| Global Score | |
| 72.4 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 4.4.4 | Android 11, 10 |
| 2014-10-30 | 2019-12-27 |
| 5.48 x 2.74 x 0.26 inches | 6.24 x 2.90 x 0.31 inches |
| 4.34 ounces | 6.07 ounces |
| Black, Blue, Gold, Gray, Pink and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Aluminium | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 239.00 | $ 282.00 |
| Display / Screen | |
| 5 inches | 6.5 inches |
| 720 x 1280 pixels (HD) | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 294 pixels per inch | 405 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 8.3 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 410 8916 chipset | Samsung Exynos 9611 chipset |
| 64-bit ARM Cortex-A53 (Quad-Core 1200 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 2 GB (533 MHz) RAM | 4 GB RAM |
| Adreno 306 (450 MHz) GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 16 GB internal memory | 128 GB internal memory |
| microSD, microSDHC, microSDXC (up to 64 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 6.16 | 14.14 |
| Camera | |
| 13.00 MP + 5.00 MP | 48.00 MP + 32.00 MP |
| -- | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 7.92 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, UMTS, 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 | |
| 2300mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 15 hours talk time | -- |
| 4.24 | 5.92 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
The Samsung Galaxy A51 has a score of 85.5, which is much better than the Galaxy A5's 72.4 overall score. Although Samsung Galaxy A51 is much newer than the Galaxy A5, it is a lot heavier and somewhat thicker. These phones include Android operating system, but the Samsung Galaxy A51 has an older 11 version and Galaxy A5 has Android 4.4.4.
The Galaxy A51 has a bit better hardware performance than Galaxy A5, because although it has a 32-bit CPU against 64-bits and doesn't have an extra graphics processing unit, it also counts with 2 GB more RAM memory and 4 more processing cores. The Galaxy A5 features a bit sharper screen than Samsung Galaxy A51, although it has a lot worse resolution of 1280 x 720 pixels, a much worse pixel number per display inch and a really smaller display.
Galaxy A51 has a greater camera than Galaxy A5, because it has a lot higher (4K) video resolution and a way better resolution back facing camera. Galaxy A51 features much more storage to install applications and games than Galaxy A5, because it has 128 GB internal memory and a SD memory slot that supports a maximum of 512 GB.
Galaxy A51 features a superior battery performance than Samsung Galaxy A5, because it has a 74% bigger battery capacity.
Galaxy A51 costs more than Galaxy A5, but you can get a better phone for that few extra dollars.
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