Samsung Galaxy S24 vs Xiaomi 15 Ultra
The Verdict
Samsung's Galaxy S24 delivers excellent flagship performance at a more accessible $799.99 price point, featuring a sharp 6.2-inch Dynamic AMOLED display with 2600 nits brightness, capable 50MP main camera with OIS, and reliable all-day battery life from its 4000 mAh cell. Xiaomi's 15 Ultra commands premium positioning at $999, distinguished by its larger 6.73-inch QHD display (3200x1440), substantially more powerful Snapdragon 8 Elite processor, and camera system anchored by a 1-inch 50MP sensor plus exceptional 200MP 5x periscope zoom. The 15 Ultra's 5810 mAh battery and blazing-fast 90W charging significantly outpace Samsung's 25W solution. However, Galaxy S24 owners gain a thinner, lighter device (7.6mm, 167g) with better everyday practicality and three-year price advantage. For photographers demanding zoom versatility and raw processing power, Xiaomi excels; for balanced users prioritizing value and design, Samsung remains the smarter choice.
Who Should Buy
Buy the Samsung Galaxy S24 if…
- →Compact form factor with flagship features
- →Galaxy AI suite including live translate
- →Bright 2600-nit AMOLED display
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
Samsung Galaxy S24
Pros
- Compact form factor with flagship features
- Galaxy AI suite including live translate
- Bright 2600-nit AMOLED display
- Seven years of software updates
- IP68 dust and water resistance
Cons
- Only 8 GB RAM
- Slow 25W charging
- Wi-Fi 6E instead of Wi-Fi 7
- Smaller battery than rivals
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 | Samsung Galaxy S24 | Xiaomi 15 Ultra |
|---|---|---|
| Software | Android 14, One UI 6.1 | Android 15 (HyperOS 2) |
| Body | ||
| Weight | 167 g | 229 g |
| Material | Aluminum frame, Gorilla Glass Victus 2 | Titanium frame, Gorilla Glass Victus 2 |
| IP rating | IP68 | IP68 |
| Dimensions | 147.0 x 70.6 x 7.6 mm | 161.1 x 75.2 x 9.17 mm |
| Camera | ||
| Main camera | 50 MP, f/1.8, OIS | 50 MP, f/1.63, OIS (1-inch sensor) |
| Front camera | 12 MP, f/2.2 | 32 MP, f/2.0 |
| Video | 8K@30fps, 4K@60fps | 8K@30fps, 4K@120fps |
| Telephoto | 10 MP 3x optical | 200 MP, f/2.6, 5x periscope optical zoom, OIS |
| Ultrawide | 12 MP, f/2.2 | 50 MP, f/2.0, 128-degree |
| Memory | ||
| RAM | 8 GB | 16 GB |
| Storage options | 128 GB, 256 GB, 512 GB | 256 GB, 512 GB, 1 TB |
| Battery | ||
| Capacity | 4000 mAh | 5810 mAh |
| Charging | 25W wired | 90W wired |
| Wireless charging | 15W | 50W wireless |
| Display | ||
| Size | 6.2 inches | 6.73 inches |
| Type | Dynamic AMOLED 2X LTPO | LTPO AMOLED |
| Resolution | 2340 x 1080 | 3200 x 1440 |
| Refresh rate | 120Hz | 1-120Hz |
| Brightness (nits) | 2600 | 3200 |
| Processor | ||
| CPU | Deca-core (1x3.2 GHz + 2x2.9 GHz + 3x2.6 GHz + 4x1.95 GHz) | Octa-core (2x4.32 GHz + 6x3.53 GHz) |
| GPU | Xclipse 940 | Adreno 830 |
| Chipset | Exynos 2400 | Qualcomm Snapdragon 8 Elite |
| Connectivity | ||
| 5G | ||
| NFC | ||
| USB | USB-C 3.2 | USB-C 3.2 |
| Wi-Fi | Wi-Fi 6E | Wi-Fi 7 |
| Bluetooth | 5.3 | 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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