Compare phones
| Global Score | |
| 87 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10 |
| 2020-11-06 | 2020-06-29 |
| 6.47 x 2.99 x 0.34 inches | 6.61 x 3.02 x 0.32 inches |
| 6.81 ounces | 6.81 ounces |
| Prism Dot black, Prism Dot grey and Prism Dot white | Black |
| -- | Plastic and Plastic |
| -- | $ 194.00 |
| Display / Screen | |
| 6.6 inches | 6.5 inches |
| 1600 x 720 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 266 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 750G SM7225 chipset | Mediatek Helio P35 chipset |
| Kryo 570, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 619 GPU | PowerVR GE8320 GPU |
| 9.18 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 15.38 | 9.84 |
| Camera | |
| 48.00 MP + 20.00 MP | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 0.33 inches (1/3.06") 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 | -- |
| 11.11 | 9.35 |
| 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 |
| 10.7 | 6.7 |
| Battery Life | |
| 5000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 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 |
Comparison review
The Galaxy A42 is better than Galaxy A21, with a score of 87 against 76.1. The Galaxy A42 body has the same weight than Galaxy A21, but it is just a bit thicker. Both phones in this review have Android operating system, but Galaxy A42 has a more recent 11 version and Galaxy A21 has Android 10, so it gives you a couple nice extra features and optimized performance.
The Samsung Galaxy A21 has a bit sharper display than Samsung Galaxy A42, because although it has a little bit smaller screen, and they both have exactly the same resolution of 720 x 1600, the Samsung Galaxy A21 also counts with a bit greater pixels density. The Samsung Galaxy A42 has a much bigger memory for applications and games than Samsung Galaxy A21, because it has 128 GB internal memory capacity and an external memory slot that holds a maximum of 1000 GB.
Samsung Galaxy A21 has a bit better hardware performance than Galaxy A42, although it has 1 GB less RAM memory, they both have the same number of cores. Samsung Galaxy A42 captures better pictures and videos than Samsung Galaxy A21, and although they both have a F1.8 aperture, the Samsung Galaxy A42 also has a way higher 48 megapixels resolution back facing camera and a way better video resolution.
The Samsung Galaxy A42 has improved battery lifetime than Samsung Galaxy A21, because it has a 5000mAh battery capacity.
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