| Global Score | |
| 86.5 | 80.1 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 15 |
| 2020-03-05 | -- |
| 6.27 x 2.96 x 0.35 inches | -- |
| 6.74 ounces | -- |
| Black, Blue and Red | -- |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.7 inches |
| 2340 x 1080 pixels | -- |
| Super AMOLED | AMOLED |
| 403 pixels per inch | -- |
| 420 cd/m2 brightness | 3000 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 5 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm) chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | processor |
| 6 GB RAM | 16 GB RAM |
| Mali-G72 MP3 GPU | Adreno 830 GPU |
| 9.36 | 6.3 |
| Storage | |
| 64 GB internal memory | 512 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 17.6 |
| Camera | |
| 64.00 MP + 32.00 MP | 200.00 MP + 32.00 MP |
| f/1.80 aperture | -- |
| 26.00mm focal length | -- |
| 0.59 inches (1/1.7") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 12.1 | 12.87 |
| Networks | |
| Wi-Fi | -- |
| Mobile Hotspot | -- |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 7.6 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 6000mAh Si - Carbon Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.4 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| 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 | -- |
The Galaxy M31 has an overall score of 86.5, which is just a bit better than Xiaomi 15 Ultra (Rumored)'s 80.1 overall score. Both of these devices use Android operating system, but Galaxy M31 has an older 11 version and Xiaomi 15 Ultra (Rumored) has Android 15. The Samsung Galaxy M31 features a much powerful processing unit than Xiaomi 15 Ultra (Rumored), although it has lesser RAM memory, they both have a Octa-Core processor.
Samsung Galaxy M31 features a lot better looking display than Xiaomi 15 Ultra (Rumored), although it has much less brightness and a bit smaller display. Xiaomi 15 Ultra (Rumored) has a much greater storage to install applications and games or saving photos and videos than Galaxy M31, because although it has no slot for an SD memory card, it also counts with 512 GB internal storage capacity.
Xiaomi 15 Ultra (Rumored) and Samsung Galaxy M31 have very similar batteries. The Xiaomi 15 Ultra (Rumored) takes a little bit better pictures and videos than Galaxy M31, because it has a lot higher 7680x4320 video resolution and a much better 200 mega pixels resolution camera in the back.
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