Compare phones
| Global Score | |
| 72.9 | 80.1 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 12 | Android 15 |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.3 inches | 6.7 inches |
| 2400 x 1080 pixels | -- |
| AMOLED | AMOLED |
| 418 pixels per inch | -- |
| 1100 cd/m2 brightness | 3000 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.9 | 5 |
| Performance | |
| Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset | Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm) chipset |
| processor | processor |
| 8 GB RAM | 16 GB RAM |
| Adreno 730 GPU | Adreno 830 GPU |
| 6.21 | 6.3 |
| Storage | |
| 128 GB internal memory | 512 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 17.6 |
| Camera | |
| 50.00 MP + 16.00 MP | 200.00 MP + 32.00 MP |
| -- | 7680 x 4320 (30 fps) video resolution |
| -- | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 8.47 | 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 | Nano SIM |
| 10.6 | 7.6 |
| Battery Life | |
| 4500mAh Battery | 6000mAh Si - Carbon Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | 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, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Xiaomi 15 Ultra (Rumored) is just a bit better than Xiaomi 12S, with an 80.1 score against 72.9. Both phones in this review work with Android operating system, but Xiaomi 15 Ultra (Rumored) has newer 15 version while Xiaomi 12S has Android 12 version. Xiaomi 15 Ultra (Rumored) has a little faster processor than Xiaomi 12S, and although they both have a Octa-Core processor, the Xiaomi 15 Ultra (Rumored) also has 8 GB more RAM.
The Xiaomi 12S counts with a lot better screen than Xiaomi 15 Ultra (Rumored), although it has much lower brightness and a little bit smaller screen. Xiaomi 15 Ultra (Rumored) captures way better photos and videos than Xiaomi 12S, because it has a much better 200 megapixels resolution camera in the back.
Xiaomi 15 Ultra (Rumored) has a superior storage for games and applications than Xiaomi 12S, because it has 384 GB more internal storage capacity. The Xiaomi 15 Ultra (Rumored) counts with improved battery duration than Xiaomi 12S, because it has 6000mAh of battery capacity against 4500mAh.
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