Compare phones
| Global Score | |
| 90.8 | 82.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 9.0 Pie, 8.0 Oreo |
| 2020-04-29 | 2018-08-27 |
| 6.26 x 2.90 x 0.34 inches | 6.39 x 3.03 x 0.30 inches |
| 6.60 ounces | 6.74 ounces |
| Prism cube black | Black and White |
| Aluminum and Plastic | Glass and Metal |
| Scratch-Resistant Glass | -- |
| $ 339.00 | -- |
| 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 980 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Mali-G76 MP5 GPU | Adreno 512 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | microSDXC (up to 400 GB) external memory slot |
| 15.38 | 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 (480 fps) (HD) slow motion video | -- |
| 11.55 | 10.01 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 3700mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 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
Samsung Galaxy A51 5G has a general score of 90.8, which is better than the Samsung Galaxy A8 Star's general score of 82.1. Both of these phones have Android OS, but Samsung Galaxy A51 5G has the older 11 version while Samsung Galaxy A8 Star has Android 9.0 Pie. Although the Samsung Galaxy A51 5G is thicker than Samsung Galaxy A8 Star, it's just a bit lighter and newer.
The Galaxy A8 Star and Galaxy A51 5G count with very similar processors, they have 8 cores and the same RAM memory amount. The Galaxy A51 5G features a bit better looking screen than Galaxy A8 Star, because it has a slightly higher resolution of 1080 x 2400 pixels, a bit larger screen and a bit better pixel density.
The Samsung Galaxy A51 5G counts with a much greater storage for applications, games, photos and videos than Samsung Galaxy A8 Star, because it has more internal memory and a slot for SD memory cards that holds a maximum of 1000 GB. Samsung Galaxy A51 5G has improved battery performance than Galaxy A8 Star, because it has a 4500mAh battery size.
The Samsung Galaxy A51 5G counts with a better camera than Samsung Galaxy A8 Star, because although it has a tinier camera aperture, and they both have the same video frame rates and the same (4K) video resolution, the Samsung Galaxy A51 5G also counts with a back camera with way more megapixels and a lot bigger back-facing camera sensor shooting way better quality videos and photographs.
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