Compare phones
| Global Score | |
| 98.1 | 74.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | Android 11, 10 |
| 2021-01-29 | 2021-01-04 |
| 6.50 x 2.98 x 0.35 inches | 6.46 x 2.99 x 0.36 inches |
| 8.04 ounces | 6.91 ounces |
| Phantom black and Silver | Black, Blue and White |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 966.00 | $ 170.00 |
| Display / Screen | |
| 6.8 inches | 6.5 inches |
| 3200 x 1440 pixels | 1600 x 720 pixels |
| Dynamic AMOLED | IPS LCD |
| 516 pixels per inch | 270 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 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 12 GB RAM | 3 GB RAM |
| Adreno 660 GPU | Adreno 506 GPU |
| 9.72 | 8.91 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 1 TB) external memory slot |
| 10.1 | 11.12 |
| Camera | |
| 108.00 MP + 40.00 MP | 13.00 MP + 5.00 MP |
| f/1.80 aperture | f/2.20 aperture |
| 24.00mm focal length | -- |
| 0.75 inches (1/1.33") 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 | 8.8 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.6 |
| 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 4.2 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | -- |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Samsung Galaxy S21 Ultra has a score of 98.1, which is a lot better than the Galaxy A02s's overall score of 74.5. Both phones we are comparing include the same Android 11 OS (operating system). The Samsung Galaxy S21 Ultra body is somewhat heavier but just a bit thinner than Galaxy A02s, and they were released only 1 months apart.
The Samsung Galaxy S21 Ultra counts with a much sharper screen than Galaxy A02s, because it has a lot greater screen density, a little bit larger display and a lot higher 1440 x 3200 resolution. The Galaxy S21 Ultra has a bit better processing power than Galaxy A02s, and although they both have 8 CPU cores, the Galaxy S21 Ultra also has a greater amount of RAM memory.
Samsung Galaxy S21 Ultra takes much clearer pictures and videos than Galaxy A02s, because it has a bigger aperture to take better photos and video in low light situations, a lot higher 7680x4320 video definition and a back camera with way more mega-pixels. Samsung Galaxy A02s counts with a better storage for games and applications than Galaxy S21 Ultra, because although it has just 32 GB internal storage, it also counts with an external SD slot that admits up to 1 TB.
Galaxy A02s and Galaxy S21 Ultra count with really similar battery durations.
Although Galaxy S21 Ultra is a better device, it is a lot more expensive than Samsung Galaxy A02s, and it doesn't have such a good relation between it's price and quality as the Samsung Galaxy A02s. So if you need that extra specs and features, you can buy Galaxy S21 Ultra, otherwise you can save some dollars and get the Samsung Galaxy A02s, resigning a couple specifications.
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