Compare phones
| Global Score | |
| 77.7 | 82.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 9.0 Pie, 8.0 Oreo |
| 2020-06-19 | 2018-08-27 |
| 6.44 x 2.96 x 0.35 inches | 6.39 x 3.03 x 0.30 inches |
| 6.77 ounces | 6.74 ounces |
| Black, Blue, Red and White | Black and White |
| -- | Glass and Metal |
| Display / Screen | |
| 6.5 inches | 6.3 inches |
| 1600 x 720 pixels | 2220 x 1080 pixels |
| TFT | Super AMOLED |
| 270 pixels per inch | 392 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G76 GPU | Adreno 512 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 400 GB) external memory slot |
| 9.84 | 11.34 |
| Camera | |
| 48.00 MP + 13.00 MP | 16.00 MP + 24.00 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 | 3840 x 2160 (30 fps) (4K) video resolution |
| 10.78 | 10.01 |
| 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+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3700mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.68 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy A8 Star has a general score of 82.1, which is a bit better than Galaxy A21s's general score of 77.7. The Galaxy A8 Star is an older phone than Galaxy A21s, but it is somewhat thinner and just a bit lighter anyway. Both of these phones work with Android operating system, but Galaxy A8 Star has a more recent 9.0 Pie version and Galaxy A21s has Android 10 version, giving you some extra features.
Samsung Galaxy A8 Star features a brighter display than Galaxy A21s, because although it has a bit smaller display, it also counts with a greater number of pixels per screen inch and a lot higher 1080 x 2220 resolution. Samsung Galaxy A8 Star counts with a bit better processing power than Samsung Galaxy A21s, and although they both have a Octa-Core processor, the Samsung Galaxy A8 Star also has a larger amount of RAM.
The Samsung Galaxy A8 Star features a greater storage capacity for applications and games than Galaxy A21s, because although it has a SD extension slot that holds up to 400 GB against 512 GB, it also counts with more internal memory. The Galaxy A21s captures clearer photos and videos than Galaxy A8 Star, because although it has a smaller aperture, and they both have the same 30 frames per second video frame rate and the same 1920x1080 video quality, the Galaxy A21s also counts with a way more MP back camera and a lot larger back-facing camera sensor taking more light and vivid colors.
The Samsung Galaxy A21s counts with better battery duration than Galaxy A8 Star, because it has 5000mAh of battery capacity.
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