| Global Score | |
| 85.5 | 79 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 4.4 |
| 2019-12-27 | 2013-03-14 |
| 6.24 x 2.90 x 0.31 inches | 5.38 x 2.75 x 0.31 inches |
| 6.07 ounces | 4.59 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black, Blue, Red and White |
| Plastic and Plastic | Polycarbonate |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | $ 135.00 |
| Display / Screen | |
| 6.5 inches | 5 inches |
| 2400 x 1080 pixels | 1080 x 1920 pixels (Full HD) |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 441 pixels per inch |
| No touch screen | Capacitive, Multi-touch |
| 8.1 | 9.1 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 600 APQ8064T chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Krait 300 (Quad-Core 1900 MHz) processor |
| 4 GB RAM | 2 GB (800 MHz) RAM |
| Mali-G72 MP3 GPU | Adreno 320 (400 MHz) GPU |
| 9.27 | 9 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSD, microSDHC, microSDXC (up to 64 GB) external memory slot |
| 14.14 | 9.46 |
| Camera | |
| 48.00 MP + 32.00 MP | 13.00 MP + 2.00 MP |
| f/2.00 aperture | f/2.20 aperture |
| 26.00mm focal length | 31.00mm focal length |
| 0.5 inches (1/2") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 11.55 | 9.02 |
| 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, UMTS, EDGE, GPRS and GSM |
| Nano SIM, Dual SIM | Micro SIM |
| 6.7 | 7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 2600mAh Li-Ion Battery |
| Non-Removable Battery | Removable Battery |
| -- | Wireless Charging |
| -- | 17 hours talk time |
| 5.92 | 4.56 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | -- |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Galaxy A51 is a little bit better than the Samsung Galaxy S4, with a overall score of 85.5 against 79. Both phones in our current comparison work with Android OS (Operating System), but Galaxy A51 has 11 version and Samsung Galaxy S4 has Android 4.4 version, so it gives a couple nice extra features and better performance. Galaxy A51's design has the same thickness than the Samsung Galaxy S4, but it's heavier.
The Samsung Galaxy A51 features a bit better processing unit than Samsung Galaxy S4, because although it has doesn't have an extra graphics processor, it also counts with 2 GB more RAM memory and a greater number of cores. The Samsung Galaxy S4 has a sharper screen than Samsung Galaxy A51, because although it has a little worse 1920 x 1080 resolution and a really smaller screen, it also counts with a little bit more pixels per inch of screen.
The Galaxy A51 counts with a way bigger storage to install applications and games than Samsung Galaxy S4, because it has 128 GB internal storage capacity and a SD extension slot that allows a maximum of 512 GB. Samsung Galaxy A51 shoots a lot better photos and videos than Samsung Galaxy S4, because it has a way higher 48 megapixels resolution camera, a much larger sensor shooting lot higher quality photographs, a lot better 3840x2160 (4K) video quality and a bigger aperture.
The Galaxy A51 has a very superior battery performance than Galaxy S4, because it has a 4000mAh battery size against 2600mAh.
Although Galaxy A51 is a better device, it costs a lot more than Samsung Galaxy S4, and it doesn't have such a good relation between it's price and quality as Samsung Galaxy S4. If you want to save some dollars, you can get Samsung Galaxy S4, and give up a few features and specs, but you'll get the most out of your money.
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