| Global Score | |
| 91.8 | 77.3 |
| Basic Information | |
| Samsung | Sony |
| Android 11 | Android 4.4.4 |
| 2021-01-29 | 2014-09-03 |
| 5.97 x 2.80 x 0.31 inches | 5.85 x 2.89 x 0.35 inches |
| 6.03 ounces | 6.02 ounces |
| Gray, Phantom pink, Violet and White | Black and White |
| Aluminum and Plastic | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | $ 170.00 |
| Display / Screen | |
| 6.2 inches | 5.2 inches |
| 2400 x 1080 pixels | 1080 x 1920 pixels (Full HD) |
| Dynamic AMOLED | IPS LCD |
| 424 pixels per inch | 424 pixels per inch |
| 1300 cd/m2 brightness | 592 cd/m2 brightness |
| No touch screen | Capacitive, Multi-touch |
| 9.2 | 9.6 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 801 8974-AC chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Krait 400 (Quad-Core 2500 MHz) processor |
| 8 GB RAM | 3 GB (933 MHz) RAM |
| Adreno 660 GPU | Adreno 330 (450 MHz) GPU |
| 9.63 | 9.45 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSD, microSDHC, microSDXC (up to 128 GB) external memory slot |
| 10.1 | 8.12 |
| Camera | |
| 12.00 MP + 10.00 MP | 20.70 MP + 2.20 MP |
| f/1.80 aperture | f/2.00 aperture |
| 26.00mm focal length | 25.00mm focal length |
| 0.57 inches (1/1.76") sensor | 0.43 inches (1/2.3") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 10.78 | 10.34 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM |
| Nano SIM | Nano SIM |
| 10.7 | 7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3200mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| -- | 920 hours standby time 21 hours talk time |
| 5.92 | 5.2 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | -- |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
The Galaxy S21 has a general score of 91.8, which is better than Xperia Z3's general score of 77.3. The Galaxy S21 design is newer and somewhat thinner, but also just a bit heavier than the Xperia Z3. These phones use Android operating system, but the Galaxy S21 has the older 11 version and Xperia Z3 has Android 4.4.4 version.
The Sony Xperia Z3 counts with a bit more vivid display than Galaxy S21, although it has much darker display, a quite lower 1920 x 1080px resolution and a little bit smaller display, they both have a greater amount of pixels per inch in the display. Samsung Galaxy S21 features just a little better hardware performance than Xperia Z3, because although it has doesn't have a GPU, it also counts with a larger number of cores and 5 GB more RAM memory.
Samsung Galaxy S21 counts with a bit better camera than Xperia Z3, because although it has a back facing camera with a way lower 12 megapixels resolution, it also counts with a way better video quality, a bigger diafragm aperture for better low light captures and video and a way larger camera sensor providing a much better image quality.
Galaxy S21 counts with a very superior storage for applications and games than Xperia Z3, because although it has no SD memory slot, it also counts with 128 GB internal storage. The Samsung Galaxy S21 counts with improved battery lifetime than Sony Xperia Z3, because it has a 25 percent bigger battery size.
Although Samsung Galaxy S21 is a better device, it costs a lot more than Sony Xperia Z3, and it doesn't have such a good relation between it's price and quality as the Sony Xperia Z3. If you want to save a few dollars, you can buy the Sony Xperia Z3, letting go a few specs and features, but you will get the most out of your savings.
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