Compare phones
| Global Score | |
| 77.7 | 82.9 |
| Basic Information | |
| Samsung | |
| Android 10 | Android 11, 10 |
| 2020-06-19 | 2020-08-20 |
| 6.44 x 2.96 x 0.35 inches | 5.67 x 2.73 x 0.32 inches |
| 6.77 ounces | 5.04 ounces |
| Black, Blue, Red and White | Just black |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 349.00 |
| Display / Screen | |
| 6.5 inches | 5.8 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| TFT | OLED |
| 270 pixels per inch | 444 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8.3 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 730G SM7150-AA chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G76 GPU | Adreno 618 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 12.20 MP + 8.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 10.78 | 9.79 |
| 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, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3140mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.12 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Google Pixel 4a has an overall score of 82.9, which is just a bit better than the Galaxy A21s's global score of 77.7. The Google Pixel 4a construction is a little thinner and extremely lighter than Galaxy A21s, although they were released with only a couple months difference. These devices have Android OS, but Google Pixel 4a has a more recent 11 version and Galaxy A21s has Android 10 version, so it gives a couple nice extra features and a performance increase.
The Google Pixel 4a has a brighter screen than Galaxy A21s, because although it has a little bit smaller display, it also counts with a lot higher 1080 x 2340px resolution and a way better display density. The Google Pixel 4a has a little bit better performance than Galaxy A21s, and although they both have the same number of cores, the Google Pixel 4a also has 3 GB more RAM memory.
Galaxy A21s takes better videos and photos than Google Pixel 4a, because although it has a smaller diafragm aperture, and they both have the same video frame rate and the same 1920x1080 video resolution, the Galaxy A21s also counts with a back camera with a much higher resolution and a way bigger back-facing camera sensor shooting way better quality videos and photos.
Google Pixel 4a features a slightly bigger storage capacity to install applications and games or saving photos and videos than Galaxy A21s, because although it has no SD card slot, it also counts with more internal memory. The Samsung Galaxy A21s has a very superior battery lifetime than Google Pixel 4a, because it has a 59% more battery size.
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