Compare phones
| Global Score | |
| 76.1 | 79.2 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | -- |
| 2020-06-29 | 2018-01-06 |
| 6.61 x 3.02 x 0.32 inches | 5.87 x 2.78 x 0.33 inches |
| 6.81 ounces | 6.07 ounces |
| Black | Black, Blue, Gold and Orchid grey |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass 5) |
| -- | Scratch-Resistant Glass |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 5.6 inches |
| 1600 x 720 pixels | 2220 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 270 pixels per inch | 441 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8.3 |
| Performance | |
| Mediatek Helio P35 chipset | Samsung Exynos 5 Octa 7885 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| PowerVR GE8320 GPU | Mali-G71 GPU |
| 9.27 | 9.18 |
| 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 | |
| 16.00 MP + 13.00 MP | 16.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.70 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 |
| 9.35 | 9.24 |
| 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 | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 4.96 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy A8 (2018) is just a bit better than the Samsung Galaxy A21, getting a general score of 79.2 against 76.1. The Galaxy A8 (2018) construction is somewhat lighter than Samsung Galaxy A21, but it is just a little thicker and was released many years before. The Samsung Galaxy A8 (2018) counts with a sharper screen than Samsung Galaxy A21, because although it has a little bit smaller display, it also counts with a way higher resolution of 1080 x 2220px and way more pixels per screen inch.
The Galaxy A21 counts with a little better performance than Galaxy A8 (2018), although it has 1 GB lesser RAM, they both have the same number of cores. The Samsung Galaxy A8 (2018) counts with a slightly better storage capacity to store more games and applications than Galaxy A21, because although it has a SD extension slot that supports 256 GB smaller, it also counts with 64 GB internal memory capacity.
The Galaxy A21 counts with greater battery lifetime than Samsung Galaxy A8 (2018), because it has a 4000mAh battery capacity. Galaxy A21 features a little bit better camera than Samsung Galaxy A8 (2018), although it has a tinier camera aperture which is not nice for low light captures and video, they both have the same video frame rate, the same 1920x1080 (Full HD) video definition and a camera with a 16 megapixels.
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