Compare phones
| Global Score | |
| 71.8 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2017-07-04 | 2019-12-27 |
| 5.76 x 2.81 x 0.31 inches | 6.24 x 2.90 x 0.31 inches |
| 5.64 ounces | 6.07 ounces |
| 16 777 216 | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Metal | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 282.00 |
| Display / Screen | |
| 5.2 inches | 6.5 inches |
| 1280 x 720 pixels (HD) | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 282 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Samsung Exynos 9611 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 2 GB RAM | 4 GB RAM |
| Mali-T830 MP2 GPU | Mali-G72 MP3 GPU |
| 8.73 | 9.27 |
| Storage | |
| 16 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 7.48 | 14.14 |
| Camera | |
| 13.00 MP + 13.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | 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 |
| 9.02 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 5.92 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy A51 is better than Galaxy J5 (2017), with a general score of 85.5 against 71.8. Samsung Galaxy A51 is a just a little bit heavier cellphone than the Galaxy J5 (2017), but both are equally thin. Samsung Galaxy A51 features a little better performance than Galaxy J5 (2017), and although they both have the same number of cores, the Samsung Galaxy A51 also has a higher amount of RAM.
The Galaxy A51 counts with a much better screen than Galaxy J5 (2017), because it has more pixels per inch in the display, a way better resolution of 1080 x 2400 pixels and a bigger screen. The Galaxy A51 shoots way better pictures and videos than Galaxy J5 (2017), because although it has a smaller aperture, it also counts with a much higher 3840x2160 video quality and a lot more mega-pixels camera in the back.
The Samsung Galaxy A51 features a lot bigger storage capacity for applications, games, photos and videos than Samsung Galaxy J5 (2017), because it has a slot for SD memory cards that allows a maximum of 512 GB and more internal memory capacity. The Galaxy A51 has greater battery performance than Galaxy J5 (2017), because it has a 4000mAh battery size.
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