Google Pixel 5a vs Xiaomi 15 Ultra
The Verdict
Pixel 5a and Xiaomi 15 Ultra occupy completely different market segments. The Pixel 5a is a budget-friendly option at $449 with a capable 12.2 MP main camera (f/1.7, OIS) and 6.34-inch OLED display (700 nits), paired with Snapdragon 765G and 6 GB RAM. Battery life is solid with 4680 mAh capacity, though charging tops out at 18W wired. The 15 Ultra is a flagship at $999 featuring a 1-inch sensor with 50 MP main, 200 MP 5x periscope telephoto, and 50 MP ultrawide. Its 6.73-inch LTPO AMOLED reaches 3200 nits brightness, and it powers through tasks with Snapdragon 8 Elite and 16 GB RAM. The 15 Ultra charges at 90W wired and 50W wireless, supports 8K video, and offers 256 GB to 1 TB storage. For $450, the Pixel 5a delivers exceptional value with clean software, reliable performance, and proven computational photography. For $999, the 15 Ultra provides flagship hardware across every metric: superior zoom, faster charging, brighter display, and more RAM. Choose the Pixel 5a for everyday practicality and budget consciousness; choose the 15 Ultra if you want flagship capabilities and advanced camera versatility. These phones serve different buyers entirely.
Who Should Buy
Buy the Google Pixel 5a if…
- →Large 4680 mAh battery for excellent endurance
- →IP67 water resistance (first a-series with it)
- →Great computational photography at $449
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
Google Pixel 5a
Pros
- Large 4680 mAh battery for excellent endurance
- IP67 water resistance (first a-series with it)
- Great computational photography at $449
- Headphone jack retained
- Clean stock Android experience
Cons
- 60Hz display
- Slow 18W charging
- No wireless charging
- Only available in the US and Japan
- Snapdragon 765G is mid-range
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 | Google Pixel 5a | Xiaomi 15 Ultra |
|---|---|---|
| Software | Android 11 | Android 15 (HyperOS 2) |
| Body | ||
| Weight | 183 g | 229 g |
| Material | Aluminum unibody, polycarbonate coating | Titanium frame, Gorilla Glass Victus 2 |
| IP rating | IP67 | IP68 |
| Dimensions | 156.2 x 73.2 x 8.8 mm | 161.1 x 75.2 x 9.17 mm |
| Camera | ||
| Main camera | 12.2 MP, f/1.7, OIS | 50 MP, f/1.63, OIS (1-inch sensor) |
| Front camera | 8 MP, f/2.0 | 32 MP, f/2.0 |
| Video | 4K@60fps | 8K@30fps, 4K@120fps |
| Ultrawide | 16 MP, f/2.2 | 50 MP, f/2.0, 128-degree |
| Telephoto | — | 200 MP, f/2.6, 5x periscope optical zoom, OIS |
| Memory | ||
| RAM | 6 GB | 16 GB |
| Storage options | 128 GB | 256 GB, 512 GB, 1 TB |
| Battery | ||
| Capacity | 4680 mAh | 5810 mAh |
| Charging | 18W wired | 90W wired |
| Wireless charging | No | 50W wireless |
| Display | ||
| Size | 6.34 inches | 6.73 inches |
| Type | OLED | LTPO AMOLED |
| Resolution | 2400 x 1080 | 3200 x 1440 |
| Refresh rate | 60Hz | 1-120Hz |
| Brightness (nits) | 700 | 3200 |
| Processor | ||
| CPU | Octa-core (1x2.4 GHz + 1x2.2 GHz + 6x1.8 GHz) | Octa-core (2x4.32 GHz + 6x3.53 GHz) |
| GPU | Adreno 620 | Adreno 830 |
| Chipset | Qualcomm Snapdragon 765G | Qualcomm Snapdragon 8 Elite |
| Connectivity | ||
| 5G | ||
| NFC | ||
| USB | USB-C 3.1 | USB-C 3.2 |
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 7 |
| Bluetooth | 5.0 | 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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