Compare phones
| Global Score | |
| 90.8 | 87 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11, 10 |
| 2020-04-29 | 2020-11-06 |
| 6.26 x 2.90 x 0.34 inches | 6.47 x 2.99 x 0.34 inches |
| 6.60 ounces | 6.81 ounces |
| Prism cube black | Prism Dot black, Prism Dot grey and Prism Dot white |
| Aluminum and Plastic | -- |
| Scratch-Resistant Glass | -- |
| $ 339.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.6 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 266 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Samsung Exynos 980 chipset | Qualcomm Snapdragon 750G SM7225 chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 570, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Mali-G76 MP5 GPU | Adreno 619 GPU |
| 9.27 | 9.18 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 15.38 | 15.38 |
| Camera | |
| 48.00 MP + 32.00 MP | 48.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 11.55 | 11.11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.7 | 10.7 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 6.8 |
| 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 | -- |
Comparison review
The Galaxy A51 5G has a global score of 90.8, which is slightly better than Galaxy A42's 87 general score. Both of these devices come with the same Android 11 OS. The Galaxy A51 5G is a a little bit lighter cellphone than the Galaxy A42, but both of them have the same thickness. Galaxy A51 5G has a more vivid screen than Samsung Galaxy A42, because although it has a bit smaller screen, it also counts with a much higher resolution of 1080 x 2400 pixels and a much higher screen pixel density.
The Samsung Galaxy A42's memory capacity for games and applications is very similar to Galaxy A51 5G's one, they have a slot for an external memory card that admits a maximum of 1000 GB and equal 128 GB internal storage. The Galaxy A51 5G counts with a bit faster CPU than Samsung Galaxy A42, and although they both have 8 CPU cores, the Galaxy A51 5G also has a higher amount of RAM.
The Samsung Galaxy A42 features a little better battery lifetime than Samsung Galaxy A51 5G, because it has an 11 percent bigger battery size. Samsung Galaxy A51 5G has just a bit better camera than Samsung Galaxy A42, although it has a smaller aperture, they both have the same video frame rate, the same 3840x2160 video quality and a back camera with a 48 mega-pixels.
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