Compare phones
| Global Score | |
| 98.1 | 82.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | Android 9.0 Pie, 8.0 Oreo |
| 2021-01-29 | 2018-08-27 |
| 6.50 x 2.98 x 0.35 inches | 6.39 x 3.03 x 0.30 inches |
| 8.04 ounces | 6.74 ounces |
| Phantom black and Silver | Black and White |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Glass and Metal |
| Scratch-Resistant Glass | -- |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.3 inches |
| 3200 x 1440 pixels | 2220 x 1080 pixels |
| Dynamic AMOLED | Super AMOLED |
| 516 pixels per inch | 392 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.8 | 8 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 12 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Adreno 512 GPU |
| 9.72 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 400 GB) external memory slot |
| 10.1 | 11.34 |
| Camera | |
| 108.00 MP + 40.00 MP | 16.00 MP + 24.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.36 inches (1/2.8") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 13.75 | 10.01 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3700mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 5.68 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy S21 Ultra is much better than Samsung Galaxy A8 Star, having a 98.1 score against 82.1. Galaxy S21 Ultra's design is incredibly newer, but somewhat thicker and somewhat heavier than the Samsung Galaxy A8 Star. Both of these phones work with Android operating system, but Galaxy S21 Ultra has the older 11 version while Samsung Galaxy A8 Star has Android 9.0 Pie version.
Galaxy S21 Ultra counts with a much sharper display than Samsung Galaxy A8 Star, because it has a bit bigger screen, a higher amount of pixels per screen inch and a higher 1440 x 3200 resolution. The Samsung Galaxy A8 Star features more memory to install applications and games or saving photos and videos than Samsung Galaxy S21 Ultra, because although it has only 64 GB internal storage capacity, it also counts with an external memory slot that supports up to 400 GB.
Galaxy S21 Ultra counts with a little faster CPU than Galaxy A8 Star, and although they both have 8 processing cores, the Galaxy S21 Ultra also has a higher amount of RAM memory. Galaxy S21 Ultra features a way better camera than Galaxy A8 Star, because although it has a tinier diafragm aperture, it also counts with a much higher 7680x4320 video definition, a back-facing camera with a much better resolution and a lot larger camera sensor which gives a lot better image and video quality.
Galaxy S21 Ultra has longer battery duration than Galaxy A8 Star, because it has 5000mAh of battery capacity against 3700mAh.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.