Compare phones
| Global Score | |
| 80.1 | 89 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 15 | Android 11 |
| -- | 2021-08-10 |
| -- | 6.40 x 2.97 x 0.31 inches |
| -- | 7.94 ounces |
| -- | Ceramic Black, Ceramic White and Shadow Gray |
| -- | Aluminum and Ceramic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.7 inches | 6.7 inches |
| -- | 2400 x 1080 pixels |
| AMOLED | AMOLED |
| -- | 393 pixels per inch |
| 3000 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 5 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm) chipset | Qualcomm Snapdragon 888+ SM8350-AC chipset |
| processor | Kryo 680 Prime, 64-bit, 5 nm (Octa-Core 3000 MHz) processor |
| 16 GB RAM | 8 GB RAM |
| Adreno 830 GPU | Adreno 660 GPU |
| 6.3 | 9.72 |
| Storage | |
| 512 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 17.6 | 10.1 |
| Camera | |
| 200.00 MP + 32.00 MP | 108.00 MP + 20.00 MP |
| -- | f/1.90 aperture |
| -- | 24.00mm focal length |
| -- | 0.75 inches (1/1.33") 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 (480 fps) (Full HD) slow motion video |
| 12.87 | 13.75 |
| Networks | |
| -- | Wi-Fi |
| -- | 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 |
| 7.6 | 10.6 |
| Battery Life | |
| 6000mAh Si - Carbon Battery | 4500mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 7.52 | 6.32 |
| Other Features | |
| Bluetooth 5.4 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi Mi Mix 4 has a global score of 89, which is better than the Xiaomi 15 Ultra (Rumored)'s 80.1 score. Both phones in this review come with Android operating system, but Xiaomi Mi Mix 4 has an older 11 version while Xiaomi 15 Ultra (Rumored) has Android 15. Xiaomi Mi Mix 4 features a much more vibrant display than Xiaomi 15 Ultra (Rumored). Both have a screen of the same size.
The Xiaomi Mi Mix 4 has a very superior CPU than Xiaomi 15 Ultra (Rumored), although it has 8 GB less RAM, they both have the same number of cores. Xiaomi 15 Ultra (Rumored) has a very superior memory to store more apps and games than Xiaomi Mi Mix 4, because it has 512 GB internal storage capacity.
The Xiaomi 15 Ultra (Rumored) features better battery lifetime than Xiaomi Mi Mix 4, because it has a 33% greater battery size. Xiaomi Mi Mix 4 features a slightly better camera than Xiaomi 15 Ultra (Rumored), although it has a much worse resolution back camera and a worse video definition.
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