Compare phones
| Global Score | |
| 85.5 | 82.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 9.0 Pie, 8.0 Oreo |
| 2019-12-27 | 2018-08-27 |
| 6.24 x 2.90 x 0.31 inches | 6.39 x 3.03 x 0.30 inches |
| 6.07 ounces | 6.74 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black and White |
| Plastic and Plastic | Glass and Metal |
| Scratch-Resistant Glass | -- |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.3 inches |
| 2400 x 1080 pixels | 2220 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 392 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 512 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 400 GB) external memory slot |
| 14.14 | 11.34 |
| Camera | |
| 48.00 MP + 32.00 MP | 16.00 MP + 24.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.36 inches (1/2.8") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 11.55 | 10.01 |
| 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, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3700mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.68 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy A51 is just a bit better than the Galaxy A8 Star, getting a score of 85.5 against 82.1. Galaxy A51's construction is newer and a bit lighter, but also a little thicker than Galaxy A8 Star. Both of these phones use Android OS, but the Galaxy A51 has older 11 version and Galaxy A8 Star has Android 9.0 Pie.
Samsung Galaxy A51 counts with just a bit better looking display than Samsung Galaxy A8 Star, because it has a just a little greater count of pixels in each inch of display, a slightly higher resolution of 1080 x 2400 and a little larger display. Samsung Galaxy A8 Star's processing unit is very similar to the Samsung Galaxy A51 one, and although the Samsung Galaxy A8 Star has a higher amount of RAM, they both have the same number of cores.
The Galaxy A51 has a better camera than Galaxy A8 Star, because although it has a smaller camera aperture which is not so good for capturing photos and videos in low-light situations, and they both have the same video frame rate and the same 3840x2160 video resolution, the Galaxy A51 also counts with a much larger back-facing camera sensor providing a way better image quality and a camera with a lot better 48 mega-pixels resolution.
The Samsung Galaxy A51 counts with a much bigger memory for applications, games, photos and videos than Galaxy A8 Star, because it has a slot for an SD memory card that supports up to 512 GB and 128 GB internal memory. Samsung Galaxy A51 counts with just a little bit longer battery performance than Samsung Galaxy A8 Star, because it has a 4000mAh battery size against 3700mAh.
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