ASUS Zenfone 12 Ultra vs Redmi K90 Ultra
Which one should you buy?
Who leads where?
- DisplayRedmi K90 Ultra
- PerformanceASUS Zenfone 12 Ultra
- Battery and ChargingRedmi K90 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.
 ASUSASUS Zenfone 12 UltraNo reviews yet |  RedmiRedmi K90 UltraNo reviews yet | |
|---|---|---|
| Key Differences | ||
| Processor | Snapdragon 8 Elite | Snapdragon 8 Elite |
| Screen Size | 6.78" | 6.83" |
| Main Camera | 50 MP | 50 MP |
| Battery | 5500 mAh | 8550 mAh |
| Fast Charging | 65 W | 100 W |
| Display | ||
| Size | 6.78" | 6.83" |
| Panel | AMOLED LTPO | AMOLED |
| Resolution | 1080x2400 | 1280x2772 |
| Refresh Rate | 120 Hz | 165 Hz |
| Peak Brightness | 2500 nit | 3500 nit |
| Performance | ||
| Chipset | Snapdragon 8 Elite | Snapdragon 8 Elite |
| Graphics Processor | Adreno 830 | Adreno 830 |
| RAM | 16 GB | 12 GB |
| Storage | 512 GB | 256 GB |
| Storage type | UFS 4.0 | UFS 4.1 |
| Manufacturing Technology | No data | 3 nm |
| Camera | ||
| Main Camera | 50 MP | 50 MP |
| Main Aperture | f/1.9 | f/1.7 |
| Ultra Wide | 13 MP | 8 MP |
| Front Camera | No data | 20 MP |
| Battery and Charging | ||
| Capacity | 5500 mAh | 8550 mAh |
| Cell Type | No data | Silicon-carbon |
| Wired Charging | 65 W | 100 W |
| Wireless Charging | 15 W | No data |
| Design | ||
| Weight | 220 g | 227 g |
| Thickness | 8.9 mm | 8.2 mm |
| Frame | No data | Aluminum |
| Back Surface | No data | Glass |
| Connectivity | ||
| 5G | Yes | Yes |
| SIM | Nano SIM + eSIM | Dual SIM |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.4 | 5.4 |
| NFC | Yes | No data |
| Durability and security | ||
| IP Certification | IP68 | IP68/IP69 |
| Biyometrik | In-Screen Fingerprint | Optical In-Display Fingerprint |
| Software | ||
| Operating System | Android | Android |
| Version | Android 15 | Android 16 |
| Interface | No data | HyperOS 3 |
| Multimedia and ports | ||
| Speaker | No data | Stereo (Bose-tuned) |
| USB | No data | USB Type-C |
Redmi K90 Ultra leads on 6 of 10 compared specs.
This table is based on manufacturers official specifications. Winning on paper does not always mean a difference in everyday use.