Compare phones
| Global Score | |
| 90.8 | 79.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11, 10, 9.0 Pie |
| 2020-04-29 | 2019-04-10 |
| 6.26 x 2.90 x 0.34 inches | 5.69 x 2.72 x 0.31 inches |
| 6.60 ounces | 4.94 ounces |
| Prism cube black | Black, Blue, Coral and White |
| Aluminum and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 339.00 | -- |
| Display / Screen | |
| 6.5 inches | 5.9 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 437 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.2 |
| Performance | |
| Samsung Exynos 980 chipset | Exynos 7904 chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Mali-G76 MP5 GPU | Mali-G71 MP2 GPU |
| 9.27 | 8.91 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 15.38 | 11.74 |
| Camera | |
| 48.00 MP + 32.00 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 |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | -- |
| 11.55 | 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 | |
| 4500mAh Li - Polymer Battery | 3100mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 5.12 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy A51 5G is better than Galaxy A40, having a 90.8 score against 79.6. Both of these phones work with the same Android 11 operating system. The Galaxy A51 5G body is newer, but just a bit thicker and a lot heavier than Galaxy A40. The Galaxy A51 5G features a bit more powerful processor than Galaxy A40, and although they both have a Octa-Core CPU, the Galaxy A51 5G also has more RAM.
Samsung Galaxy A40 features a little more vivid screen than Galaxy A51 5G, because although it has a bit worse resolution of 1080 x 2340 pixels and a bit smaller display, it also counts with a little bit greater quantity of pixels per inch of screen. The Galaxy A51 5G has a lot bigger memory for games and applications than Samsung Galaxy A40, because it has a SD card slot that admits a maximum of 1000 GB and 128 GB internal storage capacity.
Galaxy A51 5G captures way better videos and photos than Galaxy A40, because although it has a tinier aperture, it also counts with a way bigger back camera sensor taking more light and vivid colors, a much better video resolution and a lot more MP camera. The Galaxy A51 5G has a superior battery life than Samsung Galaxy A40, because it has 4500mAh of battery capacity.
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