Compare phones
| Global Score | |
| 86.5 | 98.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11 |
| 2020-03-05 | 2021-01-29 |
| 6.27 x 2.96 x 0.35 inches | 6.50 x 2.98 x 0.35 inches |
| 6.74 ounces | 8.04 ounces |
| Black, Blue and Red | Phantom black and Silver |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.4 inches | 6.8 inches |
| 2340 x 1080 pixels | 3200 x 1440 pixels |
| Super AMOLED | Dynamic AMOLED |
| 403 pixels per inch | 516 pixels per inch |
| 420 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 9.8 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 888 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 12 GB RAM |
| Mali-G72 MP3 GPU | Adreno 660 GPU |
| 9.36 | 9.72 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 64.00 MP + 32.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.1 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy S21 Ultra has a general score of 98.1, which is better than Galaxy M31's general score of 86.5. The Samsung Galaxy S21 Ultra is a heavier phone than Galaxy M31, but they are equally thin. Both devices we compare here use the same Android 11 OS (operating system). The Galaxy S21 Ultra features a little better processing power than Samsung Galaxy M31, and although they both have a Octa-Core processing unit, the Galaxy S21 Ultra also has more RAM memory.
The Galaxy S21 Ultra has a much better looking screen than Samsung Galaxy M31, because it has a higher resolution of 1440 x 3200 pixels, a little bit larger screen, a lot brighter screen and a higher pixels count per inch of display. Samsung Galaxy S21 Ultra captures much clearer photos and videos than Samsung Galaxy M31, and although they both have a F1.8 aperture, the Samsung Galaxy S21 Ultra also has a lot better video definition, a lot bigger camera sensor shooting much higher quality videos and photos and a back camera with a lot higher resolution.
The Galaxy M31 has more storage for games and applications than Galaxy S21 Ultra, because although it has only 64 GB internal storage, it also counts with a slot for an external memory card that admits up to 512 GB. The Samsung Galaxy M31 has better battery duration than Galaxy S21 Ultra, because it has a 6000mAh battery size against 5000mAh.
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