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- Signature 27 vs Redmi K90 Ultra
Motorola Signature 27 vs Xiaomi Redmi K90 Ultra
What Signature 27 does better (14) and where Redmi K90 Ultra wins (4) — every spec side by side.
vs
9.6Display9.8
9.8Performance9.6
9.8Camera9.0
9.7Battery9.6
9.4Features9.3
Dimensions
Size comparison
Signature 27Redmi K90 Ultra
| Signature 27 | Redmi K90 Ultra | Difference | |
|---|---|---|---|
| Height | 162.1 mm | 162.9 mm | −0.8 mm |
| Width | 76.4 mm | 77.9 mm | −1.5 mm |
| Thickness | 7.2 mm | 8.2 mm | −1 mm |
| Weight | 191 g | 227 g | −36 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Signature 27 better than Redmi K90 Ultra?
- AnTuTu score5,153,294 vs 3,233,695+59%
- Storage (max)1,024 GB vs 512 GB2×
- Telephoto cameraYes · Redmi K90 Ultra: No
- Wireless chargingYes · Redmi K90 Ultra: No
- Geekbench 6 (multi-core)12,703 vs 10,224+24%
- Selfie camera50 MP vs 20 MP2.5×
- 4K selfie videoYes · Redmi K90 Ultra: No
- Weight191 g vs 227 g+19%
- CPU frequency5.01 GHz vs 4.32 GHz+16%
- USB version3.1 vs 2+55%
- Process2 nm vs 3 nm+50%
- Rear cameras3 vs 2+50%
Why is Redmi K90 Ultra better than Signature 27?
- Battery capacity7,000 mAh vs 8,550 mAh+22%
- Peak brightness6,200 nits vs 9,500 nits+53%
- Wired charging90 W vs 100 W+11%
- Main camera aperturef/1.9 vs f/1.7+12%
Specifications
Side by side
| Design | ||
| Weight | 191 g | 227 g |
| Thickness | 7.2 mm | 8.2 mm |
| Height | 162.1 mm | 162.9 mm |
| Width | 76.4 mm | 77.9 mm |
| Frame | Aluminium | Aluminium |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Glass protection | Corning Gorilla Glass Victus 2 | — |
| Colours | Pantone: Coal Smoke, Capulet Olive | Black, Blue, Silver |
| Display | ||
| Screen size | 6.8″ | 6.8″ |
| Panel | LTPO AMOLED | AMOLED |
| OLED panel | Yes | Yes |
| LTPO (adaptive 1–120 Hz) | Yes | — |
| Resolution (width) | 1,264 px | 1,280 px |
| Resolution (height) | 2,780 px | 2,772 px |
| Pixel density | 449 ppi | 447 ppi |
| Refresh rate | 165 Hz | 165 Hz |
| Peak brightness | 6,200 nits | 9,500 nits |
| Screen-to-body ratio | 90.2% | 90.3% |
| HDR | Yes | Yes |
| Performance | ||
| Chipset | Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 | Qualcomm SM8750-AB Snapdragon 8 Elite |
| Chip maker | Qualcomm | Qualcomm |
| Process | 2 nm | 3 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 5.01 GHz | 4.32 GHz |
| GPU | Adreno 850 | Adreno 830 |
| AnTuTu score | 5,153,294 | 3,233,695 |
| Geekbench 6 (multi-core) | 12,703 | 10,224 |
| Memory | ||
| RAM | 16 GB | 16 GB |
| Storage (max) | 1,024 GB | 512 GB |
| Storage (base) | 256 GB | 256 GB |
| Storage type | UFS 4.1 | UFS 4.1 |
| Memory card slot | No | No |
| Camera | ||
| Main camera | 50 MP | 50 MP |
| Main camera aperture | f/1.9 | f/1.7 |
| Main sensor size | 1/1.28" | 1/1.55" |
| Rear cameras | 3 | 2 |
| Optical stabilisation | Yes | Yes |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | Yes | No |
| Optical zoom | 5× | — |
| Max video | 8K | 8K |
| 4K video frame rate | 60 fps | 60 fps |
| Selfie camera | 50 MP | 20 MP |
| 4K selfie video | Yes | No |
| Battery | ||
| Battery capacity | 7,000 mAh | 8,550 mAh |
| Battery type | Si/C | Si/C |
| Wired charging | 90 W | 100 W |
| Wireless charging | Yes | No |
| Wireless charging power | 50 W | — |
| Reverse wireless charging | Yes | — |
| Connectivity | ||
| 5G | Yes | Yes |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 6 | 5.4 |
| NFC | Yes | Yes |
| USB | USB Type-C 3.1 Gen2 | USB Type-C |
| USB version | 3.1 | 2 |
| Video output | Yes | — |
| Ultra Wideband | Yes | — |
| Infrared port | — | Yes |
| Dual-band GPS | — | Yes |
| Satellite navigation | GLONASS, GALILEO, BDS, NavIC | GLONASS, GALILEO, BDS, QZSS, NavIC |
| Features | ||
| Stereo speakers | Yes | Yes |
| 3.5 mm headphone jack | No | No |
| Fingerprint sensor | Under display, ultrasonic | Under display |
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, proximity, gyro, compass |
| Software | ||
| OS at launch | Android 17 | Android 16 |
| Platform | Android | Android |
| Interface | — | HyperOS 3 |
| Major OS updates promised | 7 | — |
