Xiaomi 13 vs Xiaomi 15 Ultra
The Verdict
Xiaomi 15 Ultra significantly outpaces the 13 across nearly every dimension. Display quality is substantially better with 3200x1440 resolution, 3200 nits peak brightness, and adaptive 1-120Hz refresh versus the 13's 2400x1080 and 1900 nits. The 15 Ultra's Snapdragon 8 Elite delivers noticeably faster performance than the 8 Gen 2, with improvements in GPU speed via Adreno 830. Camera capabilities show the largest gap: the 15 Ultra boasts a larger 1-inch main sensor at 50MP, a massive 200MP telephoto with 5x optical zoom (versus 3.2x), and improved video at 8K@30fps and 4K@120fps. Battery capacity jumps from 4500 to 5810 mAh with faster 90W charging. Build quality upgrades include titanium framing and Gorilla Glass Victus 2. RAM maxes out at 16GB with up to 1TB storage. However, the 15 Ultra weighs 229g versus 185g, making it noticeably heavier. The $200 price premium is justified by the superior hardware across display, processing, imaging, and battery technology. Unless weight is critical or budget is tight, the 15 Ultra delivers substantially better capabilities for photography enthusiasts and power users willing to spend more.
Who Should Buy
Buy the Xiaomi 13 if…
- →Compact flagship with flat display — rare in 2023
- →Leica-tuned triple camera system
- →Snapdragon 8 Gen 2 at competitive pricing
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
Xiaomi 13
Pros
- Compact flagship with flat display — rare in 2023
- Leica-tuned triple camera system
- Snapdragon 8 Gen 2 at competitive pricing
- Lightweight 185 g despite flagship specs
- 50W wireless charging
Cons
- 67W wired charging (slower than Xiaomi 13 Pro)
- No telephoto periscope
- MIUI ads and bloatware can be annoying
- USB-C 2.0 data speeds
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 | Xiaomi 13 | Xiaomi 15 Ultra |
|---|---|---|
| Software | Android 13 (MIUI 14) | Android 15 (HyperOS 2) |
| Body | ||
| Weight | 185 g | 229 g |
| Material | Aluminum frame, Gorilla Glass Victus | Titanium frame, Gorilla Glass Victus 2 |
| IP rating | IP68 | IP68 |
| Dimensions | 152.8 x 71.5 x 7.98 mm | 161.1 x 75.2 x 9.17 mm |
| Camera | ||
| Main camera | 54 MP, f/1.8, OIS — Leica tuned | 50 MP, f/1.63, OIS (1-inch sensor) |
| Front camera | 32 MP, f/2.0 | 32 MP, f/2.0 |
| Video | 8K@24fps, 4K@60fps | 8K@30fps, 4K@120fps |
| Telephoto | 10 MP, f/2.0, 3.2x optical zoom — Leica tuned | 200 MP, f/2.6, 5x periscope optical zoom, OIS |
| Ultrawide | 12 MP, f/2.2, 120-degree — Leica tuned | 50 MP, f/2.0, 128-degree |
| Memory | ||
| RAM | 8 GB | 16 GB |
| Storage options | 128 GB, 256 GB | 256 GB, 512 GB, 1 TB |
| Battery | ||
| Capacity | 4500 mAh | 5810 mAh |
| Charging | 67W wired | 90W wired |
| Wireless charging | 50W wireless | 50W wireless |
| Display | ||
| Size | 6.36 inches | 6.73 inches |
| Type | AMOLED | LTPO AMOLED |
| Resolution | 2400 x 1080 | 3200 x 1440 |
| Refresh rate | 120Hz | 1-120Hz |
| Brightness (nits) | 1900 | 3200 |
| Processor | ||
| CPU | Octa-core (1x3.19 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510) | Octa-core (2x4.32 GHz + 6x3.53 GHz) |
| GPU | Adreno 740 | Adreno 830 |
| Chipset | Qualcomm Snapdragon 8 Gen 2 | Qualcomm Snapdragon 8 Elite |
| Connectivity | ||
| 5G | ||
| NFC | ||
| USB | USB-C 2.0 | USB-C 3.2 |
| Wi-Fi | Wi-Fi 6E | Wi-Fi 7 |
| Bluetooth | 5.3 | 5.4 |
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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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