Compare phones
| Global Score | |
| 73 | 85.5 |
| Basic Information | |
| Sony | Samsung |
| Android 4.4.2 | Android 11, 10 |
| -- | 2019-12-27 |
| 5.39 x 2.83 x 0.43 inches | 6.24 x 2.90 x 0.31 inches |
| 5.75 ounces | 6.07 ounces |
| Black, Blue and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 249.00 | $ 282.00 |
| Display / Screen | |
| 5 inches | 6.5 inches |
| 1080 x 1920 pixels (Full HD) | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 441 pixels per inch | 405 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 801 8974-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 + 0.30 MP | 48.00 MP + 32.00 MP |
| -- | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.43 inches (1/2.3") 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 (120 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.24 | 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 | |
| 3000mAh Li-Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 690 hours standby time 15 hours talk time | -- |
| 4.96 | 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
Samsung Galaxy A51 has a general score of 85.5, which is much better than Xperia Z2a's overall score of 73. These phones use Android OS (Operating System), but the Samsung Galaxy A51 has an older 11 version while Xperia Z2a has Android 4.4.2 version. Samsung Galaxy A51 is a way thinner but a little bit heavier phone than Xperia Z2a.
Xperia Z2a and Galaxy A51 feature incredibly similar processing units, because although the Galaxy A51 has doesn't have an additional graphics co-processor, it also counts with more RAM memory and a greater number of cores. The Xperia Z2a has a sharper display than Galaxy A51, because although it has a much smaller screen and a little bit lower resolution of 1920 x 1080, it also counts with a little bit greater pixels number in each inch of screen.
Galaxy A51 has a much better memory capacity for apps and games than Sony Xperia Z2a, because it has a slot for an SD memory card that admits a maximum of 512 GB and more internal memory. The Galaxy A51 features a lot better camera than Xperia Z2a, and although they both have the same (4K) video definition and the same video frame rate, the Galaxy A51 also has a bigger sensor and a camera with much more mega pixels.
Galaxy A51 counts with superior battery performance than Xperia Z2a, because it has a 33 percent more battery capacity.
The Galaxy A51 costs a bit more money than Sony Xperia Z2a, but it's still a good choice, because you can get a lot more for that extra money.
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