Compare phones
| Global Score | |
| 89 | 80.1 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 11 | Android 15 |
| 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 |
| 8.1 | 5 |
| Performance | |
| Qualcomm Snapdragon 888+ SM8350-AC chipset | Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm) chipset |
| Kryo 680 Prime, 64-bit, 5 nm (Octa-Core 3000 MHz) processor | processor |
| 8 GB RAM | 16 GB RAM |
| Adreno 660 GPU | Adreno 830 GPU |
| 9.72 | 6.3 |
| Storage | |
| 128 GB internal memory | 512 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 17.6 |
| Camera | |
| 108.00 MP + 20.00 MP | 200.00 MP + 32.00 MP |
| f/1.90 aperture | -- |
| 24.00mm focal length | -- |
| 0.75 inches (1/1.33") sensor | -- |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1920 x 1080 (480 fps) (Full HD) slow motion video | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 13.75 | 12.87 |
| 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, Dual SIM | Nano SIM |
| 10.6 | 7.6 |
| Battery Life | |
| 4500mAh Li - Ion Battery | 6000mAh Si - Carbon Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.32 | 7.52 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.4 |
| 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 score of 89, which is better than Xiaomi 15 Ultra (Rumored)'s 80.1 general score. Both phones we compare here include Android OS (operating system), but Xiaomi Mi Mix 4 has older 11 version and Xiaomi 15 Ultra (Rumored) has Android 15. The Xiaomi Mi Mix 4 counts with a much greater performance than Xiaomi 15 Ultra (Rumored), although it has 8 GB less RAM, they both have the same number of cores.
Xiaomi Mi Mix 4 has a much better looking display than Xiaomi 15 Ultra (Rumored). Both have a screen with the same size. The Xiaomi 15 Ultra (Rumored) has a way bigger storage to install applications and games or saving photos and videos than Xiaomi Mi Mix 4, because it has more internal memory. The Xiaomi 15 Ultra (Rumored) counts with superior battery duration than Xiaomi Mi Mix 4, because it has a 6000mAh battery size.
Xiaomi Mi Mix 4 counts with a little bit better camera than Xiaomi 15 Ultra (Rumored), although it has a lower video quality and a back facing camera with a way worse resolution.
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