Compare phones
| Global Score | |
| 71.9 | 77.7 |
| Basic Information | |
| Samsung | |
| Android 9.0 Pie | Android 10 |
| 2019-10-14 | 2020-06-19 |
| 6.25 x 2.96 x 0.35 inches | 6.44 x 2.96 x 0.35 inches |
| 6.56 ounces | 6.77 ounces |
| Diamond black and Twilight blue | Black, Blue, Red and White |
| Glass (Corning Gorilla Glass 5) and Metal | -- |
| Scratch-Resistant Glass | -- |
| $ 549.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | TFT |
| 403 pixels per inch | 270 pixels per inch |
| 430 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Samsung Exynos 850 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 640 GPU | Mali-G76 GPU |
| 9.72 | 9.09 |
| 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 | 48.00 MP + 13.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") 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 | 10.78 |
| 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 | |
| 4000mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.8 |
| 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, Gyroscope and Proximity Sensor |
Comparison review
Galaxy A21s has an overall score of 77.7, which is slightly better than nubia Z20's global score of 71.9. Both phones in this comparison have Android OS, but Galaxy A21s has the previous 10 version while nubia Z20 has Android 9.0 Pie. The Galaxy A21s design has the same thickness than nubia Z20, but it is a little heavier.
Nubia Z20 features a brighter display than Galaxy A21s, because although it has a bit smaller screen, it also counts with a way better 1080 x 2340 pixels resolution and a greater pixels count in each inch of display. Nubia Z20 has a little bit more memory to install applications and games than Galaxy A21s, because although it has no external memory card slot, it also counts with 128 GB internal memory capacity.
Nubia Z20 has a little faster processing unit than Samsung Galaxy A21s, and although they both have the same number of cores, the nubia Z20 also has 5 GB more RAM. The nubia Z20 shoots a bit better pictures and videos than Samsung Galaxy A21s, and although they both have the same resolution back camera and a same size camera sensor, the nubia Z20 also has a larger aperture and a lot better video quality.
The Samsung Galaxy A21s features longer battery performance than nubia Z20, because it has a 25 percent greater battery capacity.
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