Compare phones
| Global Score | |
| 77.7 | 76.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 10, 8.0 Oreo |
| 2020-06-19 | 2018-06-28 |
| 6.44 x 2.96 x 0.35 inches | 6.27 x 2.98 x 0.32 inches |
| 6.77 ounces | 6.24 ounces |
| Black, Blue, Red and White | Black, Blue, Gold and Pink |
| -- | Plastic |
| Display / Screen | |
| 6.5 inches | 6 inches |
| 1600 x 720 pixels | 1480 x 720 pixels |
| TFT | Super AMOLED |
| 270 pixels per inch | 274 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 7.2 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 450 SDM450 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Mali-G76 GPU | Adreno 506 GPU |
| 9.09 | 8.91 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 9.84 | 10.78 |
| Camera | |
| 48.00 MP + 13.00 MP | 16.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.36 inches (1/2.8") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.78 | 9.46 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.44 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy A21s is a little bit better than the Samsung Galaxy J8, having a overall score of 77.7 against 76.7. Both of these phones include the same Android 10 operating system. The Galaxy A21s is a newer device than the Samsung Galaxy J8, but it's just a little heavier and a bit thicker. The Galaxy A21s has a bit better performance than Galaxy J8, although it has 1 GB lesser RAM, they both have a Octa-Core processing unit.
Samsung Galaxy J8 features a screen that is very similar to the screen in Galaxy A21s, because although the Samsung Galaxy J8 has a little bit lower resolution of 720 x 1480 and a little smaller display, it also counts with a little higher screen pixels density. The Samsung Galaxy J8 features a little bit better memory to store more games and applications than Samsung Galaxy A21s, because although it has a slot for external memory cards that holds up to 256 GB against 512 GB, it also counts with more internal storage capacity.
Galaxy A21s has a superior battery performance than Samsung Galaxy J8, because it has a 43 percent greater battery size. The Galaxy A21s counts with a better camera than Samsung Galaxy J8, because although it has a tinier camera aperture which is not nice for capturing photos in poorly lited environments, and they both have the same video quality and the same 30 frames per second video frame rate, the Galaxy A21s also counts with a way bigger back-facing camera sensor capturing much better quality photos and a back-facing camera with way more megapixels.
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