Apple iPhone 12 vs Xiaomi 15 Ultra
The Verdict
Xiaomi 15 Ultra significantly outperforms iPhone 12 across most metrics, justifying its $200 premium. Display quality heavily favors Xiaomi with a larger 6.73-inch LTPO AMOLED screen, triple the brightness at 3200 nits versus iPhone's 1200, and adaptive 1-120Hz refresh versus static 60Hz. Camera capability is vastly superior: Xiaomi offers a 1-inch 50MP main sensor with 8K recording, 200MP telephoto with 5x optical zoom, and 50MP ultrawide, while iPhone manages only dual 12MP cameras and 4K@60fps. Performance differences are stark: Snapdragon 8 Elite with 16GB RAM crushes A14 Bionic paired with just 4GB. Battery capacity dramatically favors Xiaomi at 5810mAh with 90W charging versus iPhone's 2815mAh at 20W. iPhone 12 remains excellent for iOS users who value software coherence and reliability, but for raw specification strength and versatility, Xiaomi 15 Ultra delivers substantially better value and capability.
Who Should Buy
Buy the Apple iPhone 12 if…
- →First iPhone with 5G connectivity
- →Ceramic Shield front cover is four times more drop-resistant
- →Flat-edge design is comfortable and stylish
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
Apple iPhone 12
Pros
- First iPhone with 5G connectivity
- Ceramic Shield front cover is four times more drop-resistant
- Flat-edge design is comfortable and stylish
- A14 Bionic delivers excellent performance and efficiency
- Dolby Vision HDR video recording is a first for any smartphone
Cons
- 60Hz display when competitors offered 90Hz or 120Hz
- Small 2815 mAh battery offers mediocre battery life
- 64 GB base storage is inadequate in 2020
- Lightning port instead of USB-C
- No telephoto lens — only dual camera
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 | Apple iPhone 12 | Xiaomi 15 Ultra |
|---|---|---|
| Software | iOS 14 | Android 15 (HyperOS 2) |
| Body | ||
| Weight | 164 g | 229 g |
| Material | Aluminum frame, Ceramic Shield front | Titanium frame, Gorilla Glass Victus 2 |
| IP rating | IP68 | IP68 |
| Dimensions | 146.7 x 71.5 x 7.4 mm | 161.1 x 75.2 x 9.17 mm |
| Camera | ||
| Main camera | 12 MP, f/1.6, OIS | 50 MP, f/1.63, OIS (1-inch sensor) |
| Front camera | 12 MP TrueDepth, f/2.2 | 32 MP, f/2.0 |
| Video | 4K@60fps, Dolby Vision HDR | 8K@30fps, 4K@120fps |
| Ultrawide | 12 MP, f/2.4 | 50 MP, f/2.0, 128-degree |
| Telephoto | — | 200 MP, f/2.6, 5x periscope optical zoom, OIS |
| Memory | ||
| RAM | 4 GB | 16 GB |
| Storage options | 64 GB, 128 GB, 256 GB | 256 GB, 512 GB, 1 TB |
| Battery | ||
| Capacity | 2815 mAh | 5810 mAh |
| Charging | 20W wired | 90W wired |
| Wireless charging | 15W MagSafe | 50W wireless |
| Display | ||
| Size | 6.1 inches | 6.73 inches |
| Type | Super Retina XDR OLED | LTPO AMOLED |
| Resolution | 2532 x 1170 | 3200 x 1440 |
| Refresh rate | 60Hz | 1-120Hz |
| Brightness (nits) | 1200 | 3200 |
| Processor | ||
| CPU | Hexa-core (2x3.1 GHz + 4x1.8 GHz) | Octa-core (2x4.32 GHz + 6x3.53 GHz) |
| GPU | Apple GPU (4-core) | Adreno 830 |
| Chipset | Apple A14 Bionic | Qualcomm Snapdragon 8 Elite |
| Connectivity | ||
| 5G | ||
| NFC | ||
| USB | Lightning | USB-C 3.2 |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 7 |
| Bluetooth | 5.0 | 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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