Samsung Galaxy S26 Ultra vs Xiaomi 15
The Verdict
The Samsung Galaxy S26 Ultra and Xiaomi 15 sit in the same category and end up appealing to slightly different buyers. The Xiaomi 15 is the cheaper of the two at $599 versus $1,300, a difference of about $701. The Samsung Galaxy S26 Ultra is the newer release, which usually means a faster chipset and longer software support. Samsung Galaxy S26 Ultra stands out for 200mp main + 50mp 5x periscope telephoto, while Xiaomi 15 is praised for snapdragon 8 elite delivers top-tier performance. Use the side-by-side spec table below to compare cameras, displays, battery life and connectivity in detail and decide which one fits your priorities.
Who Should Buy
Buy the Samsung Galaxy S26 Ultra if…
- →200MP main + 50MP 5x periscope telephoto
- →Privacy Display limits side-angle viewing
- →S Pen built in
Buy the Xiaomi 15 if…
- →Snapdragon 8 Elite delivers top-tier performance
- →Triple 50MP camera system with Leica optics at a competitive price
- →Compact 6.36-inch size with flagship specs — rare in 2025
Pros & Cons
Samsung Galaxy S26 Ultra
Pros
- 200MP main + 50MP 5x periscope telephoto
- Privacy Display limits side-angle viewing
- S Pen built in
- 0.3mm thinner than S25 Ultra at 214g
- 16GB RAM with up to 1TB
Cons
- $1300 starting price
- Same 45W charging as S25 Ultra
- Marginal upgrade if coming from S25 Ultra
Xiaomi 15
Pros
- Snapdragon 8 Elite delivers top-tier performance
- Triple 50MP camera system with Leica optics at a competitive price
- Compact 6.36-inch size with flagship specs — rare in 2025
- Blazing 90W wired charging fills the 5400 mAh battery in under 30 minutes
- 3200-nit peak brightness is excellent for outdoor visibility
Cons
- HyperOS still carries some bloatware and ad placements
- 2.6x telephoto lacks the reach of 5x periscope competitors
- Limited global availability compared to Samsung and Apple
- No headphone jack
Full Specifications
| Spec | Samsung Galaxy S26 Ultra | Xiaomi 15 |
|---|---|---|
| Software | Android 16, One UI 8 | Android 15 (HyperOS 2) |
| Body | ||
| Weight | 214 g | 191 g |
| Material | Titanium frame, Gorilla Armor 2 | Aluminum frame, Gorilla Glass Victus 2 |
| IP rating | IP68 | IP68 |
| Dimensions | 162 x 77 x 8.2 mm | 152.3 x 71.2 x 8.08 mm |
| Camera | ||
| Main camera | 200 MP, f/1.7, OIS | 50 MP, f/1.6, OIS (Light Fusion 900 sensor) |
| Front camera | 12 MP, f/2.2 | 32 MP, f/2.0 |
| Video | 8K@30fps, 4K@120fps | 8K@24fps, 4K@60fps |
| Telephoto | 50 MP, f/2.6, 5x optical zoom, 10x optical-quality zoom | 50 MP, f/2.0, 2.6x optical zoom |
| Ultrawide | 50 MP, f/2.2 | 50 MP, f/2.2, 115-degree |
| Memory | ||
| RAM | 16 GB | 12 GB |
| Storage options | 256 GB, 512 GB, 1 TB | 256 GB, 512 GB |
| Battery | ||
| Capacity | 5000 mAh | 5400 mAh |
| Charging | 45W wired | 90W wired |
| Wireless charging | 15W wireless | 50W wireless |
| Display | ||
| Size | 6.9 inches | 6.36 inches |
| Type | Dynamic AMOLED 2X | LTPO AMOLED |
| Resolution | 1440 x 3120 | 2670 x 1200 |
| Refresh rate | 120Hz | 1-120Hz |
| Brightness (nits) | 2600 | 3200 |
| Processor | ||
| CPU | Octa-core | Octa-core (2x4.32 GHz + 6x3.53 GHz) |
| GPU | Adreno | Adreno 830 |
| Chipset | Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite |
| Connectivity | ||
| 5G | ||
| NFC | ||
| USB | USB-C 3.2 | USB-C 3.2 |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.4 | 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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