Compare phones
| Global Score | |
| 73 | 76.1 |
| Basic Information | |
| Sony | Samsung |
| Android 4.4.2 | Android 10 |
| -- | 2020-06-29 |
| 5.39 x 2.83 x 0.43 inches | 6.61 x 3.02 x 0.32 inches |
| 5.75 ounces | 6.81 ounces |
| Black, Blue and White | Black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 249.00 | $ 194.00 |
| Display / Screen | |
| 5 inches | 6.5 inches |
| 1080 x 1920 pixels (Full HD) | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 441 pixels per inch | 270 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 801 8974-AB chipset | Mediatek Helio P35 chipset |
| Krait 400 (Quad-Core 2300 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Adreno 330 (450 MHz) GPU | PowerVR GE8320 GPU |
| 9.27 | 9.27 |
| Storage | |
| 16 GB internal memory | 32 GB internal memory |
| microSD, microSDHC, microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 6.72 | 9.84 |
| Camera | |
| 20.70 MP + 0.30 MP | 16.00 MP + 13.00 MP |
| -- | f/1.80 aperture |
| 0.43 inches (1/2.3") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 9.24 | 9.35 |
| 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 |
| 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
Galaxy A21 is just a bit better than the Xperia Z2a, with a 76.1 score against 73. The Galaxy A21 design is heavier but much thinner than the Xperia Z2a. Both devices we are comparing include Android OS (Operating System), but the Galaxy A21 has an older 10 version and Xperia Z2a has Android 4.4.2.
The Xperia Z2a features a lot better display than Galaxy A21, because although it has a really smaller display, it also counts with a better resolution of 1920 x 1080 pixels and a way greater pixels density. The Galaxy A21 counts with a processing unit that is just as good as the Xperia Z2a one, because although the Galaxy A21 has doesn't have an additional graphics processor, and they both have the same RAM memory amount, it also counts with a larger number of cores.
Galaxy A21 takes just a bit better videos and photos than Sony Xperia Z2a, although it has a lot worse resolution back camera, a much smaller back-facing camera sensor shooting way lower quality videos and photos and a way lower 1920x1080 (Full HD) video quality. Galaxy A21 has much more memory capacity for applications and games than Xperia Z2a, because it has a SD extension slot that allows up to 512 GB and 32 GB internal storage capacity.
Galaxy A21 counts with improved battery lifetime than Xperia Z2a, because it has a 4000mAh battery size against 3000mAh.
Even being the best phone in our comparison, the Galaxy A21 is also a bargain compared to the other phones.
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