Compare phones
| Global Score | |
| 81 | 80.6 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 12 | Android 14 |
| -- | 2024-10-29 |
| -- | 6.00 x 2.80 x 0.32 inches |
| -- | 6.67 ounces |
| Black and White | -- |
| Aluminum and Ceramic | Glass |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.7 inches | 6.4 inches |
| 3200 x 1440 pixels | 2670 x 1200 pixels |
| AMOLED | OLED |
| 524 pixels per inch | 457 pixels per inch |
| 1500 cd/m2 brightness | 3200 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.7 | 10.2 |
| Performance | |
| Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset | Snapdragon 8 Elite SM8750-AB (3 nm) chipset |
| processor | processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 730 GPU | Adreno 830 GPU |
| 6.21 | 6.21 |
| Storage | |
| 256 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 13.3 | 13.3 |
| Camera | |
| 50.00 MP + 20.00 MP | 50.00 MP + 32.00 MP |
| f/2.00 aperture | f/1.60 aperture |
| 24.00mm focal length | 23.00mm focal length |
| 0.5 inches (1/2") sensor | -- |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1920 x 1080 (1920 fps) (Full HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 12.32 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G |
| Nano SIM | Nano SIM |
| 10.6 | 7 |
| Battery Life | |
| 4800mAh Battery | 5400mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.64 | 7.12 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.4 |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass and Gyroscope |
Comparison review
Xiaomi 12S Ultra has an overall score of 81, which is a bit better than Xiaomi 15's 80.6 score. Xiaomi 12S Ultra is a notably thinner and noticeably lighter phone than Xiaomi 15. Both of these phones include Android OS, but the Xiaomi 12S Ultra has 12 version and Xiaomi 15 has Android 14. Xiaomi 15 has a slightly better looking screen than Xiaomi 12S Ultra, because although it has a quite lower 1200 x 2670 resolution, a quite smaller display and a just a bit lower number of pixels per screen inch, it also counts with a much brighter screen.
The Xiaomi 15 counts with a processor that is very similar to the Xiaomi 12S Ultra one, and although the Xiaomi 15 has a greater amount of RAM memory, they both have a Octa-Core CPU. Xiaomi 15 counts with as much memory to store more apps and games as the Xiaomi 12S Ultra, both of them have the same 256 GB internal memory.
Xiaomi 15 has just a bit better battery performance than Xiaomi 12S Ultra, because it has a 13 percent bigger battery capacity. The Xiaomi 12S Ultra features a slightly better camera than Xiaomi 15, although it has a smaller diafragm aperture and worse video frame rate, they both have the same 7680x4320 video definition and a same resolution camera.
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