Compare phones
| Global Score | |
| 79.2 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2018-01-06 | 2020-06-29 |
| 5.87 x 2.78 x 0.33 inches | 6.61 x 3.02 x 0.32 inches |
| 6.07 ounces | 6.81 ounces |
| Black, Blue, Gold and Orchid grey | Black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 5.6 inches | 6.5 inches |
| 2220 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 441 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.3 | 7.3 |
| Performance | |
| Samsung Exynos 5 Octa 7885 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Mali-G71 GPU | PowerVR GE8320 GPU |
| 9.18 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.78 | 9.84 |
| Camera | |
| 16.00 MP + 16.00 MP | 16.00 MP + 13.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| -- | 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 |
| 9.24 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy A8 (2018) has an overall score of 79.2, which is just a bit better than Samsung Galaxy A21's 76.1 score. The Samsung Galaxy A8 (2018) is a much older and just a little thicker phone than Samsung Galaxy A21, but Samsung could make it lighter anyway. The Samsung Galaxy A21 has a little better processing power than Samsung Galaxy A8 (2018), although it has less RAM memory, they both have 8 cores.
The Galaxy A8 (2018) features a much better looking screen than Galaxy A21, because although it has a quite smaller screen, it also counts with a way better quantity of pixels per inch in the screen and a much higher resolution of 1080 x 2220 pixels. Samsung Galaxy A21 counts with a bit better camera than Samsung Galaxy A8 (2018), although it has a tinier aperture, they both have the same video frame rates, a 16 megapixels resolution back camera and the same 1920x1080 video quality.
Samsung Galaxy A8 (2018) has just a bit bigger storage capacity to store more games and applications than Samsung Galaxy A21, because although it has a SD extension slot that supports up to 256 GB against 512 GB, it also counts with more internal memory capacity. The Samsung Galaxy A21 counts with greater battery life than Galaxy A8 (2018), because it has 4000mAh of battery capacity.
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