Compare phones
| Global Score | |
| 98.1 | 77 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | Android 11, 10, 9.0 Pie |
| 2021-01-29 | 2019-10-05 |
| 6.50 x 2.98 x 0.35 inches | 6.43 x 3.05 x 0.31 inches |
| 8.04 ounces | 6.46 ounces |
| Phantom black and Silver | Black, Blue, Green and Red |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Plastic |
| Scratch-Resistant Glass | -- |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.5 inches |
| 3200 x 1440 pixels | 1560 x 720 pixels |
| Dynamic AMOLED | TFT |
| 516 pixels per inch | 264 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.8 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 450 SDM450 (14 nm) chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Cortex-A53 (Octa-Core 1800 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Adreno 506 GPU |
| 9.72 | 8.91 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 108.00 MP + 40.00 MP | 13.00 MP + 8.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | 27.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.25 inches (1/4") sensor |
| 7680 x 4320 (24 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 13.75 | 8.91 |
| 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) and HSDPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.6 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy S21 Ultra has a general score of 98.1, which is much better than Galaxy A20s's overall score of 77. The Galaxy S21 Ultra is a newer phone than the Galaxy A20s, although it is somewhat thicker and somewhat heavier. Both of these phones work with the same Android 11 OS. The Galaxy S21 Ultra features a lot better looking screen than Galaxy A20s, because it has a much greater pixels count per display inch, a bit larger screen and a way better 1440 x 3200px resolution.
The Galaxy A20s counts with a bigger memory capacity to store more games and applications than Galaxy S21 Ultra, because although it has less internal memory capacity, it also counts with a SD extension slot that admits up to 512 GB. The Galaxy S21 Ultra counts with a little better processing power than Samsung Galaxy A20s, and although they both have 8 CPU cores, the Galaxy S21 Ultra also has more RAM.
Galaxy S21 Ultra captures much clearer videos and photos than Samsung Galaxy A20s, and although they both have a same size aperture, the Galaxy S21 Ultra also has a much better 7680x4320 video definition, a way more mega-pixels camera in the back and a lot larger back camera sensor providing a lot better image quality.
Galaxy S21 Ultra has improved battery performance than Samsung Galaxy A20s, because it has a 5000mAh battery capacity.
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