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- 300 Ultra vs 15
Honor 300 Ultra vs Xiaomi 15
What 300 Ultra does better (8) and where 15 wins (12) — every spec side by side.
Dimensions
Size comparison
300 Ultra15
| 300 Ultra | 15 | Difference | |
|---|---|---|---|
| Height | 163.8 mm | 152.3 mm | +11.5 mm |
| Width | 75.3 mm | 71.2 mm | +4.1 mm |
| Thickness | 8.2 mm | 8.1 mm | +0.1 mm |
| Weight | 198 g | 192 g | +6 g |
Drawn to the same scale from the official dimensions (front and side).
Why is 300 Ultra better than 15?
- Wired charging100 W vs 90 W+11%
- Optical zoom3.8× vs 2.6×+46%
- Peak brightness4,000 nits vs 3,200 nits+25%
- Storage (base)512 GB vs 256 GB2×
- Screen size6.8″ vs 6.4″+7%
- Wireless charging power80 W vs 50 W+60%
- Selfie camera50 MP vs 32 MP+56%
- Charged in 30 min118% vs 83%+42%
Why is 15 better than 300 Ultra?
- Refresh rate120 Hz vs 920 Hz7.7×
- Geekbench 6 (multi-core)6,702 vs 9,419+41%
- AnTuTu score2,237,843 vs 2,534,638+13%
- Water resistance (IPx)IPx5 vs IPx8+60%
- CPU frequency3 GHz vs 4.32 GHz+44%
- Max video4K vs 8K
- eSIMNo · 300 Ultra: Yes
- Pixel density437 ppi vs 460 ppi+5%
- Weight198 g vs 192 g+3%
- USB version2 vs 3.2+60%
- Process4 nm vs 3 nm+33%
- Main camera aperturef/2 vs f/1.6+25%
Specifications
Side by side
| Design | ||
| Weight | 198 g | 192 g |
| Thickness | 8.2 mm | 8.1 mm |
| Height | 163.8 mm | 152.3 mm |
| Width | 75.3 mm | 71.2 mm |
| Frame | Plastic | Aluminium |
| Back | Glass | Glass |
| Ingress protection | IP65 | IP68 |
| Water resistance (IPx) | IPx5 | IPx8 |
| Glass protection | Giant rhino glass | Xiaomi Shield Glass |
| Colours | Black, White | Black, White, Liquid Silver, Green, Lilac |
| Display | ||
| Screen size | 6.8″ | 6.4″ |
| Panel | AMOLED | LTPO AMOLED |
| OLED panel | Yes | Yes |
| LTPO (adaptive 1–120 Hz) | — | Yes |
| Resolution (width) | 1,224 px | 1,200 px |
| Resolution (height) | 2,700 px | 2,670 px |
| Pixel density | 437 ppi | 460 ppi |
| Refresh rate | 120 Hz | 920 Hz |
| Peak brightness | 4,000 nits | 3,200 nits |
| Measured brightness | — | 1,517 nits |
| Screen-to-body ratio | 90.4% | 90% |
| HDR | Yes | Yes |
| Performance | ||
| Chipset | Qualcomm SM8650-AB Snapdragon 8 Gen 3 | Qualcomm SM8750-AB Snapdragon 8 Elite |
| Chip maker | Qualcomm | Qualcomm |
| Process | 4 nm | 3 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 3 GHz | 4.32 GHz |
| GPU | Adreno 750 | Adreno 830 |
| AnTuTu score | 2,237,843 | 2,534,638 |
| Geekbench 6 (multi-core) | 6,702 | 9,419 |
| 3DMark Wild Life Extreme | — | 5,980 |
| Memory | ||
| RAM | 16 GB | 16 GB |
| Storage (max) | 1,024 GB | 1,024 GB |
| Storage (base) | 512 GB | 256 GB |
| Storage type | — | UFS 4.0 |
| Memory card slot | No | No |
| Camera | ||
| Main camera | 50 MP | 50 MP |
| Main camera aperture | f/2 | f/1.6 |
| Main sensor size | 1/1.56" | 1/1.31" |
| Rear cameras | 3 | 3 |
| Optical stabilisation | Yes | Yes |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | Yes | Yes |
| Optical zoom | 3.8× | 2.6× |
| Max video | 4K | 8K |
| 4K video frame rate | 60 fps | 60 fps |
| Selfie camera | 50 MP | 32 MP |
| 4K selfie video | Yes | Yes |
| Battery | ||
| Battery capacity | 5,300 mAh | 5,240 mAh |
| Battery type | Si/C | Si/C |
| Active use (test) | — | 16.5 h |
| Wired charging | 100 W | 90 W |
| Charged in 30 min | 118% | 83% |
| Wireless charging | Yes | Yes |
| Wireless charging power | 80 W | 50 W |
| Reverse wireless charging | Yes | Yes |
| Connectivity | ||
| 5G | Yes | Yes |
| eSIM | No | Yes |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.3 | 5.4 |
| NFC | Yes | Yes |
| USB | USB Type-C 2.0 | USB Type-C 3.2 |
| USB version | 2 | 3.2 |
| Video output | — | Yes |
| Satellite messaging | Yes | — |
| Infrared port | Yes | Yes |
| Dual-band GPS | — | Yes |
| Satellite navigation | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO, BDS, QZSS |
| Features | ||
| Stereo speakers | Yes | Yes |
| 3.5 mm headphone jack | No | No |
| Loudspeaker loudness | — | -25.7 LUFS |
| Fingerprint sensor | Under display, ultrasonic | Under display, ultrasonic |
| Barometer | — | Yes |
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, compass, ultrasound proximity | Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer |
| SAR (head) | — | 0.99 W/kg |
| Software | ||
| OS at launch | Android 15 | Android 15 |
| Platform | Android | Android |
| Interface | MagicOS 9 | HyperOS 2 |
| Major OS updates promised | — | 4 |
| EU label | ||
| Energy class | — | A |
| Battery charge cycles | — | 1,000 |
| Endurance per cycle | — | 63 h |
| Repairability class | — | C |
| Drop resistance class | — | C |
