Compare phones
| Global Score | |
| 72.6 | 98.1 |
| Basic Information | |
| Samsung | |
| Android 10 | Android 11 |
| 2020-06-02 | 2021-01-29 |
| 6.45 x 2.98 x 0.35 inches | 6.50 x 2.98 x 0.35 inches |
| 7.13 ounces | 8.04 ounces |
| Arctic white and Glacier blue | Phantom black and Silver |
| Glass and Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 380.00 | $ 966.00 |
| Display / Screen | |
| 6.6 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 399 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 640 GPU | Adreno 660 GPU |
| 9.72 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 64.00 MP + 32.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.54 | 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, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4200mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.08 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| 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 |
Comparison review
The Samsung Galaxy S21 Ultra has a general score of 98.1, which is a lot better than the realme X3 SuperZoom's 72.6 overall score. Both phones we compare here work with Android OS, but the Samsung Galaxy S21 Ultra has the newer 11 version and realme X3 SuperZoom has Android 10 version. The Samsung Galaxy S21 Ultra is a somewhat heavier cellphone than the realme X3 SuperZoom, but both of them are 0.35inches thick.
Galaxy S21 Ultra and realme X3 SuperZoom have quite similar processors, and although the Galaxy S21 Ultra has a higher amount of RAM, they both have a Octa-Core CPU. The Galaxy S21 Ultra has a better looking screen than realme X3 SuperZoom, because it has a better 1440 x 3200px resolution, a little larger screen and more pixels per screen inch.
The Samsung Galaxy S21 Ultra counts with a slightly better camera than realme X3 SuperZoom, and although they both have a F1.8 camera aperture, the Samsung Galaxy S21 Ultra also has a much higher 7680x4320 video quality, a camera in the back with a way higher resolution and a much bigger sensor capturing much better quality photos and videos.
Galaxy S21 Ultra counts with as much storage capacity for applications and games as the realme X3 SuperZoom, both have equal 128 GB internal storage. Galaxy S21 Ultra has greater battery performance than realme X3 SuperZoom, because it has 5000mAh of battery capacity instead of 4200mAh.
The Galaxy S21 Ultra is a lot more expensive than realme X3 SuperZoom, but you can get a much better phone for that extra money.
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