Compare phones
| Global Score | |
| 79.6 | 83.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10, 9.0 Pie | Android 10, 9.0 Pie, 8.0 Oreo |
| 2019-04-10 | 2018-06-05 |
| 5.69 x 2.72 x 0.31 inches | 6.10 x 2.94 x 0.30 inches |
| 4.94 ounces | 6.17 ounces |
| Black, Blue, Coral and White | Black, Blue, Gold and White |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.9 inches | 6.2 inches |
| 2340 x 1080 pixels | 2248 x 1080 pixels |
| Super AMOLED | AMOLED |
| 437 pixels per inch | 402 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 8.6 |
| Performance | |
| Exynos 7904 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G71 MP2 GPU | Adreno 630 GPU |
| 8.91 | 9.63 |
| Storage | |
| 64 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 13.3 |
| Camera | |
| 16.00 MP + 25.00 MP | 12.00 MP + 20.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm focal length | 56.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.46 | 9.9 |
| 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, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3100mAh Li - Polymer Battery | 3400mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.12 | 5.36 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Xiaomi Mi 8 has a score of 83.3, which is slightly better than the Samsung Galaxy A40's 79.6 score. Xiaomi Mi 8 is an older and somewhat heavier phone than Samsung Galaxy A40, but Xiaomi made it just a bit thinner anyway. These phones use Android operating system, but Xiaomi Mi 8 has 10 version while Samsung Galaxy A40 has Android 11.
Xiaomi Mi 8 has a little bit better hardware performance than Samsung Galaxy A40, and although they both have the same number of cores, the Xiaomi Mi 8 also has a larger amount of RAM memory. The Xiaomi Mi 8 counts with a little sharper display than Samsung Galaxy A40, because although it has a just a bit lower pixels density and a little lower resolution of 1080 x 2248, it also counts with a bit larger screen.
The Xiaomi Mi 8 takes clearer pictures and videos than Galaxy A40, because although it has a back facing camera with a much lower resolution and a tinier aperture, it also counts with a bigger sensor which gives a better image and video quality and a much better (4K) video definition. Xiaomi Mi 8 has a quite bigger memory capacity to store more apps and games than Samsung Galaxy A40, because although it has no SD memory card expansion slot, it also counts with 256 GB internal storage.
The Xiaomi Mi 8 has just a bit longer battery lifetime than Galaxy A40, because it has a 3400mAh battery size.
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