Compare phones
| Global Score | |
| 75.1 | 98.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 14 | Android 11 |
| -- | 2021-01-29 |
| -- | 6.50 x 2.98 x 0.35 inches |
| -- | 8.04 ounces |
| -- | Phantom black and Silver |
| Glass and Plastic | 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 |
| Super AMOLED | Dynamic AMOLED |
| 405 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.5 | 9.8 |
| Performance | |
| Exynos 1480 (5 nm) chipset | Qualcomm Snapdragon 888 chipset |
| processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 12 GB RAM |
| Yes GPU | Adreno 660 GPU |
| 6.12 | 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 | |
| 50.00 MP + 32.00 MP | 108.00 MP + 40.00 MP |
| -- | f/1.80 aperture |
| -- | 24.00mm focal length |
| -- | 0.75 inches (1/1.33") sensor |
| -- | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 8.47 | 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 | Nano SIM |
| 10.6 | 10.7 |
| Battery Life | |
| 5000mAh Nano SIM, eSIM Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 5.3 | 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
Galaxy S21 Ultra has an overall score of 98.1, which is way better than Galaxy A55 5G's 75.1 general score. Both phones in this review have Android OS (Operating System), but Galaxy S21 Ultra has older 11 version while Galaxy A55 5G has Android 14. The Galaxy S21 Ultra counts with a way better processing power than Galaxy A55 5G, and although they both have 8 processing cores, the Galaxy S21 Ultra also has a larger amount of RAM.
The Galaxy S21 Ultra features a much more vibrant display than Galaxy A55 5G, because it has a better resolution of 1440 x 3200 pixels, more pixels per inch of display and a quite larger screen. Samsung Galaxy A55 5G counts with much more memory capacity to store more apps and games than Galaxy S21 Ultra, and although they both have equal 128 GB internal storage capacity, the Samsung Galaxy A55 5G also has a slot for SD memory cards that supports up to 1 TB.
The Galaxy S21 Ultra counts with a greater camera than Samsung Galaxy A55 5G, because it has a lot more megapixels camera in the back. Galaxy S21 Ultra's battery life is just as good as the Galaxy A55 5G one.
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