 inches |
| 6.38 ounces | 6.13 ounces |
| 16 777 216 | Blue, Gray and White |
| -- | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.1 inches |
| 1280 x 720 pixels (HD) | 1560 x 720 pixels |
| TFT | Super AMOLED |
| 267 pixels per inch | 282 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 7.3 |
| Performance | |
| Samsung Exynos 7 Octa 7884 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 |
| 2 GB RAM | 4 GB RAM |
| Mali-T830 MP1 GPU | Adreno 610 GPU |
| 8.73 | 9.09 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 9.44 | 13.18 |
| Camera | |
| 13.00 MP + 13.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 28.00mm focal length | -- |
| 0.33 inches (1/3.06") sensor | 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 |
| 9.13 | 11.44 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | Infra-red port |
| -- | 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 A3 is a little bit better than Samsung Galaxy J7 Refine, with a 79.2 score against 72.7. Xiaomi Mi A3 is a newer cellphone, and it's also a bit thinner and a little bit lighter than Samsung Galaxy J7 Refine. Both devices in this comparison work with Android OS (Operating System), but Xiaomi Mi A3 has 11 version while Samsung Galaxy J7 Refine has Android 8.0 Oreo version.
Xiaomi Mi A3 has a bit more vivid display than Samsung Galaxy J7 Refine, because it has a little larger screen, a little bit higher resolution of 720 x 1560px and a little greater screen density. Xiaomi Mi A3 counts with a little bit better performance than Galaxy J7 Refine, and although they both have a Octa-Core processor, the Xiaomi Mi A3 also has 2 GB more RAM memory.
The Xiaomi Mi A3 takes much clearer photographs and videos than Samsung Galaxy J7 Refine, because although it has a tinier aperture which is not good for low light photos, it also counts with a much bigger back-facing camera sensor shooting much higher quality photos, a lot better 3840x2160 video definition and a lot better 48 megapixels resolution back-facing camera.
The Xiaomi Mi A3 has a very superior memory for apps and games than Galaxy J7 Refine, because although it has an external SD slot that supports up to 256 GB against 400 GB, it also counts with 128 GB internal storage capacity. The Xiaomi Mi A3 features longer battery performance than Samsung Galaxy J7 Refine, because it has a 22% more battery size.
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