Compare phones
| Global Score | |
| 82.1 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 11, 10 |
| 2018-08-27 | 2019-12-27 |
| 6.39 x 3.03 x 0.30 inches | 6.24 x 2.90 x 0.31 inches |
| 6.74 ounces | 6.07 ounces |
| Black and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Glass and Metal | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 282.00 |
| 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 9611 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 512 GPU | Mali-G72 MP3 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 512 GB) external memory slot |
| 11.34 | 14.14 |
| 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 (240 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 | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3700mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 5.92 |
| 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 has a general score of 85.5, which is a little bit better than Samsung Galaxy A8 Star's overall score of 82.1. The Galaxy A51 body is newer and a little bit lighter than Samsung Galaxy A8 Star's, although it's just a little bit thicker. These devices work with Android OS (operating system), but the Galaxy A51 has the older 11 version and Samsung Galaxy A8 Star has Android 9.0 Pie.
Galaxy A51 counts with a slightly better screen than Samsung Galaxy A8 Star, because it has a bit higher resolution of 1080 x 2400, a quite bigger display and a just a little greater amount of pixels per inch of display. Galaxy A51 has a lot bigger storage capacity for applications and games than Samsung Galaxy A8 Star, because it has a SD extension slot that holds a maximum of 512 GB and 128 GB internal memory capacity.
The Samsung Galaxy A51's CPU is very similar to the Samsung Galaxy A8 Star one, and although the Samsung Galaxy A51 has 2 GB less RAM, they both have the same number of cores. Galaxy A51 features a little longer battery duration than Galaxy A8 Star, because it has 4000mAh of battery capacity. Samsung Galaxy A51 shoots much better photos and videos than Galaxy A8 Star, because although it has a tinier diafragm aperture which is not good for low light captures, and they both have the same 3840x2160 video resolution and the same 30 fps video frame rate, the Samsung Galaxy A51 also counts with a back facing camera with a lot higher resolution and a lot bigger sensor.
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