Compare phones
| Global Score | |
| 73.7 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 10 |
| 2018-05-22 | 2020-06-29 |
| 5.88 x 2.76 x 0.32 inches | 6.61 x 3.02 x 0.32 inches |
| 5.43 ounces | 6.81 ounces |
| 16 777 216 | Black |
| Plastic | Plastic and Plastic |
| -- | $ 194.00 |
| Display / Screen | |
| 5.6 inches | 6.5 inches |
| 1480 x 720 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 294 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 7.3 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Mali-T830 MP1 GPU | PowerVR GE8320 GPU |
| 8.73 | 9.27 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.88 | 9.84 |
| Camera | |
| 13.00 MP + 8.00 MP | 16.00 MP + 13.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 27.00mm focal length | -- |
| 0.33 inches (1/3.06") sensor | 0.33 inches (1/3.06") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.02 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 3000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy A21 has a global score of 76.1, which is a bit better than Galaxy J6's global score of 73.7. Galaxy A21 is a extremely heavier device than the Galaxy J6, but both of them are equally thin. Both phones we compare here use Android OS (operating system), but Galaxy A21 has the previous 10 version while Galaxy J6 has Android 9.0 Pie.
Galaxy A21 features a bit superior processor than Samsung Galaxy J6. Both have the same number of cores and the same RAM memory amount. Samsung Galaxy A21 features a screen that's just as good as Galaxy J6's screen, because although the Samsung Galaxy A21 has a just a little worse screen density, it also counts with a larger display and a little bit higher 720 x 1600 pixels resolution.
The Galaxy A21 counts with just a bit better camera than Galaxy J6, and although they both have the same 30 fps video frame rates, a same size back camera sensor and the same video definition, the Galaxy A21 also has a more megapixels camera in the back and a bigger camera aperture. Galaxy A21 counts with a greater storage capacity to store more apps and games than Samsung Galaxy J6, and although they both have exactly the same internal storage, the Galaxy A21 also has an external SD slot that holds up to 512 GB.
Galaxy A21 has greater battery performance than Galaxy J6, because it has a 4000mAh battery size against 3000mAh.
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