| Global Score | |
| 79 | 91.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 4.4 | Android 11 |
| 2013-03-14 | 2021-01-29 |
| 5.38 x 2.75 x 0.31 inches | 5.97 x 2.80 x 0.31 inches |
| 4.59 ounces | 6.03 ounces |
| Black, Blue, Red and White | Gray, Phantom pink, Violet and White |
| Polycarbonate | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 135.00 | $ 722.00 |
| Display / Screen | |
| 5 inches | 6.2 inches |
| 1080 x 1920 pixels (Full HD) | 2400 x 1080 pixels |
| Super AMOLED | Dynamic AMOLED |
| 441 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 600 APQ8064T chipset | Qualcomm Snapdragon 888 chipset |
| Krait 300 (Quad-Core 1900 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 2 GB (800 MHz) RAM | 8 GB RAM |
| Adreno 320 (400 MHz) GPU | Adreno 660 GPU |
| 9 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSD, microSDHC, microSDXC (up to 64 GB) external memory slot | No SD card slot |
| 9.46 | 10.1 |
| Camera | |
| 13.00 MP + 2.00 MP | 12.00 MP + 10.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| 31.00mm focal length | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 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 |
| 9.02 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM |
| 7 | 10.7 |
| Battery Life | |
| 2600mAh Li-Ion Battery | 4000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 17 hours talk time | -- |
| 4.56 | 5.92 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Galaxy S21 has a global score of 91.8, which is much better than Samsung Galaxy S4's score of 79. Both of these phones have Android OS, but the Galaxy S21 has a more recent 11 version while Samsung Galaxy S4 has Android 4.4 version, providing the user some extra features and performance improvements. The Galaxy S21 construction has the same thickness than Samsung Galaxy S4, but it's noticeably heavier.
Samsung Galaxy S21 counts with just a little better processing power than Galaxy S4, because although it has doesn't have an additional graphics processing unit, it also counts with 6 GB more RAM memory and a greater number of cores (and faster). Samsung Galaxy S21 has a slightly better screen than Samsung Galaxy S4, because although it has a little bit lower screen density, it also counts with a bigger screen and a little higher 1080 x 2400 resolution.
Galaxy S21 has a bit more memory capacity to store more games and applications than Galaxy S4, because although it has no external memory slot, it also counts with 128 GB internal memory capacity. The Samsung Galaxy S21 counts with a much better camera than Galaxy S4, because although it has a lower 12 MP resolution back-facing camera, it also counts with a lot bigger back-facing camera sensor taking much better quality photos, a bigger camera aperture and a lot higher 7680x4320 video definition.
Galaxy S21 features a way better battery duration than Galaxy S4, because it has a 4000mAh battery size.
Although Samsung Galaxy S21 is a better device, it is a lot more expensive than Galaxy S4, and it doesn't have such a good price and quality relation as Galaxy S4. If you prefer to save some dollars, you can buy Galaxy S4, giving up a few features and specs, but you will get the most out of your budget.
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