Compare phones
| Global Score | |
| 82.4 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.1 Oreo | Android 10 |
| 2019-03-07 | 2020-06-19 |
| 6.26 x 2.96 x 0.33 inches | 6.44 x 2.96 x 0.35 inches |
| 6.14 ounces | 6.77 ounces |
| Black and Blue | Black, Blue, Red and White |
| Plastic | -- |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2280 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | TFT |
| 394 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8 | 7.2 |
| Performance | |
| Samsung Exynos 7 Octa 7904 chipset | Samsung Exynos 850 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Mali-G71 MP2 GPU | Mali-G76 GPU |
| 9 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 9.84 |
| Camera | |
| 13.00 MP + 16.00 MP | 48.00 MP + 13.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.32 inches (1/3.1") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.13 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 5000mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy M30 is a bit better than Galaxy A21s, having an 82.4 score against 77.7. Both phones in our current comparison have Android OS, but the Galaxy M30 has a newer 9.0 Pie version while Galaxy A21s has Android 10. Galaxy M30's body is just a little bit thinner and a bit lighter than the Galaxy A21s, despite of the fact that it was released only 16 months before.
Samsung Galaxy A21s counts with a bit more powerful processing unit than Galaxy M30, although it has lesser RAM, they both have a Octa-Core processor. The Samsung Galaxy M30 counts with a better looking screen than Samsung Galaxy A21s, because although it has a quite smaller screen, it also counts with a greater pixel density and a lot better 1080 x 2280 resolution.
Galaxy M30 counts with a very superior storage capacity to store more apps and games than Galaxy A21s, and although they both have an external memory card slot that holds a maximum of 512 GB, the Galaxy M30 also has 128 GB internal storage. The Galaxy A21s's battery life is very similar to Samsung Galaxy M30's battery performance.
Samsung Galaxy A21s has a better camera than Galaxy M30, because although it has a smaller aperture, and they both have the same (Full HD) video quality and the same 30 fps video frame rates, the Samsung Galaxy A21s also counts with a much bigger sensor capturing much higher quality videos and photos and a camera in the back with lot more MP.
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