Honor X9b vs Xiaomi 15 Ultra
The Verdict
Positioned at opposite ends of the market, these phones serve vastly different users. Honor X9b delivers impressive value with its 6.78-inch 120Hz AMOLED display, 5800mAh battery, and capable 108MP main camera, making it ideal for budget-conscious buyers prioritizing battery life and display quality. Xiaomi 15 Ultra represents flagship excellence with a 3200x1440 LTPO AMOLED screen, Snapdragon 8 Elite processor, exceptional camera system featuring a 1-inch 50MP main sensor and 200MP 5x periscope telephoto, plus 90W charging and wireless charging. Performance gap is substantial: the Ultra's Adreno 830 GPU and 4.32GHz cores drastically outpace Snapdragon 6 Gen 1, while its titanium build and IP68 rating exceed X9b's plastic construction and IP53 water resistance. Camera capabilities diverge sharply, with Ultra's 8K video, optical zoom, and superior sensors versus X9b's more basic setup. For casual users seeking longevity and good value, X9b impresses. Demanding users needing cutting-edge performance, premium cameras, and fast charging should choose the 15 Ultra without hesitation.
Who Should Buy
Buy the Honor X9b if…
- →Massive 5800 mAh battery provides outstanding multi-day endurance
- →2000-nit AMOLED display brightness is excellent for outdoor use
- →108 MP main sensor captures detailed photos in good lighting
Buy the Xiaomi 15 Ultra if…
- →200MP periscope telephoto with 5x optical zoom rivals Galaxy S25 Ultra
- →1-inch main sensor with Leica optics produces stunning photos
- →Titanium frame gives a premium, durable build
Category Scores
Pros & Cons
Honor X9b
Pros
- Massive 5800 mAh battery provides outstanding multi-day endurance
- 2000-nit AMOLED display brightness is excellent for outdoor use
- 108 MP main sensor captures detailed photos in good lighting
- Enhanced drop resistance with 2-layer glass structure
- 5G connectivity at an affordable price point
Cons
- 35W charging is slow for the large 5800 mAh battery
- 5 MP ultrawide and 2 MP macro cameras are filler
- IP53 splash resistance is basic protection
- No wireless charging
- MagicOS has some bloatware and ads
Xiaomi 15 Ultra
Pros
- 200MP periscope telephoto with 5x optical zoom rivals Galaxy S25 Ultra
- 1-inch main sensor with Leica optics produces stunning photos
- Titanium frame gives a premium, durable build
- 4K@120fps video recording is industry-leading
- 90W fast charging and 50W wireless on a huge 5810 mAh battery
Cons
- Heavy at 229 g and thick at 9.17 mm
- Very expensive at $999 with limited global availability
- HyperOS software experience lags behind iOS and One UI
- Camera bump is extremely large
Full Specifications
| Spec | Honor X9b | Xiaomi 15 Ultra |
|---|---|---|
| Software | Android 13 (MagicOS 7.2) | Android 15 (HyperOS 2) |
| Body | ||
| Weight | 185 g | 229 g |
| Material | Plastic frame, glass front (2-ply drop resistant), plastic back | Titanium frame, Gorilla Glass Victus 2 |
| IP rating | IP53 | IP68 |
| Dimensions | 161.5 x 74.9 x 7.98 mm | 161.1 x 75.2 x 9.17 mm |
| Camera | ||
| Main camera | 108 MP, f/1.75, PDAF | 50 MP, f/1.63, OIS (1-inch sensor) |
| Front camera | 16 MP, f/2.5 | 32 MP, f/2.0 |
| Macro | 2 MP, f/2.4 | — |
| Video | 4K@30fps | 8K@30fps, 4K@120fps |
| Ultrawide | 5 MP, f/2.2 | 50 MP, f/2.0, 128-degree |
| Telephoto | — | 200 MP, f/2.6, 5x periscope optical zoom, OIS |
| Memory | ||
| RAM | 8 GB / 12 GB | 16 GB |
| Storage options | 256 GB | 256 GB, 512 GB, 1 TB |
| Battery | ||
| Capacity | 5800 mAh | 5810 mAh |
| Charging | 35W wired | 90W wired |
| Wireless charging | No | 50W wireless |
| Display | ||
| Size | 6.78 inches | 6.73 inches |
| Type | AMOLED | LTPO AMOLED |
| Resolution | 2436 x 1116 | 3200 x 1440 |
| Refresh rate | 120Hz | 1-120Hz |
| Brightness (nits) | 2000 | 3200 |
| Processor | ||
| CPU | Octa-core (4x2.2 GHz + 4x1.8 GHz) | Octa-core (2x4.32 GHz + 6x3.53 GHz) |
| GPU | Adreno 710 | Adreno 830 |
| Chipset | Qualcomm Snapdragon 6 Gen 1 | Qualcomm Snapdragon 8 Elite |
| Connectivity | ||
| 5G | ||
| NFC | ||
| USB | USB-C 2.0 | USB-C 3.2 |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 7 |
| Bluetooth | 5.1 | 5.4 |
Related Comparisons
This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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