| Global Score | |
| 88 | 80.1 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 15 |
| 2020-08-06 | -- |
| 6.27 x 2.93 x 0.37 inches | -- |
| 7.16 ounces | -- |
| Mirage black and Mirage blue | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 2400 x 1080 pixels | -- |
| Super AMOLED | AMOLED |
| 405 pixels per inch | -- |
| -- | 3000 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 5 |
| Performance | |
| Samsung 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 | |
| 128 GB internal memory | 512 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 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 |
| 1280 x 720 (480 fps) (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 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 | -- |
Galaxy M31s is a little bit better than the Xiaomi 15 Ultra (Rumored), having an 88 score against 80.1. Both of these phones use Android OS, but Galaxy M31s has an older 11 version and Xiaomi 15 Ultra (Rumored) has Android 15. The Samsung Galaxy M31s has a much better performing processor than Xiaomi 15 Ultra (Rumored), although it has a smaller amount of RAM memory, they both have a Octa-Core processor.
Galaxy M31s has a much sharper screen than Xiaomi 15 Ultra (Rumored), although it has a quite smaller screen. The Xiaomi 15 Ultra (Rumored) takes a bit better photographs and videos than Galaxy M31s, because it has a much more mega-pixels camera in the back and a way better 7680x4320 video definition.
The Xiaomi 15 Ultra (Rumored) features a very superior memory to install applications and games or saving photos and videos than Galaxy M31s, because although it has no slot for SD memory cards, it also counts with 384 GB more internal memory capacity. The Xiaomi 15 Ultra (Rumored) has a battery duration that's very similar to Galaxy M31s's battery lifetime.
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