Compare phones
| Global Score | |
| 85.2 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2018-11-15 | 2019-12-27 |
| 6.40 x 3.03 x 0.31 inches | 6.24 x 2.90 x 0.31 inches |
| 6.46 ounces | 6.07 ounces |
| Bubblegum pink, Caviar black and Lemonade blue | 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 | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 14.14 |
| Camera | |
| 24.00 MP + 24.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 27.00mm 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 |
| 10.45 | 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, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3800mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.76 | 5.92 |
| 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, 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 just a bit better than the Galaxy A9 (2018)'s 85.2 general score. Galaxy A51 is a just a little bit lighter cellphone than the Galaxy A9 (2018), but both have the same thickness. The Galaxy A9 (2018) and the Galaxy A51 both count with extremely similar processing units, and although the Galaxy A51 has 2 GB lesser RAM, they both have the same number of cores.
The Galaxy A51 counts with a bit sharper screen than Samsung Galaxy A9 (2018), because it has a slightly higher resolution of 1080 x 2400 pixels, a little larger screen and a little bit higher pixels density. The Samsung Galaxy A51 takes much clearer pictures and videos than Galaxy A9 (2018), because although it has a smaller diafragm aperture which is worse for taking pictures and/or video in low-light environments, and they both have the same (4K) video resolution and the same 30 frames per second video frame rate, the Samsung Galaxy A51 also counts with a lot higher 48 mega-pixels resolution back camera and a lot larger back camera sensor taking more light and vivid colors.
The Galaxy A51 and Galaxy A9 (2018) count with very similar memory capacity for games and applications, they have equal internal memory capacity and a SD card slot that admits up to 512 GB. Galaxy A51 has a bit better battery life than Samsung Galaxy A9 (2018), because it has 4000mAh of battery capacity against 3800mAh.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.