Compare phones
| Global Score | |
| 72 | 98.1 |
| Basic Information | |
| Samsung | |
| Android 11 | Android 11 |
| 2021-04-28 | 2021-01-29 |
| 6.40 x 2.94 x 0.33 inches | 6.50 x 2.98 x 0.35 inches |
| 6.53 ounces | 8.04 ounces |
| Supersonic Black and Supersonic blue | Phantom black and Silver |
| -- | Aluminum and Glass (Corning Gorilla Glass Victus) |
| -- | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.5 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 405 pixels per inch | 516 pixels per inch |
| 600 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.6 | 9.8 |
| Performance | |
| MediaTek Dimensity 700 MT6833V chipset | Qualcomm Snapdragon 888 chipset |
| Cortex-A76, 64-bit, 7 nm (Octa-Core 2200 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| Mali-G57 GPU | Adreno 660 GPU |
| 9.18 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1 TB) external memory slot | No SD card slot |
| 15.42 | 10.1 |
| Camera | |
| 48.00 MP + 16.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 24.00mm focal length |
| -- | 0.75 inches (1/1.33") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.56 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 10.6 | 10.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.1 |
| GPS | GPS |
| -- | 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 |
Comparison review
The Galaxy S21 Ultra has an overall score of 98.1, which is a lot better than the realme 8 5G's score of 72. Galaxy S21 Ultra is an a bit thicker and somewhat heavier phone than the realme 8 5G. Both of these devices work with the same Android 11 OS (operating system), so both should offer very similar OS features.
The Galaxy S21 Ultra has a bit more powerful CPU than realme 8 5G, and although they both have the same number of cores, the Galaxy S21 Ultra also has more RAM memory. Galaxy S21 Ultra counts with a much better display than realme 8 5G, because it has a little larger screen, a higher pixel density, a better 1440 x 3200 resolution and way more brightness.
Galaxy S21 Ultra features a way better camera than realme 8 5G, and although they both have a F1.8 aperture, the Galaxy S21 Ultra also has a lot higher video quality and a camera with a much better 108 mega-pixels resolution. The realme 8 5G has a very superior storage capacity for applications and games than Samsung Galaxy S21 Ultra, and although they both have equal 128 GB internal storage, the realme 8 5G also has an external memory slot that admits a maximum of 1 TB.
Galaxy S21 Ultra's battery life is just as good as the battery performance in realme 8 5G.
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