Compare phones
| Global Score | |
| 75.8 | 84.1 |
| Basic Information | |
| Samsung | |
| Android 9.0 Pie | Android 11, 10 |
| 2019-10-16 | 2020-03-23 |
| 6.76 x 3.09 x 0.38 inches | 6.26 x 2.96 x 0.35 inches |
| 7.58 ounces | 6.63 ounces |
| Cyber shade | Midnight blue and Raven black |
| Aluminum | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 600.00 | -- |
| Display / Screen | |
| 6.7 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 385 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Exynos 9611 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Adreno 640 GPU | Mali-G72 MP3 GPU |
| 9.81 | 9.27 |
| Storage | |
| 256 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 11.74 |
| Camera | |
| 48.00 MP + 16.00 MP | 48.00 MP + 20.00 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 | 3840 x 2160 (30 fps) (4K) video resolution |
| 3840 x 2160 (30 fps) (4K) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.88 | 11.55 |
| 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 | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy M21 is much better than nubia Red Magic 3S, having a overall score of 84.1 against 75.8. Both devices in this comparison work with Android OS (Operating System), but the Galaxy M21 has older 11 version and nubia Red Magic 3S has Android 9.0 Pie version. The Galaxy M21 construction is somewhat lighter and just a little thinner than nubia Red Magic 3S, although both of them were released only a few months apart.
The nubia Red Magic 3S features a little better hardware performance than Samsung Galaxy M21, and although they both have the same number of cores, the nubia Red Magic 3S also has more RAM memory. The Samsung Galaxy M21 features a bit sharper display than nubia Red Magic 3S, because although it has a quite smaller screen, and they both have the same resolution of 1080 x 2340, the Samsung Galaxy M21 also counts with a just a little greater pixels density.
Nubia Red Magic 3S features a little bit better camera than Galaxy M21, and although they both have a back facing camera with a 48 megapixels and the same back-facing camera sensor size, the nubia Red Magic 3S also has a bigger aperture to capture better captures in poorly lited situations and a way better video resolution.
Nubia Red Magic 3S counts with more memory capacity for applications, games, photos and videos than Galaxy M21, because although it has no slot for an external memory card, it also counts with more internal memory capacity. The Galaxy M21 has improved battery life than nubia Red Magic 3S, because it has a 20% more battery size.
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