| Global Score | |
| 77.7 | 77.3 |
| Basic Information | |
| Samsung | Sony |
| Android 10 | Android 4.4.4 |
| 2020-06-19 | 2014-09-03 |
| 6.44 x 2.96 x 0.35 inches | 5.85 x 2.89 x 0.35 inches |
| 6.77 ounces | 6.02 ounces |
| Black, Blue, Red and White | Black and White |
| -- | Scratch-Resistant Glass |
| -- | $ 170.00 |
| Display / Screen | |
| 6.5 inches | 5.2 inches |
| 1600 x 720 pixels | 1080 x 1920 pixels (Full HD) |
| TFT | IPS LCD |
| 270 pixels per inch | 424 pixels per inch |
| -- | 592 cd/m2 brightness |
| No touch screen | Capacitive, Multi-touch |
| 7.2 | 9.6 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 801 8974-AC chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Krait 400 (Quad-Core 2500 MHz) processor |
| 3 GB RAM | 3 GB (933 MHz) RAM |
| Mali-G76 GPU | Adreno 330 (450 MHz) GPU |
| 9.09 | 9.45 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSD, microSDHC, microSDXC (up to 128 GB) external memory slot |
| 9.84 | 8.12 |
| Camera | |
| 48.00 MP + 13.00 MP | 20.70 MP + 2.20 MP |
| f/2.00 aperture | f/2.00 aperture |
| 26.00mm focal length | 25.00mm focal length |
| 0.5 inches (1/2") sensor | 0.43 inches (1/2.3") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 10.78 | 10.34 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3200mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| -- | 920 hours standby time 21 hours talk time |
| 6.8 | 5.2 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | -- |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Galaxy A21s has an overall score of 77.7, which is a bit better than Xperia Z3's general score of 77.3. These phones come with Android operating system, but the Galaxy A21s has 10 version while Xperia Z3 has Android 4.4.4 version. Galaxy A21s is a heavier device than Xperia Z3, but both have the same thickness.
The Xperia Z3 features a bit faster processor than Samsung Galaxy A21s, because although it has lesser cpu cores , and they both have 3 GB of RAM memory, the Xperia Z3 also counts with a graphics processor. The Sony Xperia Z3 has an incredibly better looking screen than Samsung Galaxy A21s, because although it has a lot smaller display, it also counts with a lot better screen pixel density and a better resolution of 1920 x 1080px.
Samsung Galaxy A21s has just a bit better camera than Xperia Z3, and although they both have the same 1920x1080 (Full HD) video quality, the same aperture and the same 30 fps video frame rates, the Samsung Galaxy A21s also has a larger sensor providing a higher image quality and a much more MP back camera.
The Galaxy A21s has a way bigger memory capacity for applications, games, photos and videos than Xperia Z3, and although they both have equal internal memory, the Galaxy A21s also has a SD memory slot that admits a maximum of 512 GB. Galaxy A21s has a much better battery performance than Xperia Z3, because it has 5000mAh of battery capacity against 3200mAh.
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