Compare phones
| Global Score | |
| 72.9 | 85.5 |
| Basic Information | |
| Sony | Samsung |
| Android 4.4.4, 4.4.2 | Android 11, 10 |
| 2014-02-24 | 2019-12-27 |
| 5.78 x 2.89 x 0.32 inches | 6.24 x 2.90 x 0.31 inches |
| 5.75 ounces | 6.07 ounces |
| Black, Purple and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Glass | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 500.00 | $ 282.00 |
| Display / Screen | |
| 5.2 inches | 6.5 inches |
| 1080 x 1920 pixels (Full HD) | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 424 pixels per inch | 405 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 801 MSM8974-AB chipset | Samsung Exynos 9611 chipset |
| Krait 400 (Quad-Core 2300 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali-G72 MP3 GPU |
| 9.27 | 9.27 |
| Storage | |
| 16 GB internal memory | 128 GB internal memory |
| microSD, microSDHC, microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 6.72 | 14.14 |
| Camera | |
| 20.70 MP + 2.20 MP | 48.00 MP + 32.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.43 inches (1/2.3") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 8.8 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 3200mAh Li-Ion Battery | 4000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 690 hours standby time 15 hours talk time | -- |
| 5.2 | 5.92 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy A51 has an overall score of 85.5, which is much better than the Xperia Z2's 72.9 general score. Both of these devices work with Android OS (Operating System), but Galaxy A51 has 11 version while Xperia Z2 has Android 4.4.4 version. Galaxy A51's construction is much newer and a little thinner than the Xperia Z2's, although it is also a little heavier.
The Galaxy A51's processor is very similar to Sony Xperia Z2's processing unit, because although the Galaxy A51 has doesn't have a GPU, it also counts with more RAM memory and a larger number of 2.3 gigahertz cores. Xperia Z2 features a brighter screen than Samsung Galaxy A51, because although it has a little lower resolution of 1920 x 1080 pixels and a much smaller screen, it also counts with a quite higher pixels count in each display inch.
The Galaxy A51 features a much bigger memory for games and applications than Sony Xperia Z2, because it has 128 GB internal memory and a slot for SD memory cards that supports a maximum of 512 GB. Samsung Galaxy A51 features superior battery performance than Xperia Z2, because it has a 25 percent bigger battery capacity.
The Samsung Galaxy A51 captures greater pictures and videos than Sony Xperia Z2, and although they both have the same video frame rates, the same 3840x2160 video resolution and the same aperture, the Samsung Galaxy A51 also has a much better 48 megapixels resolution camera and a bigger sensor capturing higher quality videos and pictures.
Samsung Galaxy A51 is not only the best phones in this comparison, but it's also a bargain compared to others, making it a great choice.
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