Compare phones
| Global Score | |
| 72.6 | 76.1 |
| Basic Information | |
| Samsung | |
| Android 10 | Android 10 |
| 2020-06-02 | 2020-06-29 |
| 6.45 x 2.98 x 0.35 inches | 6.61 x 3.02 x 0.32 inches |
| 7.13 ounces | 6.81 ounces |
| Arctic white and Glacier blue | Black |
| Glass and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 380.00 | $ 194.00 |
| Display / Screen | |
| 6.6 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 399 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Mediatek Helio P35 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 640 GPU | PowerVR GE8320 GPU |
| 9.72 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 9.84 |
| Camera | |
| 64.00 MP + 32.00 MP | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.59 inches (1/1.7") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 12.54 | 9.35 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 4200mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.08 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy A21 is just a bit better than realme X3 SuperZoom, getting a 76.1 score against 72.6. These phones come with the same Android 10 OS, so both should give you very similar operating system features. Even when Galaxy A21 and the realme X3 SuperZoom were only released with a couple of months difference, Galaxy A21 is a little thinner and just a little lighter.
The realme X3 SuperZoom features a sharper screen than Samsung Galaxy A21, because it has a bit larger display, a lot higher 1080 x 2400 resolution and more pixels per display inch. The realme X3 SuperZoom counts with slightly more memory capacity for applications, games, photos and videos than Galaxy A21, because although it has no SD memory card expansion slot, it also counts with 128 GB internal storage capacity.
The realme X3 SuperZoom features a little bit better processing power than Samsung Galaxy A21, and although they both have a Octa-Core CPU, the realme X3 SuperZoom also has a higher amount of RAM memory. Realme X3 SuperZoom has a bit better battery performance than Samsung Galaxy A21, because it has 4200mAh of battery capacity instead of 4000mAh.
The realme X3 SuperZoom has a very superior camera than Samsung Galaxy A21, and although they both have a same size camera aperture, the realme X3 SuperZoom also has a way higher 3840x2160 video quality, a way higher 64 megapixels resolution back facing camera and a much larger camera sensor.
The Samsung Galaxy A21 not only is the best devices between the ones we are comparing, but it's also very cheap compared to the other devices.
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