Compare phones
| Global Score | |
| 74.5 | 98.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11 |
| 2021-01-04 | 2021-01-29 |
| 6.46 x 2.99 x 0.36 inches | 6.50 x 2.98 x 0.35 inches |
| 6.91 ounces | 8.04 ounces |
| Black, Blue and White | Phantom black and Silver |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| -- | Scratch-Resistant Glass |
| $ 170.00 | $ 966.00 |
| Display / Screen | |
| 6.5 inches | 6.8 inches |
| 1600 x 720 pixels | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 270 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 450 SDM450 chipset | Qualcomm Snapdragon 888 chipset |
| Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 12 GB RAM |
| Adreno 506 GPU | Adreno 660 GPU |
| 8.91 | 9.72 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1 TB) external memory slot | No SD card slot |
| 11.12 | 10.1 |
| Camera | |
| 13.00 MP + 5.00 MP | 108.00 MP + 40.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| -- | 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 (960 fps) (HD) slow motion video |
| 8.8 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 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 |
| 6.6 | 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 4.2 | Bluetooth 5.1 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy S21 Ultra has a score of 98.1, which is a lot better than the Samsung Galaxy A02s's global score of 74.5. Although Galaxy S21 Ultra and the Samsung Galaxy A02s were released with only a couple months difference, Galaxy S21 Ultra's design is heavier but also just a bit thinner than the Samsung Galaxy A02s. These phones have the same Android 11 OS, so they should provide the user very similar OS features.
Galaxy S21 Ultra has a way better screen than Samsung Galaxy A02s, because it has a little bit larger display, a much higher pixel number per inch of screen and a much better resolution of 1440 x 3200px. Samsung Galaxy A02s has a bigger memory for applications, games, photos and videos than Samsung Galaxy S21 Ultra, because although it has 0 less internal storage, it also counts with a slot for SD memory cards that supports up to 1 TB.
The Galaxy S21 Ultra counts with a little bit better hardware performance than Samsung Galaxy A02s, and although they both have a Octa-Core CPU, the Galaxy S21 Ultra also has more RAM memory. The Samsung Galaxy S21 Ultra counts with a greater camera than Samsung Galaxy A02s, because it has a much better 7680x4320 video resolution, a larger camera aperture to capture better low light photography and videos and a back facing camera with way more megapixels.
Galaxy S21 Ultra's battery life is just as good as the battery duration in Samsung Galaxy A02s.
Although Galaxy S21 Ultra is a better device, it costs a lot more than the Galaxy A02s, and it doesn't have such a good price and quality relation as Galaxy A02s. So if you want that extra features and specs, you can buy the Galaxy S21 Ultra, but if you don't you can save some dollars and buy the Galaxy A02s, resigning some features and specs.
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