Compare phones
| Global Score | |
| 81.7 | 98.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11 |
| 2017-04-21 | 2021-01-29 |
| 5.86 x 2.68 x 0.31 inches | 6.50 x 2.98 x 0.35 inches |
| 5.47 ounces | 8.04 ounces |
| Arctic silver, Burgundy red, Coral blue, Maple gold, Midnight black, Orchid gray and Rose pink | Phantom black and Silver |
| Aluminum and Glass (Corning Gorilla Glass 5) | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 173.00 | $ 966.00 |
| Display / Screen | |
| 5.8 inches | 6.8 inches |
| 2960 x 1440 pixels | 3200 x 1440 pixels |
| Super AMOLED | Dynamic AMOLED |
| 568 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.9 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 835 MSM8998 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 280, 64-bit, 10 nm (Octa-Core 2350 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| Adreno 540 GPU | Adreno 660 GPU |
| 9.27 | 9.72 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 10.78 | 10.1 |
| Camera | |
| 12.00 MP + 8.00 MP | 108.00 MP + 40.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.79 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 4.96 | 6.8 |
| Other Features | |
| Bluetooth 5.0, EDR | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy S21 Ultra is a lot better than Galaxy S8, having a 98.1 score against 81.7. Galaxy S21 Ultra is a noticeably newer cellphone than Galaxy S8, although it's thicker and way heavier. Samsung Galaxy S21 Ultra features just a bit better hardware performance than Galaxy S8, and although they both have a Octa-Core processor, the Samsung Galaxy S21 Ultra also has a greater amount of RAM memory.
The Samsung Galaxy S21 Ultra has a sharper display than Galaxy S8, because although it has a just a bit lower display pixel density, it also counts with a bigger screen and a slightly higher 1440 x 3200px resolution. Galaxy S21 Ultra features a greater camera than Galaxy S8, because although it has a tinier diafragm aperture which is not good for shooting pictures in low light environments, it also counts with a much higher resolution back camera, a much bigger camera sensor shooting lot better quality photos and videos and a lot better 7680x4320 video resolution.
The Galaxy S8 features a little bit more memory for games and applications than Samsung Galaxy S21 Ultra, because although it has just 64 GB internal storage capacity, it also counts with a slot for external memory cards that supports a maximum of 256 GB. The Samsung Galaxy S21 Ultra has a way better battery duration than Galaxy S8, because it has a 5000mAh battery size against 3000mAh.
Although Galaxy S21 Ultra is a better device, it is a lot more expensive than Galaxy S8, and it doesn't have such a good quality/price relation as the Galaxy S8. So if you need that extra specs, you can buy the Galaxy S21 Ultra, else you can save a couple dollars and get the Galaxy S8, giving up a couple specifications.
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