Compare phones
| Global Score | |
| 77.7 | 87 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 11, 10 |
| 2020-06-19 | 2020-11-06 |
| 6.44 x 2.96 x 0.35 inches | 6.47 x 2.99 x 0.34 inches |
| 6.77 ounces | 6.81 ounces |
| Black, Blue, Red and White | Prism Dot black, Prism Dot grey and Prism Dot white |
| Display / Screen | |
| 6.5 inches | 6.6 inches |
| 1600 x 720 pixels | 1600 x 720 pixels |
| TFT | Super AMOLED |
| 270 pixels per inch | 266 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 7.2 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 750G SM7225 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 570, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Mali-G76 GPU | Adreno 619 GPU |
| 9.09 | 9.18 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 9.84 | 15.38 |
| Camera | |
| 48.00 MP + 13.00 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 | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 10.78 | 11.11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 6.8 |
| 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 |
Comparison review
The Galaxy A42 has an overall score of 87, which is better than Galaxy A21s's score of 77.7. Galaxy A42's design is a bit thinner but a little bit heavier than the Galaxy A21s, and they were released with only a couple months difference. Both of these phones use Android OS (operating system), but the Galaxy A42 has the newer 11 version and Galaxy A21s has Android 10, providing lots of additional features and performance improvements.
Samsung Galaxy A42 has a little faster processor than Galaxy A21s, and although they both have the same number of cores, the Samsung Galaxy A42 also has a greater amount of RAM memory. Galaxy A42 features a display that's just as good as Samsung Galaxy A21s's screen, because although the Galaxy A42 has a little bit less pixels per display inch, and they both have an equal resolution of 720 x 1600, it also counts with a quite bigger display.
The Galaxy A42 has a little bit better camera than Samsung Galaxy A21s, and although they both have a back facing camera with a 48 MP resolution, the Galaxy A42 also has a much better (4K) video resolution and a bigger camera aperture. Galaxy A42 counts with much more memory capacity to install applications and games or saving photos and videos than Galaxy A21s, because it has more internal storage capacity and a SD extension slot that allows a maximum of 1000 GB.
Galaxy A42's battery duration is very similar to the Galaxy A21s one.
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