Compare phones
| Global Score | |
| 79.6 | 76.7 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10, 9.0 Pie | Android 11 |
| 2019-04-10 | 2021-05-27 |
| 5.69 x 2.72 x 0.31 inches | 6.23 x 2.96 x 0.33 inches |
| 4.94 ounces | 6.70 ounces |
| Black, Blue, Coral and White | Moonlight White, Neptune Blue and Space Black, |
| Plastic and Plastic | Glass and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.9 inches | 6.3 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 437 pixels per inch | 409 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 8.1 |
| Performance | |
| Exynos 7904 chipset | MediaTek Helio G85 MT6769Z chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G71 MP2 GPU | Mali G52 MC2 GPU |
| 8.91 | 9.09 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 128 GB) external memory slot |
| 11.74 | 10.02 |
| Camera | |
| 16.00 MP + 25.00 MP | 48.00 MP + 13.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm focal length | -- |
| 0.36 inches (1/2.8") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 9.46 | 11 |
| 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 HSPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.6 |
| Battery Life | |
| 3100mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.12 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| 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
The Samsung Galaxy A40 is slightly better than Xiaomi Redmi Note 8 2021, getting a global score of 79.6 against 76.7. Both of these devices include the same Android 11 operating system. Samsung Galaxy A40 is an much older phone than Xiaomi Redmi Note 8 2021, but Samsung managed to make it way lighter and a little thinner.
The Xiaomi Redmi Note 8 2021 counts with a bit more powerful CPU than Galaxy A40. Both of them have a Octa-Core CPU and a 4 GB RAM. The Samsung Galaxy A40 has a little more vivid display than Xiaomi Redmi Note 8 2021, because although it has a little bit smaller display, and they both have the same exact 1080 x 2340 resolution, the Samsung Galaxy A40 also counts with a little more pixels per inch of screen.
The Galaxy A40 features a quite bigger storage capacity for applications and games than Xiaomi Redmi Note 8 2021, and although they both have the same internal storage, the Galaxy A40 also has an external memory slot that allows a maximum of 512 GB. Xiaomi Redmi Note 8 2021 features a much better camera than Samsung Galaxy A40, because although it has a tinier aperture which is not favorable for low light images, and they both have the same video frame rate and the same 1920x1080 (Full HD) video quality, the Xiaomi Redmi Note 8 2021 also counts with a lot larger back camera sensor shooting lot higher quality photographs and a much more MP back facing camera.
Xiaomi Redmi Note 8 2021 counts with superior battery lifetime than Galaxy A40, because it has 4000mAh of battery capacity against 3100mAh.
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