Compare phones
| Global Score | |
| 82.1 | 90.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 11, 10 |
| 2018-08-27 | 2020-04-29 |
| 6.39 x 3.03 x 0.30 inches | 6.26 x 2.90 x 0.34 inches |
| 6.74 ounces | 6.60 ounces |
| Black and White | Prism cube black |
| Glass and Metal | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 339.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2220 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 392 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Samsung Exynos 980 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 512 GPU | Mali-G76 MP5 GPU |
| 9.27 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 11.34 | 15.38 |
| Camera | |
| 16.00 MP + 24.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 10.01 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 3700mAh Li - Ion Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy A51 5G is much better than Galaxy A8 Star, having a 90.8 score against 82.1. Both phones in this comparison work with Android OS, but the Galaxy A51 5G has an older 11 version while Galaxy A8 Star has Android 9.0 Pie. Although the Galaxy A51 5G is thicker than the Galaxy A8 Star, it's just a little bit lighter and also newer.
Galaxy A51 5G's processing unit is very similar to the processor in Galaxy A8 Star, both have 8 cpu cores and the same RAM memory amount. Samsung Galaxy A51 5G has a little sharper screen than Samsung Galaxy A8 Star, because it has a just a little greater pixels density, a slightly better resolution of 1080 x 2400 and a little bit bigger display.
The Samsung Galaxy A51 5G has a much bigger memory capacity for games and applications than Samsung Galaxy A8 Star, because it has an external memory card slot that supports up to 1000 GB and more internal memory capacity. The Galaxy A51 5G counts with better battery life than Samsung Galaxy A8 Star, because it has a 22 percent greater battery size.
Galaxy A51 5G counts with a better camera than Samsung Galaxy A8 Star, because although it has a smaller diafragm aperture which is not recommended for low light photography, and they both have the same video frame rates and the same video quality, the Galaxy A51 5G also counts with a way bigger camera sensor taking more light and vivid colors and a camera in the back with much more megapixels.
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