Redmi K90 Ultra vs Xiaomi 15 Ultra
Which one should you buy?
Who leads where?
- DisplayRedmi K90 Ultra
- CameraXiaomi 15 Ultra
- Battery and ChargingRedmi K90 Ultra
- ConnectivityXiaomi 15 Ultra
Wins are counted from the official values in the table below; the BUY / CONSIDER / WAIT call comes from each product's own decision box. We do not predict prices.
 RedmiRedmi K90 UltraNo reviews yet |  XiaomiXiaomi 15 UltraNo reviews yet | |
|---|---|---|
| Key Differences | ||
| Processor | Snapdragon 8 Elite | Snapdragon 8 Elite |
| Screen Size | 6.83" | 6.73" |
| Main Camera | 50 MP | 50 MP |
| Battery | 8550 mAh | 5410 mAh |
| Fast Charging | 100 W | 90 W |
| Display | ||
| Size | 6.83" | 6.73" |
| Panel | AMOLED | LTPO AMOLED |
| Resolution | 1280x2772 | 1440x3200 |
| Refresh Rate | 165 Hz | 120 Hz |
| Peak Brightness | 3500 nit | 3200 nit |
| Performance | ||
| Chipset | Snapdragon 8 Elite | Snapdragon 8 Elite |
| Graphics Processor | Adreno 830 | Adreno 830 |
| RAM | 12 GB | 12 GB |
| Storage | 256 GB | 256 GB |
| Storage type | UFS 4.1 | UFS 4.1 |
| Manufacturing Technology | 3 nm | 3 nm |
| Camera | ||
| Main Camera | 50 MP | 50 MP |
| Main Aperture | f/1.7 | f/1.6 |
| Ultra Wide | 8 MP | 50 MP |
| Telephoto | — | 4.3x |
| Telephoto Resolution | — | 200 MP |
| Front Camera | 20 MP | 32 MP |
| Battery and Charging | ||
| Capacity | 8550 mAh | 5410 mAh |
| Cell Type | Silicon-carbon | Si/C Li-Ion |
| Wired Charging | 100 W | 90 W |
| Wireless Charging | — | 80 W |
| Wireless Charging Support | — | Yes |
| Design | ||
| Weight | 227 g | 226 g |
| Thickness | 8.2 mm | 9.4 mm |
| Frame | Aluminum | Aluminum |
| Back Surface | Glass | Glass fiber reinforced plastic / leather |
| Connectivity | ||
| 5G | Yes | Yes |
| SIM | Dual SIM | Dual SIM |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.4 | 6.0 |
| NFC | — | Yes |
| Durability and security | ||
| IP Certification | IP68/IP69 | IP68 |
| Biyometrik | Optical In-Display Fingerprint | In-Screen Fingerprint |
| Software | ||
| Operating System | Android | Android |
| Version | Android 16 | Android 15 |
| Interface | HyperOS 3 | HyperOS 3 |
| Update Promise | — | 4 major version updates |
| Multimedia and ports | ||
| Speaker | Stereo (Bose-tuned) | Stereo |
| Headphone jack | — | No |
| USB | USB Type-C | USB Type-C |
Xiaomi 15 Ultra leads on 6 of 11 compared specs.
This table is based on manufacturers official specifications. Winning on paper does not always mean a difference in everyday use.