Nothing Phone (2a) vs Xiaomi 15 Ultra
The Verdict
Nothing Phone 2a offers exceptional value at $349, delivering a compelling mid-range experience with a 6.7-inch AMOLED display at 1300 nits brightness, 120Hz refresh rate, and solid 50MP main camera with OIS. The MediaTek Dimensity 7200 Pro handles everyday tasks smoothly, while the 5000mAh battery with 45W charging provides reliable endurance. Build quality feels premium for the price despite plastic materials and IP54 rating. Xiaomi 15 Ultra stands in a completely different tier at $999, featuring a flagship Snapdragon 8 Elite processor, professional-grade camera system with a 1-inch 50MP sensor and 200MP 5x periscope telephoto, and a stunning 3200-nit 1440p LTPO AMOLED display. The 5810mAh battery supports 90W wired and 50W wireless charging, while titanium construction and IP68 rating provide superior durability. Camera versatility separates these phones most dramatically: the Ultra captures 8K video and offers true optical zoom performance impossible on the 2a. Choose the Nothing Phone 2a if you prioritize affordability and solid daily performance. Select the Xiaomi 15 Ultra if you demand cutting-edge photography, maximum performance, and are willing to pay premium pricing for flagship capabilities.
Who Should Buy
Buy the Nothing Phone (2a) if…
- →Distinctive transparent design with Glyph Interface
- →Clean Nothing OS with minimal bloat
- →Solid 50 MP dual camera setup
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
Nothing Phone (2a)
Pros
- Distinctive transparent design with Glyph Interface
- Clean Nothing OS with minimal bloat
- Solid 50 MP dual camera setup
- Excellent value for money
Cons
- Plastic build at this price
- No wireless charging
- Only IP54 splash resistance
- Mid-tier Dimensity chipset rather than Snapdragon
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 | Nothing Phone (2a) | Xiaomi 15 Ultra |
|---|---|---|
| Software | Android 14, Nothing OS 2.5 | Android 15 (HyperOS 2) |
| Body | ||
| Weight | 190 g | 229 g |
| Material | Plastic frame, plastic back | Titanium frame, Gorilla Glass Victus 2 |
| IP rating | IP54 | IP68 |
| Dimensions | 161.7 x 76.3 x 8.6 mm | 161.1 x 75.2 x 9.17 mm |
| Camera | ||
| Main camera | 50 MP, f/1.88, OIS, Samsung GN9 | 50 MP, f/1.63, OIS (1-inch sensor) |
| Front camera | 32 MP, f/2.2 | 32 MP, f/2.0 |
| Video | 4K@30fps | 8K@30fps, 4K@120fps |
| Ultrawide | 50 MP, f/2.2, 114-degree | 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 | 128 GB, 256 GB | 256 GB, 512 GB, 1 TB |
| Battery | ||
| Capacity | 5000 mAh | 5810 mAh |
| Charging | 45W wired | 90W wired |
| Wireless charging | No | 50W wireless |
| Display | ||
| Size | 6.7 inches | 6.73 inches |
| Type | AMOLED | LTPO AMOLED |
| Resolution | 2412 x 1084 | 3200 x 1440 |
| Refresh rate | 120Hz | 1-120Hz |
| Brightness (nits) | 1300 | 3200 |
| Processor | ||
| CPU | Octa-core (2x2.8 GHz Cortex-A715 + 6x2.0 GHz A510) | Octa-core (2x4.32 GHz + 6x3.53 GHz) |
| GPU | Mali-G610 MC4 | Adreno 830 |
| Chipset | MediaTek Dimensity 7200 Pro | Qualcomm Snapdragon 8 Elite |
| Connectivity | ||
| 5G | ||
| NFC | ||
| USB | USB-C 2.0 | USB-C 3.2 |
| Wi-Fi | Wi-Fi 6 | 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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