Compare phones
| Global Score | |
| 69.7 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 4.3, 4.1.2, 4.1.1, 4.0.4 | Android 10 |
| 2012-05-03 | 2020-06-29 |
| 5.38 x 2.78 x 0.34 inches | 6.61 x 3.02 x 0.32 inches |
| 4.69 ounces | 6.81 ounces |
| Black, Blue, Brown, Gray, Pink, Red and White | Black |
| Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 265.00 | $ 194.00 |
| Display / Screen | |
| 4.8 inches | 6.5 inches |
| 720 x 1280 pixels (HD) | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 306 pixels per inch | 270 pixels per inch |
| 300 cd/m2 brightness | -- |
| Capacitive, Multi-touch | No touch screen |
| 8.6 | 7.3 |
| Performance | |
| Samsung Exynos 4 (4412) chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A9 (Quad-Core 1400 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 1 GB RAM | 3 GB RAM |
| ARM Mali-400 MP4 (Quad-Core 266 MHz) GPU | PowerVR GE8320 GPU |
| 9 | 9.27 |
| Storage | |
| 16 GB internal memory | 32 GB internal memory |
| microSD, microSDHC, microSDXC (up to 64 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 6.16 | 9.84 |
| Camera | |
| 8.00 MP + 1.90 MP | 16.00 MP + 13.00 MP |
| f/2.60 aperture | f/1.80 aperture |
| 0.33 inches (1/3") sensor | 0.33 inches (1/3.06") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.47 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM |
| 4.6 | 6.7 |
| Battery Life | |
| 2100mAh Li-Ion Battery | 4000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 830 hours standby time 22.5 hours talk time | -- |
| 4 | 5.92 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Samsung Galaxy A21 has an overall score of 76.1, which is just a bit better than Galaxy S III's 69.7 global score. Both of these devices work with Android OS, but Samsung Galaxy A21 has newer 10 version and Galaxy S III has Android 4.3. The Samsung Galaxy A21 construction is extremely newer and just a little bit thinner than the Galaxy S III's, although it's extremely heavier.
Samsung Galaxy A21 counts with just a little better processing power than Samsung Galaxy S III, because although it has doesn't have a graphics co-processor, it also counts with more cpu cores and a higher amount of RAM memory. Galaxy S III has a brighter screen than Galaxy A21, because although it has a way smaller display and a bit worse 1280 x 720px resolution, it also counts with a little bit greater pixels density.
The Samsung Galaxy A21 has much more memory capacity for applications and games than Samsung Galaxy S III, because it has 32 GB internal memory capacity and a slot for external memory cards that supports a maximum of 512 GB. Samsung Galaxy A21 counts with a very superior battery duration than Samsung Galaxy S III, because it has a 4000mAh battery capacity.
Galaxy A21 shoots much clearer photos and videos than Samsung Galaxy S III, because although it has a smaller back-facing camera sensor capturing worse quality photographs, and they both have the same video frame rates and the same video definition, the Galaxy A21 also counts with a lot larger camera aperture to take better low-light images and video and a much more mega pixels camera in the back.
The Galaxy A21 not only is the best phones in our comparison, but it's also very cheap compared to the other phones, making buying this phone an easy decision.
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