Compare phones
| Global Score | |
| 77.7 | 79.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 11, 10, 9.0 Pie |
| 2020-06-19 | 2019-04-10 |
| 6.44 x 2.96 x 0.35 inches | 5.69 x 2.72 x 0.31 inches |
| 6.77 ounces | 4.94 ounces |
| Black, Blue, Red and White | Black, Blue, Coral and White |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 5.9 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| TFT | Super AMOLED |
| 270 pixels per inch | 437 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8.2 |
| Performance | |
| Samsung Exynos 850 chipset | Exynos 7904 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Mali-G76 GPU | Mali-G71 MP2 GPU |
| 9.09 | 8.91 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.84 | 11.74 |
| Camera | |
| 48.00 MP + 13.00 MP | 16.00 MP + 25.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.36 inches (1/2.8") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.78 | 9.46 |
| 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, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3100mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.12 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy A40 has an overall score of 79.6, which is a bit better than the Galaxy A21s's general score of 77.7. These devices have Android OS (Operating System), but Samsung Galaxy A40 has newer 11 version and Galaxy A21s has Android 10 version, so it counts with some nice extra features and performance optimizations. Even though Samsung Galaxy A40 is older than Galaxy A21s, it's construction is somewhat thinner and extremely lighter.
Galaxy A21s counts with just a bit better processing power than Samsung Galaxy A40, although it has a lower amount of RAM, they both have a Octa-Core processor. The Galaxy A40 counts with a much better looking display than Galaxy A21s, because although it has a bit smaller display, it also counts with a way greater display density and a lot higher 1080 x 2340 pixels resolution.
The Samsung Galaxy A40 features a bigger memory for games and applications than Samsung Galaxy A21s, and although they both have a slot for an SD memory card that admits up to 512 GB, the Samsung Galaxy A40 also has 32 GB more internal memory capacity. The Samsung Galaxy A21s counts with a superior camera than Galaxy A40, because although it has a tinier diafragm aperture which is not favorable for shooting photographs in low-light environments, and they both have the same 30 frames per second video frame rate and the same 1920x1080 (Full HD) video definition, the Samsung Galaxy A21s also counts with a much bigger back-facing camera sensor and a lot more megapixels camera in the back.
Samsung Galaxy A21s has a way better battery performance than Galaxy A40, because it has a 61% greater battery size.
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