| Global Score | |
| 84.4 | 77.8 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 14 | Android 11 |
| 2024-02-22 | 2022-03-15 |
| 6.35 x 2.96 x 0.36 inches | 6.01 x 2.75 x 0.32 inches |
| 7.75 ounces | 6.21 ounces |
| Black, Blue, Titanium Gray and White | Blue, Grey and Purple |
| -- | Aluminum and Glass |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.7 inches | 6.3 inches |
| 3200 x 1440 pixels | 2400 x 1080 pixels |
| AMOLED | AMOLED |
| 524 pixels per inch | 418 pixels per inch |
| 3000 cd/m2 brightness | 1100 cd/m2 brightness |
| No touch screen | No touch screen |
| 10.4 | 8.9 |
| Performance | |
| Qualcomm Snapdragon 8 Gen 3 SM8650-AB (4 nm) chipset | Qualcomm Snapdragon 870 SM8250-AC (7 nm) chipset |
| processor | processor |
| 12 GB RAM | 8 GB RAM |
| Adreno 750 GPU | Adreno 650 GPU |
| 6.21 | 6.21 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 13.3 | 10.1 |
| Camera | |
| 50.00 MP + 32.00 MP | 50.00 MP + 32.00 MP |
| f/1.60 aperture | f/1.90 aperture |
| 23.00mm focal length | 50.00mm focal length |
| 0.4 inches (1/2.51") sensor | -- |
| 7680 x 4320 (30 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (1920 fps) (Full HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 12.43 | 11.88 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.6 | 10.6 |
| Battery Life | |
| 5000mAh Dual Nano SIM Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 6.32 |
| Other Features | |
| Bluetooth 5.4 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | 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 |
The Xiaomi 14 Ultra has a score of 84.4, which is just a bit better than Xiaomi 12X's 77.8 general score. These phones come with Android OS, but the Xiaomi 14 Ultra has newer 14 version and Xiaomi 12X has Android 11 version, providing you lots of additional features and better performance. The Xiaomi 14 Ultra construction is newer than the Xiaomi 12X's, but it's somewhat thicker and heavier.
The Xiaomi 14 Ultra has a better looking display than Xiaomi 12X, because it has much more brightness, a little bit bigger screen, a higher 1440 x 3200 pixels resolution and a better quantity of pixels per inch in the screen. Xiaomi 14 Ultra features a much bigger memory capacity to install applications and games or saving photos and videos than Xiaomi 12X, because it has 256 GB internal memory capacity.
Xiaomi 12X and Xiaomi 14 Ultra feature really similar CPUs, and although the Xiaomi 12X has 4 GB less RAM memory, they both have 8 processing cores. Xiaomi 14 Ultra features a little better battery performance than Xiaomi 12X, because it has an 11% larger battery size. The Xiaomi 14 Ultra features a bit better camera than Xiaomi 12X, and although they both have the same video resolution and the same resolution back facing camera, the Xiaomi 14 Ultra also has a bigger aperture for better low light photography and faster 30 fps video frame rates.
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