Compare phones
| Global Score | |
| 79.6 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10, 9.0 Pie | Android 11, 10 |
| 2019-04-10 | 2019-12-27 |
| 5.69 x 2.72 x 0.31 inches | 6.24 x 2.90 x 0.31 inches |
| 4.94 ounces | 6.07 ounces |
| Black, Blue, Coral and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Plastic and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 282.00 |
| Display / Screen | |
| 5.9 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 437 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 8.1 |
| Performance | |
| Exynos 7904 chipset | Samsung Exynos 9611 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G71 MP2 GPU | Mali-G72 MP3 GPU |
| 8.91 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 14.14 |
| Camera | |
| 16.00 MP + 25.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.46 | 11.55 |
| 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 | |
| 3100mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.12 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| 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
The Samsung Galaxy A51 is just a bit better than Galaxy A40, having an 85.5 score against 79.6. Both devices in our current comparison use the same Android 11 OS (Operating System), so both of them should offer very similar operating system features. Samsung Galaxy A51 is a heavier cellphone than the Galaxy A40, but both are 0.31inches thick.
The Galaxy A51 has a little better processing power than Galaxy A40. Both have a 4 GB RAM and a Octa-Core processing unit. Galaxy A40 counts with a bit sharper display than Samsung Galaxy A51, because although it has a bit lower resolution of 1080 x 2340px and a quite smaller display, it also counts with a quite higher quantity of pixels per inch in the screen.
Galaxy A51 has a lot better camera than Galaxy A40, because although it has a smaller aperture which is not favorable for taking photographs or video in poorly lited situations, it also counts with a way higher 3840x2160 (4K) video quality, a way better resolution camera in the back and a lot bigger sensor which gives a much higher photo and video quality.
The Samsung Galaxy A51 has a way bigger memory capacity for applications, games, photos and videos than Samsung Galaxy A40, and although they both have a SD card slot that holds up to 512 GB, the Samsung Galaxy A51 also has 64 GB more internal storage. The Samsung Galaxy A51 counts with longer battery life than Samsung Galaxy A40, because it has 4000mAh of battery capacity.
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