Compare phones
| Global Score | |
| 87.1 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| -- | Android 11, 10, 9.0 Pie |
| 2018-08-24 | 2019-07-24 |
| 6.37 x 3.01 x 0.35 inches | 6.04 x 2.83 x 0.33 inches |
| 7.09 ounces | 6.13 ounces |
| Cloud silver, Lavender purple, Midnight black and Ocean blue | Blue, Gray and White |
| Aluminum and Glass (Corning Gorilla Glass 5) | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 457.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.1 inches |
| 2960 x 1440 pixels | 1560 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 514 pixels per inch | 282 pixels per inch |
| No touch screen | No touch screen |
| 8.7 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Qualcomm Snapdragon 665 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 630 GPU | Adreno 610 GPU |
| 9.63 | 9.09 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 14.14 | 13.18 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 32.00 MP |
| f/1.50 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.39 inches (1/2.55") sensor | 0.43 inches (1/2.3") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 10.23 | 11.44 |
| 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 | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Ion Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy Note9 is a little bit better than the Xiaomi Mi A3, getting a score of 87.1 against 79.2. Despite being the best cellphone in this comparison, Samsung Galaxy Note9 is an older, just a little bit thicker and somewhat heavier cellphone than the Xiaomi Mi A3. The Samsung Galaxy Note9 features a better screen than Xiaomi Mi A3, because it has a lot higher 1440 x 2960 resolution, a bit larger screen and a much greater pixels quantity per screen inch.
The Samsung Galaxy Note9 has a bit better processor than Xiaomi Mi A3, and although they both have the same number of cores, the Samsung Galaxy Note9 also has a greater amount of RAM memory. Galaxy Note9 counts with a little bit better storage to install applications and games than Xiaomi Mi A3, and although they both have the same 128 GB internal memory, the Galaxy Note9 also has a SD memory card expansion slot that supports a maximum of 512 GB.
The Xiaomi Mi A3's battery lifetime is just as good as the Galaxy Note9 one, although the Xiaomi Mi A3 also has a 4030mAh battery capacity. The Xiaomi Mi A3 captures much clearer pictures and videos than Galaxy Note9, because although it has a tinier camera aperture which is worse for low-light photos and videos and lower video frame rate, and they both have the same video resolution, the Xiaomi Mi A3 also counts with a back camera with much more megapixels and a larger back-facing camera sensor providing a better image quality.
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