Compare phones
| Global Score | |
| 75.6 | 76.1 |
| Basic Information | |
| Samsung | |
| Android 9.0 Pie | Android 10 |
| 2019-05-27 | 2020-06-29 |
| 6.76 x 3.09 x 0.38 inches | 6.61 x 3.02 x 0.32 inches |
| 7.58 ounces | 6.81 ounces |
| Black and Red | Black |
| Aluminum | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 600.00 | $ 194.00 |
| Display / Screen | |
| 6.7 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | IPS LCD |
| 385 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 855 SM8150 chipset | Mediatek Helio P35 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 12 GB RAM | 3 GB RAM |
| Adreno 640 GPU | PowerVR GE8320 GPU |
| 9.72 | 9.27 |
| Storage | |
| 256 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 9.84 |
| Camera | |
| 48.00 MP + 16.00 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 (30 fps) (4K) slow motion video | -- |
| 11.88 | 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 | |
| 5000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | 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
Samsung Galaxy A21 has an overall score of 76.1, which is a bit better than nubia Red Magic 3's global score of 75.6. Both devices in this comparison work with Android OS (Operating System), but Samsung Galaxy A21 has older 10 version while nubia Red Magic 3 has Android 9.0 Pie. The Samsung Galaxy A21 design is newer, lighter and thinner than the nubia Red Magic 3.
Nubia Red Magic 3 has a little faster CPU than Galaxy A21, and although they both have the same number of cores, the nubia Red Magic 3 also has 9 GB more RAM memory. Nubia Red Magic 3 counts with a brighter screen than Samsung Galaxy A21, because it has more pixels per display inch, a lot higher resolution of 1080 x 2340px and a quite bigger display.
The nubia Red Magic 3 features a way better camera than Galaxy A21, because it has a lot bigger sensor taking lot higher quality pictures and videos, a lot better video quality, a larger diafragm aperture for better photography and video in low light situations and a lot more mega-pixels back-facing camera.
Nubia Red Magic 3 counts with much more memory for applications, games, photos and videos than Samsung Galaxy A21, because although it has no SD card slot, it also counts with 224 GB more internal storage. Nubia Red Magic 3 counts with improved battery performance than Galaxy A21, because it has a 5000mAh battery capacity against 4000mAh.
The Samsung Galaxy A21 not only is the best devices of the ones we are comparing here, but it's also by far the cheapest one.
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