Compare phones
| Global Score | |
| 75.6 | 84.1 |
| Basic Information | |
| Samsung | |
| Android 9.0 Pie | Android 11, 10 |
| 2019-05-27 | 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 |
| Black and Red | 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 chipset | Exynos 9611 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 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 |
| 9.72 | 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 better than the nubia Red Magic 3, getting a general score of 84.1 against 75.6. The Galaxy M21 is a newer phone, and it's also somewhat lighter and a bit thinner than the nubia Red Magic 3. Both devices in this comparison use Android OS (operating system), but the Galaxy M21 has the previous 11 version while nubia Red Magic 3 has Android 9.0 Pie version.
Samsung Galaxy M21 features just a bit better screen than nubia Red Magic 3, because although it has a quite smaller screen, and they both have the same exact resolution of 1080 x 2340 pixels, the Samsung Galaxy M21 also counts with a just a little greater number of pixels per screen inch. Nubia Red Magic 3 counts with a little faster CPU than Samsung Galaxy M21, and although they both have 8 cores, the nubia Red Magic 3 also has more RAM memory.
The nubia Red Magic 3 shoots just a bit better photographs and videos than Samsung Galaxy M21, and although they both have a 48 MP resolution camera and a same size sensor, the nubia Red Magic 3 also has a lot better video resolution and a bigger camera aperture for better captures in poorly lited environments.
Nubia Red Magic 3 counts with a bigger storage for apps and games than Galaxy M21, because although it has no slot for an external memory card, it also counts with 192 GB more internal memory. The Galaxy M21 features improved battery duration than nubia Red Magic 3, because it has a 6000mAh battery size.
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