Choosing between theXiaomi 15 Ultra vs Samsung Galaxy S25 Ultracan be tricky, especially when both phones offer top-tier features. If you are someone who loves fast charging and a super bright screen, the
Xiaomi 15 Ultramight be your perfect match. It charges incredibly fast, so you spend less time plugged in, and its display is great for watching videos or gaming even in bright sunlight.
On the other hand, the
Samsung Galaxy S25 Ultrais a solid choice if you want a phone that stays updated for years and takes amazing zoom photos. It’s built for people who want a reliable, long-lasting device with a clean and smooth user experience.
Both phones come with powerful processors, great cameras, and beautiful designs. But your choice depends on what matters more to you—speed and display (Xiaomi) or software support and camera zoom (Samsung). Always check the
latest offers on Samsung or Xiaomi smartphones before making your next purchase on Easy EMIs from Bajaj Finserv. Let us understand the key differences between the two flagship devices so that you can pick the one that fits your needs best.
Xiaomi 15 Ultra vs Samsung Galaxy S25 Ultra - Technical Specifications
The Xiaomi 15 Ultra and Samsung Galaxy S25 Ultra are flagship smartphones that push the boundaries in performance, camera technology, and display quality. While both offer top-tier specs, they differ in ecosystem features, camera tuning, and charging capabilities. Here's a clear comparison to help you decide which one suits your needs better.
General
Both the devices run on the latest Android versions with long-term software support. Xiaomi uses its customHyperOS, while Samsung offers a refinedOne UIexperience with extended ecosystem integration.
| Features | Xiaomi 15 Ultra | Samsung Galaxy S25 Ultra |
| Launch date | February 27, 2025 (Official) | January 22, 2025 (Official) |
| Operating System | Android (HyperOS 2) | Android (One UI) |
| OS updates | 4 years | 4 years |
| Security updates | 5 years | 7 years (until Jan 2032) |
| Weight | 229g | 218g |
| Dimensions (HxWxT) | 161.3 x 75.3 x 9.48 mm | 162.8 x 77.6 x 8.2 mm |
| Water resistance | IP68 | IP68 |
Performance and Hardware
Both phones are powered by cutting-edge chipsets and offer excellent performance for gaming, multitasking, and AI tasks.
| Features | Xiaomi 15 Ultra | Samsung Galaxy S25 Ultra |
| Processor | Snapdragon 8 Elite (3nm) | Octa-Core (up to 4.47GHz) |
| Graphics | Adreno GPU | Integrated GPU |
| RAM | 16GB LPDDR5X | 12GB |
| Storage | 512GB UFS 4.1 | 256GB/512GB/1TB |
| Cooling | 3D Dual-Channel IceLoop | Standard vapor chamber |
| Security | Ultrasonic in-screen fingerprint | Ultrasonic in-screen fingerprint |
| Sensors | Full sensor suite incl. barometer, flicker sensor | Full sensor suite incl. UWB |
| Audio | Stereo speakers, Dolby Atmos | Stereo speakers |
Display
Both phones feature stunning AMOLED displays with high brightness and adaptive refresh rates. Xiaomi leads in peak brightness, while Samsung supports S Pen input.
| Features | Xiaomi 15 Ultra | Samsung Galaxy S25 Ultra |
| Display type | WQHD+ AMOLED, Quad Curve | Dynamic AMOLED 2X |
| Size | 6.73" (17.09 cm) | 6.86" (17.42 cm) |
| Resolution | 3200 x 1440 | 3120 x 1440 |
| Refresh rate | 1–120Hz LTPO | 120Hz |
| Peak brightness | 3200 nits | ~2600 nits |
| S Pen support | No | Yes |
| Display type | WQHD+ AMOLED, Quad Curve | Dynamic AMOLED 2X |
Camera
Xiaomi partners with Leica for professional-grade optics, while Samsung focuses on versatility and zoom with its Adaptive Pixel sensor.
| Features | Xiaomi 15 Ultra | Samsung Galaxy S25 Ultra |
| Main camera | 50MP (LYT-900, f/1.63) | 200MP (f/1.7) |
| Ultra-wide | 50MP (115° FOV) | 50MP |
| Telephoto | 50MP (70mm) + 200MP (100mm) | 50MP (3x) + 10MP (10x) |
| Front camera | 32MP | 12MP |
| Video (Rear) | 8K @ 30fps, 4K @ 120fps | 8K @ 60fps, 4K @ 120fps |
| Video (Front) | 4K @ 60fps | 4K @ 60fps |
| Camera features | Leica filters, UltraRAW, ProFocus | Adaptive Pixel Zoom, Nightography |
Connectivity and network compatibility
Both phones support global 5G, dual SIM, and advanced wireless standards.
| Features | Xiaomi 15 Ultra | Samsung Galaxy S25 Ultra |
| SIM Configuration | Dual SIM (nano + eSIM) | Dual SIM / Dual eSIM |
| 5G Bands | Extensive global support | Extensive global support |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 7 (802.11be) |
| Bluetooth | v6.0 | v5.4 |
| NFC | Yes | Yes |
| UWB | No | Yes |
Battery and charging
Xiaomi leads in battery capacity and charging speed, while Samsung focuses on endurance and ecosystem compatibility.
| Features | Xiaomi 15 Ultra | Samsung Galaxy S25 Ultra |
| Capacity | 5410mAh | 5000mAh |
| Wired charging | 90W | Fast charging (likely 45W) |
| Wireless charging | 80W | Yes (likely 15W) |
| Reverse charging | Yes | Yes |
Xiaomi 15 Ultra vs Samsung Galaxy S25 Ultra Benchmark
Both the Xiaomi 15 Ultra and Samsung Galaxy S25 Ultra are powered by next-gen flagship chipsets, delivering exceptional performance across gaming, multitasking, and AI-driven tasks. While Xiaomi pushes the limits with higher RAM and advanced cooling, Samsung offers a slightly higher CPU clock speed and better software optimization.
If you prioritizeraw performance and thermal efficiency, theXiaomi 15 Ultrais a strong contender. If you valueecosystem integration and long-term software support, theGalaxy S25 Ultrais a solid choice.
| Test | Xiaomi 15 Ultra | Samsung Galaxy S25 Ultra |
| AnTuTu Score | ~1,820,000 | ~1,790,000 |
| Geekbench (Single-Core) | ~2,250 | ~2,280 |
| Geekbench (Multi-Core) | ~7,200 | ~7,100 |
| 3DMark (Wild Life Extreme) | ~4,950 | ~4,800 |
Note: Benchmark scores are approximate and may vary based on software updates and thermal conditions.
Xiaomi 15 Ultra vs Samsung Galaxy S25 Ultra - Price comparison
TheSamsung Galaxy S25 Ultrais priced higher, reflecting its premium ecosystem features like S Pen support, UWB, and extended software updates. TheXiaomi 15 Ultra, while slightly more affordable, offers superior charging speeds, more RAM/storage, and Leica-powered camera hardware.
| Model | Price (Rs.) |
| Xiaomi 15 Ultra | 1,09,999 |
| Samsung Galaxy S25 Ultra | 1,29,999 |
Disclaimer: Each model's features, availability, and pricing are subject to change and may vary. For the most accurate and up-to-date information, please visit the official website.
Explore Xiaomi 15 Ultra vs Samsung Galaxy S25 Ultra
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