Compare phones
| Global Score | |
| 73 | 90.8 |
| Basic Information | |
| Sony | Samsung |
| Android 4.4.2 | Android 11, 10 |
| -- | 2020-04-29 |
| 5.39 x 2.83 x 0.43 inches | 6.26 x 2.90 x 0.34 inches |
| 5.75 ounces | 6.60 ounces |
| Black, Blue and White | Prism cube black |
| -- | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 249.00 | $ 339.00 |
| 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 980 chipset |
| Krait 400 (Quad-Core 2300 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali-G76 MP5 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 1000 GB) external memory slot |
| 6.72 | 15.38 |
| 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 (480 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 | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM |
| 7 | 10.7 |
| Battery Life | |
| 3000mAh Li-Ion Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 690 hours standby time 15 hours talk time | -- |
| 4.96 | 6.32 |
| 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 5G has a score of 90.8, which is a lot better than the Xperia Z2a's 73 global score. Both phones in this comparison work with Android OS, but the Galaxy A51 5G has an older 11 version and Xperia Z2a has Android 4.4.2 version. Galaxy A51 5G's construction is way thinner but heavier than the Xperia Z2a.
The Sony Xperia Z2a and the Samsung Galaxy A51 5G have quite similar CPUs, because although the Samsung Galaxy A51 5G has doesn't have an extra graphics co-processor, it also counts with a greater number of cores and a greater amount of RAM. Xperia Z2a counts with a sharper screen than Samsung Galaxy A51 5G, because although it has a quite lower resolution of 1920 x 1080 and a way smaller display, it also counts with a bit higher pixels density.
Galaxy A51 5G counts with a superior memory to install applications and games than Xperia Z2a, because it has an external memory slot that holds up to 1000 GB and 128 GB internal storage. Galaxy A51 5G has a superior battery performance than Xperia Z2a, because it has a 50% bigger battery capacity.
Samsung Galaxy A51 5G features a greater camera than Xperia Z2a, and although they both have the same 30 fps video frame rate and the same 3840x2160 (4K) video resolution, the Samsung Galaxy A51 5G also has a larger sensor shooting better quality videos and photos and a much higher resolution back camera.
The Samsung Galaxy A51 5G is more expensive than the Sony Xperia Z2a, but you can get a much better phone for that few extra dollars.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.