| Global Score | |
| 87.4 | 81 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 5.0 | Android 12 |
| 2015-04-11 | -- |
| 5.65 x 2.78 x 0.27 inches | -- |
| 4.87 ounces | -- |
| Black, Blue, Gold and White | Black and White |
| Aluminium and Glass | Aluminum and Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 252.00 | -- |
| Display / Screen | |
| 5.1 inches | 6.7 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 3200 x 1440 pixels |
| Super AMOLED | AMOLED |
| 576 pixels per inch | 524 pixels per inch |
| -- | 1500 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.9 | 9.7 |
| Performance | |
| Exynos 7 Octa 7420 chipset | Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset |
| 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor | processor |
| 3 GB (1600 MHz) RAM | 8 GB RAM |
| Mali-T760 MP8 (650 MHz) GPU | Adreno 730 GPU |
| 10.08 | 6.21 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 13.3 |
| Camera | |
| 16.00 MP + 5.00 MP | 50.00 MP + 20.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 28.00mm focal length | 24.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 10.01 | 12.32 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA, HSUPA, UMTS, EDGE, GPRS and GSM | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 2550mAh Battery | 4800mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 4.56 | 6.64 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | -- |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Galaxy S6 is just a bit better than the Xiaomi 12S Ultra, with a general score of 87.4 against 81. Both phones in this comparison use Android OS (Operating System), but the Galaxy S6 has the previous 5.0 version while Xiaomi 12S Ultra has Android 12 version. The Galaxy S6 counts with a much powerful processing unit than Xiaomi 12S Ultra, because although it has a smaller amount of RAM, and they both have the same number of cores, the Galaxy S6 also counts with an extra graphics processor and a 64-bits processing unit.
Galaxy S6 has a slightly better screen than Xiaomi 12S Ultra, because although it has a really smaller display and a little bit lower resolution of 2560 x 1440 pixels, it also counts with a just a little higher pixels density. Xiaomi 12S Ultra counts with a way bigger storage capacity to install applications and games than Galaxy S6, because it has 256 GB internal storage.
The Xiaomi 12S Ultra has a superior battery performance than Samsung Galaxy S6, because it has 4800mAh of battery capacity against 2550mAh. The Xiaomi 12S Ultra takes way better videos and photos than Galaxy S6, because although it has a tinier diafragm aperture which is not good for shooting images in low-light situations, it also counts with a way better video definition, a way bigger back camera sensor taking much higher quality pictures and a lot more megapixels camera in the back.
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