Compare phones
| Global Score | |
| 79.6 | 83.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10, 9.0 Pie | -- |
| 2019-04-10 | 2019-03-06 |
| 5.69 x 2.72 x 0.31 inches | 6.20 x 2.94 x 0.30 inches |
| 4.94 ounces | 6.10 ounces |
| Black, Blue, Coral and White | Black, Blue and Purple |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.9 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | AMOLED |
| 437 pixels per inch | 403 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 8.6 |
| Performance | |
| Exynos 7904 chipset | Qualcomm Snapdragon 855 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G71 MP2 GPU | Adreno 640 GPU |
| 8.91 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 16.00 MP + 25.00 MP | 48.00 MP + 20.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| -- | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 9.46 | 12.1 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 3100mAh Li - Polymer Battery | 3300mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.12 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | 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 | -- |
Comparison review
Xiaomi Mi 9 is just a bit better than the Samsung Galaxy A40, with a global score of 83.2 against 79.6. Xiaomi Mi 9's body is a little bit thinner but heavier than Samsung Galaxy A40, and both were only released with a couple months difference. The Xiaomi Mi 9 counts with a bit faster processor than Galaxy A40, and although they both have a Octa-Core processing unit, the Xiaomi Mi 9 also has more RAM.
The Xiaomi Mi 9 counts with a little more vivid display than Galaxy A40, because although it has a just a little inferior count of pixels per screen inch, and they both have exactly the same resolution of 1080 x 2340px, the Xiaomi Mi 9 also counts with a little bit bigger screen. The Xiaomi Mi 9 counts with a way better camera than Galaxy A40, because although it has a smaller aperture which is not favorable for taking images and videos in low-light situations, it also counts with a back camera with lot more megapixels, a way better (4K) video quality and a lot larger sensor providing a lot better image quality.
The Samsung Galaxy A40 counts with a bigger memory to install applications and games or saving photos and videos than Xiaomi Mi 9, because although it has 0 less internal storage, it also counts with a slot for external memory cards that holds up to 512 GB. Xiaomi Mi 9 counts with a bit better battery lifetime than Galaxy A40, because it has 3300mAh of battery capacity instead of 3100mAh.
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