Compare phones
| Global Score | |
| 71.9 | 88 |
| Basic Information | |
| Samsung | |
| Android 9.0 Pie | Android 11, 10 |
| 2019-10-14 | 2020-08-06 |
| 6.25 x 2.96 x 0.35 inches | 6.27 x 2.93 x 0.37 inches |
| 6.56 ounces | 7.16 ounces |
| Diamond black and Twilight blue | Mirage black and Mirage blue |
| Glass (Corning Gorilla Glass 5) and Metal | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 549.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 405 pixels per inch |
| 430 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Samsung 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 |
| 8 GB RAM | 6 GB RAM |
| Adreno 640 GPU | Mali-G72 MP3 GPU |
| 9.72 | 9.36 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 48.00 MP | 64.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.59 inches (1/1.7") sensor |
| 7680 x 4320 (15 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 3840 x 2160 (60 fps) (4K) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 11.22 | 12.1 |
| 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 | 6000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| 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 Galaxy M31s is a lot better than nubia Z20, with an 88 score against 71.9. These devices have Android operating system, but Galaxy M31s has the older 11 version and nubia Z20 has Android 9.0 Pie. Galaxy M31s's body is newer than the nubia Z20's, but it is just a little bit heavier and a little bit thicker.
Nubia Z20 features a little sharper screen than Samsung Galaxy M31s, although it has a little worse resolution of 1080 x 2340, a just a bit lower display density and a quite smaller display. The Galaxy M31s has a very superior memory for games and applications than nubia Z20, and although they both have exactly the same internal storage, the Galaxy M31s also has a SD memory slot that admits up to 512 GB.
The nubia Z20 counts with a bit superior processor than Samsung Galaxy M31s, and although they both have the same number of cores, the nubia Z20 also has a larger amount of RAM memory. Samsung Galaxy M31s takes a bit better photos and videos than nubia Z20, because although it has a tinier camera aperture, and they both have the same 3840x2160 video definition, the Samsung Galaxy M31s also counts with a lot higher resolution camera, a bigger back-facing camera sensor taking more light and vivid colors and faster 30 frames per second video frame rates.
The Samsung Galaxy M31s has a superior battery performance than nubia Z20, because it has a 50 percent bigger battery size.
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