Compare phones
| Global Score | |
| 79.6 | 91.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10, 9.0 Pie | Android 11 |
| 2019-04-10 | 2021-01-29 |
| 5.69 x 2.72 x 0.31 inches | 5.97 x 2.80 x 0.31 inches |
| 4.94 ounces | 6.03 ounces |
| Black, Blue, Coral and White | Gray, Phantom pink, Violet and White |
| Plastic and Plastic | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 722.00 |
| Display / Screen | |
| 5.9 inches | 6.2 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | Dynamic AMOLED |
| 437 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 9.2 |
| Performance | |
| Exynos 7904 chipset | Qualcomm Snapdragon 888 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G71 MP2 GPU | Adreno 660 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 | 12.00 MP + 10.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.57 inches (1/1.76") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.46 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 3100mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.12 | 5.92 |
| 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 | FM Radio |
Comparison review
The Samsung Galaxy S21 is better than Samsung Galaxy A40, with a 91.8 score against 79.6. Samsung Galaxy S21's body has the same thickness than the Samsung Galaxy A40, but it is heavier. Both of these phones include the same Android 11 OS (operating system), so you shouldn't perceive any differences regarding that.
Galaxy S21 features a more vivid screen than Samsung Galaxy A40, because although it has a little worse quantity of pixels per inch of screen, it also counts with a bit higher resolution of 1080 x 2400 pixels and a little larger screen. Galaxy A40 counts with a bigger memory to install applications and games than Samsung Galaxy S21, because although it has just 64 GB internal storage capacity, it also counts with a slot for external memory cards that admits a maximum of 512 GB.
Galaxy S21 counts with a bit faster processing unit than Galaxy A40, and although they both have 8 CPU cores, the Galaxy S21 also has a larger amount of RAM. The Samsung Galaxy S21 counts with improved battery life than Galaxy A40, because it has a 29 percent bigger battery capacity. Samsung Galaxy S21 has a superior camera than Galaxy A40, because although it has a tinier aperture and a camera with a way worse 12 MP resolution, it also counts with a way bigger back camera sensor providing a way better image quality and a much higher 7680x4320 video quality.
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