| Global Score | |
| 77.3 | 77.7 |
| Basic Information | |
| Sony | Samsung |
| Android 4.4.4 | Android 10 |
| 2014-09-03 | 2020-06-19 |
| 5.85 x 2.89 x 0.35 inches | 6.44 x 2.96 x 0.35 inches |
| 6.02 ounces | 6.77 ounces |
| Black and White | Black, Blue, Red and White |
| Scratch-Resistant Glass | -- |
| $ 170.00 | -- |
| Display / Screen | |
| 5.2 inches | 6.5 inches |
| 1080 x 1920 pixels (Full HD) | 1600 x 720 pixels |
| IPS LCD | TFT |
| 424 pixels per inch | 270 pixels per inch |
| 592 cd/m2 brightness | -- |
| Capacitive, Multi-touch | No touch screen |
| 9.6 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 801 8974-AC chipset | Samsung Exynos 850 chipset |
| Krait 400 (Quad-Core 2500 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 3 GB (933 MHz) RAM | 3 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali-G76 GPU |
| 9.45 | 9.09 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSD, microSDHC, microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.12 | 9.84 |
| Camera | |
| 20.70 MP + 2.20 MP | 48.00 MP + 13.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| 25.00mm focal length | 26.00mm focal length |
| 0.43 inches (1/2.3") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 10.34 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 3200mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 920 hours standby time 21 hours talk time | -- |
| 5.2 | 6.8 |
| 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, Gyroscope and Proximity Sensor |
The Samsung Galaxy A21s is slightly better than the Xperia Z3, with a 77.7 score against 77.3. These devices come with Android OS, but Samsung Galaxy A21s has the older 10 version and Xperia Z3 has Android 4.4.4 version. Samsung Galaxy A21s is a somewhat heavier cellphone than Xperia Z3, but they have the same thickness.
The Xperia Z3 has a lot better looking display than Samsung Galaxy A21s, because although it has a lot smaller display, it also counts with a better 1920 x 1080 pixels resolution and a lot higher pixels density. The Sony Xperia Z3 features just a little better performance than Galaxy A21s, because although it has an inferior number of cores , and they both have the same RAM amount, the Sony Xperia Z3 also counts with an extra graphics processing unit.
Samsung Galaxy A21s features much more memory for games and applications than Sony Xperia Z3, and although they both have equal 32 GB internal storage capacity, the Samsung Galaxy A21s also has an external memory slot that supports a maximum of 512 GB. Galaxy A21s features a very superior battery performance than Sony Xperia Z3, because it has a 5000mAh battery size instead of 3200mAh.
Galaxy A21s has a little bit better camera than Sony Xperia Z3, and although they both have the same (Full HD) video definition, a same size aperture and the same video frame rate, the Galaxy A21s also has a larger back-facing camera sensor capturing more light and vivid colors and a back-facing camera with a much better 48 mega-pixels resolution.
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