Compare phones
| Global Score | |
| 71.9 | 76.1 |
| Basic Information | |
| Samsung | |
| Android 9.0 Pie | Android 10 |
| 2019-10-14 | 2020-06-29 |
| 6.25 x 2.96 x 0.35 inches | 6.61 x 3.02 x 0.32 inches |
| 6.56 ounces | 6.81 ounces |
| Diamond black and Twilight blue | Black |
| Glass (Corning Gorilla Glass 5) and Metal | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 549.00 | $ 194.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | IPS LCD |
| 403 pixels per inch | 270 pixels per inch |
| 430 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 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 | |
| 48.00 MP | 16.00 MP + 13.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.33 inches (1/3.06") sensor |
| 7680 x 4320 (15 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 3840 x 2160 (60 fps) (4K) slow motion video | -- |
| 11.22 | 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 | |
| 4000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | 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 Samsung Galaxy A21 has an overall score of 76.1, which is just a bit better than nubia Z20's score of 71.9. Both phones in this review use Android OS, but Samsung Galaxy A21 has the older 10 version and nubia Z20 has Android 9.0 Pie version. Even though Samsung Galaxy A21 and nubia Z20 were released with only 9 months difference, Samsung Galaxy A21's body is a bit thinner but also just a little heavier.
The nubia Z20 counts with a sharper screen than Galaxy A21, because although it has a bit smaller screen, it also counts with more pixels per inch in the display and a way better resolution of 1080 x 2340. Nubia Z20 counts with a bit more powerful processor than Galaxy A21, and although they both have 8 CPU cores, the nubia Z20 also has a higher amount of RAM memory.
Nubia Z20 captures much clearer videos and photos than Galaxy A21, because it has a lot higher 7680x4320 video resolution, a much higher resolution camera in the back, a way bigger sensor shooting lot higher quality pictures and a bigger camera aperture to capture better captures and video in poorly lited situations.
The nubia Z20 has a bit more storage capacity to store more apps and games than Galaxy A21, because although it has no SD card slot, it also counts with 96 GB more internal memory. The Samsung Galaxy A21 and nubia Z20 have similar battery performance.
Galaxy A21 not only is the best phones in our current comparison, but it's also by far the cheapest one, making this phone a no doubt choice.
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