Compare phones
| Global Score | |
| 74.2 | 85.5 |
| Basic Information | |
| Asus | Samsung |
| Android 8.0 Oreo, 7.0 Nougat | Android 11, 10 |
| 2017-10-30 | 2019-12-27 |
| 6.12 x 2.96 x 0.30 inches | 6.24 x 2.90 x 0.31 inches |
| 5.82 ounces | 6.07 ounces |
| Black, Green and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 399.00 | $ 282.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| Super IPS+ LCD | Super AMOLED |
| 401 pixels per inch | 405 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 630 chipset | Samsung Exynos 9611 chipset |
| ARM Cortex-A53, 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 |
| 4 GB RAM | 4 GB RAM |
| Adreno 508 GPU | Mali-G72 MP3 GPU |
| 9.18 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.66 | 14.14 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 32.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 25.00mm focal length | 26.00mm focal length |
| 0.39 inches (1/2.55") 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 |
| 9.57 | 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 | |
| 3300mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 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 Samsung Galaxy A51 has a global score of 85.5, which is much better than the Asus ZenFone 4's 74.2 general score. Samsung Galaxy A51's design is notably newer than Asus ZenFone 4's, although it is a little bit thicker and a little heavier. Both of these phones use Android OS, but the Samsung Galaxy A51 has 11 version while Asus ZenFone 4 has Android 8.0 Oreo.
Asus ZenFone 4 counts with a slightly better looking screen than Galaxy A51, although it has a quite worse pixels density, a bit worse resolution of 1080 x 1920 and a bit smaller screen. Asus ZenFone 4 has a bit bigger memory for games and applications than Galaxy A51, because although it has only 64 GB internal memory, it also counts with a slot for external memory cards that admits up to 1,95 TB.
Galaxy A51 features just a little better processing power than Asus ZenFone 4. Both have the same RAM amount and the same number of cores. Galaxy A51 counts with better battery lifetime than Asus ZenFone 4, because it has 4000mAh of battery capacity instead of 3300mAh. The Samsung Galaxy A51 counts with a greater camera than Asus ZenFone 4, because although it has a tinier aperture which is not so good for taking photographs or video in poorly lited situations, and they both have the same 30 fps video frame rates and the same video resolution, the Samsung Galaxy A51 also counts with a lot bigger back-facing camera sensor capturing lot higher quality photographs and a much more mega-pixels camera in the back.
Even being the best phone of the ones in this comparison, Galaxy A51 is also a bargain compared to the other ones, which makes it a great choice.
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