Compare phones
| Global Score | |
| 72.8 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 6.0 Marshmallow | Android 10 |
| 2016-10-01 | 2020-06-19 |
| 6.17 x 3.02 x 0.28 inches | 6.44 x 2.96 x 0.35 inches |
| 6.42 ounces | 6.77 ounces |
| Blue, Gold and Silver | Black, Blue, Red and White |
| Aluminum and Aluminum | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 5.7 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| Super AMOLED | TFT |
| 386 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8 | 7.2 |
| Performance | |
| Samsung Exynos 7 Octa 7420 chipset | Samsung Exynos 850 chipset |
| ARM Cortex-A57 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2100 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Yes GPU | Mali-G76 GPU |
| 9.09 | 9.09 |
| 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 | |
| 16.00 MP + 8.00 MP | 48.00 MP + 13.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 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 |
| Nano SIM | Nano SIM, Dual SIM |
| 3 | 6.7 |
| Battery Life | |
| 3300mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 6.8 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
Samsung Galaxy A21s is slightly better than the Galaxy A8 (2016), with a score of 77.7 against 72.8. The Samsung Galaxy A21s is a a lot newer phone than the Galaxy A8 (2016), but it is somewhat thicker and just a bit heavier. Both devices in this review work with Android OS, but the Samsung Galaxy A21s has the older 10 version and Galaxy A8 (2016) has Android 6.0 Marshmallow version.
Galaxy A8 (2016) counts with a better display than Galaxy A21s, because although it has a bit smaller display, it also counts with a greater pixel density and a better resolution of 1080 x 1920px. Galaxy A21s and Samsung Galaxy A8 (2016) both have very similar CPUs, both of them have 8 processing cores and a 3 GB RAM.
The Galaxy A21s counts with a bigger memory capacity to install games and applications than Galaxy A8 (2016), and although they both have exactly the same 32 GB internal memory, the Galaxy A21s also has a SD card slot that allows a maximum of 512 GB. The Galaxy A21s features a much better battery lifetime than Samsung Galaxy A8 (2016), because it has 5000mAh of battery capacity.
The Galaxy A21s has a superior camera than Galaxy A8 (2016), because although it has a smaller diafragm aperture which is not good for low light photography and video, and they both have the same 1920x1080 (Full HD) video resolution and the same video frame rates, the Galaxy A21s also counts with a camera with a much better 48 mega pixels resolution.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.