| Global Score | |
| 75.4 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 4.4.4 | Android 11, 10, 9.0 Pie |
| 2015-01-11 | 2019-07-24 |
| 5.94 x 3.00 x 0.25 inches | 6.04 x 2.83 x 0.33 inches |
| 4.97 ounces | 6.13 ounces |
| Blue, Gold and White | Blue, Gray and White |
| Metal | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 360.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.1 inches |
| 1080 x 1920 pixels (Full HD) | 1560 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 401 pixels per inch | 282 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 615 8939 chipset | Qualcomm Snapdragon 665 chipset |
| 64-bit ARM Cortex-A53 (Quad-Core 1500 MHz + Quad-Core 1000 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 2 GB (800 MHz) RAM | 4 GB RAM |
| Adreno 405 (500 MHz) GPU | Adreno 610 GPU |
| 9.45 | 9.09 |
| Storage | |
| 16 GB internal memory | 128 GB internal memory |
| microSD, microSDHC, microSDXC (up to 64 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 6.16 | 13.18 |
| Camera | |
| 13.00 MP + 5.00 MP | 48.00 MP + 32.00 MP |
| -- | 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 |
| 8.03 | 11.44 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 7 | 6.7 |
| Battery Life | |
| 2600mAh Li-Ion Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 17 hours talk time | -- |
| 4.56 | 5.92 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Infra-red port |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Xiaomi Mi A3 has a global score of 79.2, which is slightly better than the Galaxy A7's 75.4 score. Both of these phones work with Android OS, but the Xiaomi Mi A3 has the older 11 version while Galaxy A7 has Android 4.4.4. Although the Xiaomi Mi A3 is noticeably newer than the Galaxy A7, it is much thicker and heavier.
The Samsung Galaxy A7 has a bit better processing power than Xiaomi Mi A3, because although it has a lower amount of RAM, and they both have 8 CPU cores, the Samsung Galaxy A7 also counts with a 64 bits CPU and an additional GPU. Galaxy A7 has a way better display than Xiaomi Mi A3, because although it has a little smaller screen, it also counts with a higher quantity of pixels per inch of display and a higher resolution of 1920 x 1080 pixels.
The Xiaomi Mi A3 takes a lot better photographs and videos than Galaxy A7, because it has a camera with way more mega-pixels and a lot higher video resolution. Xiaomi Mi A3 has much more storage to install applications and games than Galaxy A7, because it has 128 GB internal storage and a slot for SD memory cards that holds a maximum of 256 GB.
Xiaomi Mi A3 counts with a much longer battery duration than Galaxy A7, because it has a 4030mAh battery capacity against 2600mAh.
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