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- 15 vs 15 Ultra
OnePlus 15 vs Xiaomi 15 Ultra
What 15 does better (13) and where 15 Ultra wins (10) — every spec side by side.
Dimensions
Size comparison
1515 Ultra
| 15 | 15 Ultra | Difference | |
|---|---|---|---|
| Height | 161.4 mm | 161.3 mm | +0.1 mm |
| Width | 76.7 mm | 75.3 mm | +1.4 mm |
| Thickness | 8.1 mm | 9.4 mm | −1.3 mm |
| Weight | 211 g | 226 g | −15 g |
Drawn to the same scale from the official dimensions (front and side).
Why is 15 better than 15 Ultra?
- Battery capacity7,300 mAh vs 5,410 mAh+35%
- Active use (test)23.1 h vs 16.2 h+43%
- Refresh rate165 Hz vs 120 Hz+38%
- Wired charging120 W vs 90 W+33%
- Geekbench 6 (multi-core)11,062 vs 9,710+14%
- 3DMark Wild Life Extreme7,370 vs 5,626+31%
- Repairability classB vs C
- Weight211 g vs 226 g+7%
- CPU frequency4.6 GHz vs 4.32 GHz+6%
- Charged in 30 min100% vs 72%+39%
- Endurance per cycle74 h vs 59 h+26%
- Thickness8.1 mm vs 9.4 mm+16%
Why is 15 Ultra better than 15?
- Peak brightness1,800 nits vs 3,200 nits+78%
- AnTuTu score2,790,237 vs 3,030,376+9%
- Optical zoom3.5× vs 4.3×+23%
- Measured brightness1,364 nits vs 1,588 nits+16%
- Pixel density450 ppi vs 522 ppi+16%
- Wireless charging power50 W vs 80 W+60%
- Rear cameras3 vs 4+33%
- Resolution (width)1,272 px vs 1,440 px+13%
- Main camera aperturef/1.8 vs f/1.6+12%
- Loudspeaker loudness-24.8 LUFS vs -24.1 LUFS+-3%
Specifications
Side by side
| Design | ||
| Weight | 211 g | 226 g |
| Thickness | 8.1 mm | 9.4 mm |
| Height | 161.4 mm | 161.3 mm |
| Width | 76.7 mm | 75.3 mm |
| Frame | Aluminium | Aluminium |
| Back | Glass | Silicone polymer |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Glass protection | Corning Gorilla Glass Victus 2 | Xiaomi Shield Glass 2.0 |
| Colours | Infinite Black, Ultra Violet, Sand Storm | Black, White, Silver Chrome, Green |
| Display | ||
| Screen size | 6.8″ | 6.7″ |
| Panel | LTPO AMOLED | LTPO AMOLED |
| OLED panel | Yes | Yes |
| LTPO (adaptive 1–120 Hz) | Yes | Yes |
| Resolution (width) | 1,272 px | 1,440 px |
| Resolution (height) | 2,772 px | 3,200 px |
| Pixel density | 450 ppi | 522 ppi |
| Refresh rate | 165 Hz | 120 Hz |
| Peak brightness | 1,800 nits | 3,200 nits |
| Measured brightness | 1,364 nits | 1,588 nits |
| Screen-to-body ratio | 90.8% | 89.7% |
| HDR | Yes | Yes |
| Performance | ||
| Chipset | Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 | Qualcomm SM8750-AB Snapdragon 8 Elite |
| Chip maker | Qualcomm | Qualcomm |
| Process | 3 nm | 3 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 4.6 GHz | 4.32 GHz |
| GPU | Adreno 840 | Adreno 830 |
| AnTuTu score | 2,790,237 | 3,030,376 |
| Geekbench 6 (multi-core) | 11,062 | 9,710 |
| 3DMark Wild Life Extreme | 7,370 | 5,626 |
| Memory | ||
| RAM | 16 GB | 16 GB |
| Storage (max) | 1,024 GB | 1,024 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/1.8 | f/1.6 |
| Main sensor size | 1/1.56" | 1" |
| Rear cameras | 3 | 4 |
| Optical stabilisation | Yes | Yes |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | Yes | Yes |
| Optical zoom | 3.5× | 4.3× |
| Max video | 8K | 8K |
| 4K video frame rate | 120 fps | 120 fps |
| Selfie camera | 32 MP | 32 MP |
| 4K selfie video | Yes | Yes |
| Battery | ||
| Battery capacity | 7,300 mAh | 5,410 mAh |
| Battery type | Si/C | Si/C |
| Active use (test) | 23.1 h | 16.2 h |
| Wired charging | 120 W | 90 W |
| Charged in 30 min | 100% | 72% |
| Wireless charging | Yes | Yes |
| Wireless charging power | 50 W | 80 W |
| Reverse wireless charging | Yes | Yes |
| Connectivity | ||
| 5G | Yes | Yes |
| eSIM | Yes | Yes |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 6 | 6 |
| NFC | Yes | Yes |
| USB | USB Type-C 3.2 | USB Type-C 3.2 Gen 2 |
| USB version | 3.2 | 3.2 |
| Video output | Yes | Yes |
| Satellite messaging | — | Yes |
| Infrared port | Yes | Yes |
| Dual-band GPS | Yes | Yes |
| Satellite navigation | GLONASS, GALILEO, BDS, QZSS, NavIC | GLONASS, GALILEO, BDS, QZSS, NavIC |
| Features | ||
| Stereo speakers | Yes | Yes |
| 3.5 mm headphone jack | No | No |
| Loudspeaker loudness | -24.8 LUFS | -24.1 LUFS |
| Fingerprint sensor | Under display, ultrasonic | Under display, ultrasonic |
| Barometer | Yes | Yes |
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro (UAV-grade), compass, barometer (exc. China) | Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer |
| SAR (head) | 1.17 W/kg | 1 W/kg |
| Software | ||
| OS at launch | Android 16 | Android 15 |
| Platform | Android | Android |
| Interface | OxygenOS 16 (Global) | HyperOS 3 |
| Major OS updates promised | — | 4 |
| EU label | ||
| Energy class | A | A |
| Battery charge cycles | 1,100 | 1,000 |
| Endurance per cycle | 74 h | 59 h |
| Repairability class | B | C |
| Drop resistance class | C | C |
