Compare phones
| Global Score | |
| 91.8 | 79.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | Android 11, 10, 9.0 Pie |
| 2021-01-29 | 2019-04-10 |
| 5.97 x 2.80 x 0.31 inches | 5.69 x 2.72 x 0.31 inches |
| 6.03 ounces | 4.94 ounces |
| Gray, Phantom pink, Violet and White | Black, Blue, Coral and White |
| Aluminum and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 5.9 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | Super AMOLED |
| 424 pixels per inch | 437 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 8.2 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Exynos 7904 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Mali-G71 MP2 GPU |
| 9.63 | 8.91 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 12.00 MP + 10.00 MP | 16.00 MP + 25.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.57 inches (1/1.76") sensor | 0.36 inches (1/2.8") sensor |
| 7680 x 4320 (24 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 10.78 | 9.46 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3100mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 5.12 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| 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 | FM Radio |
Comparison review
Galaxy S21 is much better than Samsung Galaxy A40, having a global score of 91.8 against 79.6. Both devices we are comparing work with the same Android 11 OS, so both of them should provide all the same OS features. Galaxy S21 is a heavier cellphone than Samsung Galaxy A40, but both of them are 0.31inches thick.
Galaxy S21 counts with a brighter screen than Galaxy A40, because although it has a just a bit less pixels per inch in the display, it also counts with a quite bigger screen and a bit higher resolution of 1080 x 2400 pixels. The Galaxy S21 counts with a bit better hardware performance than Samsung Galaxy A40, and although they both have a Octa-Core processing unit, the Galaxy S21 also has a larger amount of RAM.
The Samsung Galaxy A40 has a greater storage capacity for games and applications than Samsung Galaxy S21, because although it has 0 less internal memory, it also counts with a SD card slot that admits a maximum of 512 GB. The Samsung Galaxy S21 has superior battery lifetime than Galaxy A40, because it has a 4000mAh battery capacity instead of 3100mAh.
The Samsung Galaxy S21 shoots much better pictures and videos than Samsung Galaxy A40, because although it has a much less mega-pixels resolution back camera and a smaller aperture, it also counts with a lot bigger sensor providing a much higher image quality and a much higher video resolution.
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