Compare phones
| Global Score | |
| 84.1 | 87 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11, 10 |
| 2020-03-23 | 2020-11-06 |
| 6.26 x 2.96 x 0.35 inches | 6.47 x 2.99 x 0.34 inches |
| 6.63 ounces | 6.81 ounces |
| Midnight blue and Raven black | Prism Dot black, Prism Dot grey and Prism Dot white |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.6 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 403 pixels per inch | 266 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 7.2 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 750G SM7225 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 570, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Adreno 619 GPU |
| 9.27 | 9.18 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 11.74 | 15.38 |
| Camera | |
| 48.00 MP + 20.00 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 |
| 1920 x 1080 (240 fps) (Full 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 |
| 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 | |
| 6000mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy A42 is just a bit better than Samsung Galaxy M21, with an 87 score against 84.1. Both of these devices include the same Android 11 OS (Operating System), so you shouldn't notice any difference regarding that. Galaxy A42's construction is a little heavier but just a little bit thinner than Samsung Galaxy M21, and they were released with only a couple of months difference.
Samsung Galaxy M21 features a bit better hardware performance than Galaxy A42. Both of them have 4 GB of RAM memory and the same number of cores. The Samsung Galaxy M21 features a much better screen than Samsung Galaxy A42, because although it has a quite smaller display, it also counts with a lot better 1080 x 2340 resolution and a lot greater pixel density.
Galaxy A42 features a lot bigger memory capacity for games and applications than Galaxy M21, because it has 128 GB internal storage capacity and a slot for an external memory card that holds up to 1000 GB. Samsung Galaxy M21 features better battery duration than Samsung Galaxy A42, because it has a 20% greater battery capacity.
Samsung Galaxy M21 shoots a little bit better photos and videos than Samsung Galaxy A42, although it has a smaller camera aperture, they both have the same resolution back camera, the same 3840x2160 video quality and the same 30 fps video frame rates.
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