Compare phones
| Global Score | |
| 76.1 | 87 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 11, 10 |
| 2020-06-29 | 2020-11-06 |
| 6.61 x 3.02 x 0.32 inches | 6.47 x 2.99 x 0.34 inches |
| 6.81 ounces | 6.81 ounces |
| Black | Prism Dot black, Prism Dot grey and Prism Dot white |
| Plastic and Plastic | -- |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.6 inches |
| 1600 x 720 pixels | 1600 x 720 pixels |
| IPS LCD | Super AMOLED |
| 270 pixels per inch | 266 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 7.2 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 750G SM7225 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 570, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| PowerVR GE8320 GPU | Adreno 619 GPU |
| 9.27 | 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 | |
| 16.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.33 inches (1/3.06") 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 |
| 9.35 | 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 | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 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
Samsung Galaxy A42 has a general score of 87, which is much better than Samsung Galaxy A21's 76.1 global score. Both of these phones have Android operating system, but the Samsung Galaxy A42 has 11 version while Samsung Galaxy A21 has Android 10 version, so it gives you a lot of extra features. The Samsung Galaxy A42 is a a little bit thicker device than Samsung Galaxy A21, but both have the same weight.
Samsung Galaxy A21 counts with just a little better hardware performance than Galaxy A42, although it has 1 GB less RAM memory, they both have 8 cpu cores. Samsung Galaxy A21 features a bit sharper screen than Samsung Galaxy A42, because although it has a bit smaller screen, and they both have the same resolution of 720 x 1600, the Samsung Galaxy A21 also counts with a little higher display pixel density.
Galaxy A42 has a superior camera than Galaxy A21, and although they both have a F1.8 aperture, the Galaxy A42 also has a way better 3840x2160 (4K) video resolution and a camera with lot more megapixels. Samsung Galaxy A42 features a lot bigger memory capacity for games and applications than Galaxy A21, because it has an external SD slot that allows up to 1000 GB and 128 GB internal memory capacity.
The Samsung Galaxy A42 counts with greater battery lifetime than Samsung Galaxy A21, because it has a 25 percent bigger battery capacity.
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