Compare phones
| Global Score | |
| 73.1 | 78 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 9.0 Pie, 8.0 Oreo | -- |
| 2018-07-13 | 2018-07-27 |
| 6.03 x 3.00 x 0.34 inches | 6.25 x 2.97 x 0.29 inches |
| 6.38 ounces | 5.93 ounces |
| Blue | Black, Blue, Gold, Pink and Red |
| -- | Aluminum |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 107.00 | -- |
| Display / Screen | |
| 5.5 inches | 6 inches |
| 1280 x 720 pixels (HD) | 2160 x 1080 pixels |
| TFT | IPS LCD |
| 267 pixels per inch | 402 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 2 GB RAM | 6 GB RAM |
| Mali-T830 MP1 GPU | Adreno 512 GPU |
| 8.73 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | No SD card slot |
| 9.44 | 10.1 |
| Camera | |
| 13.00 MP + 13.00 MP | 12.00 MP + 20.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 28.00mm focal length | -- |
| 0.33 inches (1/3.06") sensor | 0.34 inches (1/2.9") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 9.13 | 9.79 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.3 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 3010mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 4.96 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | 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 A2 is a little bit better than the Samsung Galaxy J7 Star, with a 78 score against 73.1. Xiaomi Mi A2 is a thinner and just a little bit lighter phone than Samsung Galaxy J7 Star, even when both were released with only a couple months difference. The Xiaomi Mi A2 has a much better screen than Samsung Galaxy J7 Star, because it has a much higher resolution of 1080 x 2160 pixels, a much better quantity of pixels per inch of screen and a little larger screen.
The Xiaomi Mi A2 counts with a little bit more memory capacity for applications and games than Galaxy J7 Star, because although it has no slot for external memory cards, it also counts with 128 GB internal storage capacity. The Xiaomi Mi A2 features just a bit better performance than Samsung Galaxy J7 Star, and although they both have the same number of cores, the Xiaomi Mi A2 also has a higher amount of RAM memory.
Samsung Galaxy J7 Star features just a bit better battery duration than Xiaomi Mi A2, because it has 3300mAh of battery capacity. The Xiaomi Mi A2 takes slightly better photographs and videos than Samsung Galaxy J7 Star, because although it has a tinier aperture which is not so good for taking photographs in low-light situations and a less megapixels back facing camera, it also counts with a bigger back camera sensor taking more light and vivid colors and a way better video definition.
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