Compare phones
| Global Score | |
| 74.5 | 91.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11 |
| 2021-01-04 | 2021-01-29 |
| 6.46 x 2.99 x 0.36 inches | 5.97 x 2.80 x 0.31 inches |
| 6.91 ounces | 6.03 ounces |
| Black, Blue and White | Gray, Phantom pink, Violet and White |
| Plastic and Plastic | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| $ 170.00 | $ 722.00 |
| Display / Screen | |
| 6.5 inches | 6.2 inches |
| 1600 x 720 pixels | 2400 x 1080 pixels |
| IPS LCD | Dynamic AMOLED |
| 270 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 9.2 |
| 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 | 8 GB RAM |
| Adreno 506 GPU | Adreno 660 GPU |
| 8.91 | 9.63 |
| 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 | 12.00 MP + 10.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| -- | 0.57 inches (1/1.76") 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 | 10.78 |
| 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 | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| 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 has a global score of 91.8, which is a lot better than Samsung Galaxy A02s's 74.5 general score. These phones use the same Android 11 OS (operating system), so you shouldn't see any differences regarding operating system features. The Galaxy S21 is a thinner and somewhat lighter phone than Samsung Galaxy A02s, even though they were released with only a few months difference.
Samsung Galaxy S21 counts with a much more vibrant screen than Galaxy A02s, because although it has a little bit smaller screen, it also counts with a way better resolution of 1080 x 2400 pixels and a much higher pixels density. Galaxy A02s has a quite bigger storage for games and applications than Samsung Galaxy S21, because although it has just 32 GB internal memory capacity, it also counts with a slot for an external memory card that holds a maximum of 1 TB.
The Galaxy S21 features a little bit better hardware performance than Samsung Galaxy A02s, and although they both have 8 processing cores, the Galaxy S21 also has a larger amount of RAM. The Galaxy S21 captures much better photographs and videos than Samsung Galaxy A02s, because although it has a lower resolution back facing camera, it also counts with a larger diafragm aperture for better low light images and video and a much higher 7680x4320 video quality.
Samsung Galaxy A02s features improved battery performance than Samsung Galaxy S21, because it has a 5000mAh battery capacity against 4000mAh.
Although Samsung Galaxy S21 is a better device, it costs a lot more money than the Samsung Galaxy A02s, and it doesn't have such a good quality/price relation as Samsung Galaxy A02s. So if you want that extra features and specs, you can buy Samsung Galaxy S21, but if you don't you can save some dollars and buy the Samsung Galaxy A02s, giving up a couple features and specs.
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