This article will provide a comprehensive comparison between the Samsung Galaxy S25 and the Xiaomi 15, two of the most anticipated smartphones of the year.
The Samsung Galaxy S25, set to launch on February 7, 2025, promises to deliver cutting-edge technology and features. With its introduction, Samsung aims to position the Galaxy S25 as a "true AI companion," emphasizing its capabilities in artificial intelligence and machine learning. This model is expected to cater to users looking for a high-performance device that integrates seamlessly into their daily lives.
On the other hand, Xiaomi has already launched the Xiaomi 15 in October 2024, primarily in China, with expectations for a global rollout soon. Priced competitively, starting at approximately $617, the Xiaomi 15 aims to attract budget-conscious consumers without compromising on performance or features.
As we delve deeper into this comparison, we will explore various aspects such as pricing and availability, design and build quality, display features, performance specifications, camera systems, battery life, software experience, additional features, and ultimately conclude with insights on which device might best suit different user needs. This analysis will help potential buyers make informed decisions as they navigate the evolving landscape of flagship smartphones in 2025.
2. Pricing and Availability
When considering a new smartphone, pricing and availability are crucial factors for consumers. Both the Samsung Galaxy S25 and the Xiaomi 15 offer distinct pricing strategies that reflect their brand positioning and target audiences.
Launch Dates
- Samsung Galaxy S25: Officially announced on February 7, 2025, with pre-orders expected to start shortly after the launch event. The global availability is anticipated within a few weeks following the announcement.- Xiaomi 15: Launched in October 2024, the Xiaomi 15 has already been available in select markets, particularly in China, with plans for broader international distribution.
Pricing Comparison
- Samsung Galaxy S25: The starting price for the Galaxy S25 is projected to be around $999. This price point aligns with Samsung's strategy of positioning its flagship devices as premium offerings, equipped with advanced technology and features.- Xiaomi 15: In contrast, the Xiaomi 15 starts at approximately $617, making it a more budget-friendly option. Xiaomi has built its reputation on providing high-quality smartphones at competitive prices, and the Xiaomi 15 reflects this ethos.
Regional Pricing Variations
- Both devices will likely see variations in pricing based on local taxes, tariffs, and market conditions. For instance, while the Galaxy S25 may maintain a premium price across most regions, the Xiaomi 15 could be even more affordable in markets where Xiaomi has a strong presence.Availability Channels
- Samsung Galaxy S25: Consumers can expect to find the Galaxy S25 through major carriers, electronics retailers, and online platforms. Samsung's extensive distribution network ensures that the device will be widely accessible.- Xiaomi 15: Initially available through Xiaomi's official online store and select retailers, the Xiaomi 15 is expected to expand its availability as it rolls out to international markets. Xiaomi's growing presence in regions like Europe and India will likely enhance accessibility.
Conclusion
In summary, while the Samsung Galaxy S25 targets consumers looking for a premium experience willing to invest more in their device, the Xiaomi 15 appeals to those seeking value without sacrificing performance. This pricing strategy reflects each brand's unique approach to capturing market share in an increasingly competitive landscape. As we move forward in this comparison, we'll explore how these devices differentiate themselves beyond just price.3. Design and Build Quality
The design and build quality of a smartphone play a significant role in user experience, influencing not only aesthetics but also durability and ergonomics. Both the Samsung Galaxy S25 and the Xiaomi 15 present compelling designs, each reflecting their brand identities while catering to modern consumer preferences.
Dimensions and Weight
- Samsung Galaxy S25: The Galaxy S25 features a sleek profile with dimensions of approximately 151.5 x 71.5 x 7.6 mm and weighs around 171 grams. This lightweight design enhances portability, making it comfortable for one-handed use.- Xiaomi 15: In comparison, the Xiaomi 15 measures about 152.8 x 71.5 x 8.2 mm and weighs slightly more at 185 grams. While still manageable, its slightly thicker body may offer a more substantial feel in hand.
Materials Used in Construction
- Samsung Galaxy S25: Samsung continues its tradition of premium materials with the Galaxy S25, utilizing an aluminum frame coupled with Gorilla Glass Victus on both the front and back. This combination not only enhances durability but also gives the device a premium look and feel.- Xiaomi 15: The Xiaomi 15 also boasts a high-quality build, featuring an aluminum frame with Gorilla Glass on the front and back. Xiaomi has introduced unique finishes, including matte and glossy options, which cater to diverse aesthetic preferences.
Color Options
- Samsung Galaxy S25: Samsung typically offers a range of color options for its flagship devices. The Galaxy S25 is expected to come in classic colors such as Phantom Black, Phantom Silver, and new vibrant hues like Sky Blue and Sunset Pink, appealing to a broad audience.- Xiaomi 15: Xiaomi tends to embrace bold colors, and the Xiaomi 15 is no exception. It is available in striking colors such as Starry Black, Moonlight White, and vibrant shades like Electric Blue and Crimson Red, allowing users to express their individuality.
Ergonomics and User Experience
- Both devices prioritize user comfort, featuring rounded edges that enhance grip. The placement of buttons, including power and volume controls, is strategically designed for easy access.- The Galaxy S25's slightly lighter weight may make it more comfortable for prolonged use, while the Xiaomi 15’s design elements may appeal to users looking for a more robust feel.
Conclusion
In conclusion, both the Samsung Galaxy S25 and the Xiaomi 15 showcase impressive design philosophies that cater to different consumer tastes. While Samsung leans towards a classic premium aesthetic, Xiaomi embraces bold colors and finishes that stand out in the market. As we continue our comparison, we'll delve into the display features of these two flagship smartphones, exploring how they enhance user interaction and multimedia experiences.4. Display Features
The display is one of the most critical components of any smartphone, as it directly affects the user experience, from media consumption to gaming and everyday tasks. Both the Samsung Galaxy S25 and the Xiaomi 15 feature advanced display technologies that promise vibrant visuals and smooth interactions. Let’s take a closer look at how these two devices compare in terms of display features.
Screen Size and Type
- Samsung Galaxy S25: The Galaxy S25 boasts a 6.2-inch Dynamic AMOLED 2X display, known for its rich colors and deep blacks. This technology provides an immersive viewing experience, making it ideal for streaming videos and playing games.- Xiaomi 15: The Xiaomi 15 features a slightly larger 6.3-inch OLED display. While both devices utilize OLED technology, Xiaomi's implementation focuses on delivering high contrast ratios and vibrant colors, ensuring a visually appealing experience.
Resolution
- Samsung Galaxy S25: The display offers a resolution of 2400 x 1080 pixels, resulting in a pixel density of approximately 425 ppi. This ensures crisp text and detailed images, enhancing overall clarity.- Xiaomi 15: Similarly, the Xiaomi 15 also features a resolution of 2400 x 1080 pixels, providing an identical pixel density. This means users can expect comparable sharpness and detail on both devices.
Refresh Rate and Peak Brightness
- Samsung Galaxy S25: One of the standout features of the Galaxy S25 is its 120Hz refresh rate, which allows for smoother scrolling and more responsive touch interactions. Additionally, it supports peak brightness levels of up to 1750 nits, making it highly usable even in bright sunlight.- Xiaomi 15: The Xiaomi 15 also supports a 120Hz refresh rate, ensuring fluid animations and transitions. However, it achieves a peak brightness of around 1500 nits, which is still impressive but slightly lower than that of the Galaxy S25.
Display Protection
- Both devices come equipped with robust screen protection:- Samsung Galaxy S25: Features Gorilla Glass Victus+, providing enhanced durability against scratches and drops.
- Xiaomi 15: Also utilizes Gorilla Glass Victus, ensuring that the display can withstand daily wear and tear.
Additional Features
- Both smartphones offer HDR10+ support, allowing users to enjoy high dynamic range content with improved contrast and color accuracy.- The displays on both devices are equipped with in-display fingerprint sensors for convenient unlocking.
Conclusion
In summary, both the Samsung Galaxy S25 and Xiaomi 15 deliver exceptional display quality, with minor differences that may appeal to different user preferences. The Galaxy S25 edges out slightly in terms of peak brightness, while both devices provide an immersive viewing experience with their high refresh rates. As we move forward in our comparison, we will explore the performance specifications of these two flagship smartphones, assessing their capabilities for demanding tasks and applications.5. Performance Specifications
Performance is a crucial aspect of any flagship smartphone, impacting everything from multitasking capabilities to gaming experiences. Both the Samsung Galaxy S25 and the Xiaomi 15 are equipped with cutting-edge hardware designed to deliver top-tier performance. Let’s delve into the specifications that power these devices.
Processor
- Samsung Galaxy S25: The Galaxy S25 is powered by the Exynos 2400 chipset (in select regions) or the Snapdragon 8 Gen 3 (in others), both of which offer significant improvements in processing power and energy efficiency compared to their predecessors. The Snapdragon variant is particularly noted for its superior GPU performance, making it ideal for gaming and graphic-intensive applications.- Xiaomi 15: The Xiaomi 15 features the Snapdragon 8 Gen 3 processor across all markets, ensuring consistent performance globally. This chipset is known for its high efficiency and powerful performance, capable of handling demanding tasks with ease.
RAM and Storage Options
- Samsung Galaxy S25: The Galaxy S25 comes with multiple RAM configurations, offering options of 8GB or 12GB of RAM, paired with storage options of 128GB, 256GB, or 512GB. This versatility allows users to choose a configuration that best suits their needs, whether for casual use or intensive multitasking.- Xiaomi 15: The Xiaomi 15 also provides a range of RAM options, available in 8GB or 12GB, with storage choices of 256GB or 512GB. However, it does not offer a base model with lower storage capacity, which may appeal to users who prioritize higher storage from the outset.
Benchmark Performance
- Both devices are expected to perform exceptionally well in benchmark tests:- Early benchmarks indicate that both the Exynos 2400 and Snapdragon 8 Gen 3 chipsets deliver impressive scores in CPU and GPU tests, ensuring smooth performance across various applications.
- In gaming scenarios, both smartphones are optimized for high frame rates and graphics settings, making them suitable for mobile gamers who demand top performance.
Thermal Management
- Both devices incorporate advanced cooling technologies to manage heat during prolonged usage:- Samsung Galaxy S25: Features a vapor chamber cooling system designed to dissipate heat effectively during intensive tasks such as gaming or video rendering.
- Xiaomi 15: Utilizes a multi-layer graphite cooling system that helps maintain optimal temperatures even under heavy loads.
Software Optimization
- Both smartphones run on their respective operating systems:- Samsung Galaxy S25: Ships with One UI 5.1, based on Android 14, which enhances user experience through intuitive design and additional features tailored for productivity and customization.
- Xiaomi 15: Comes with MIUI 14, also based on Android 14. MIUI is known for its rich feature set and customization options, appealing to users who enjoy personalizing their devices.
Conclusion
In conclusion, both the Samsung Galaxy S25 and Xiaomi 15 offer robust performance specifications that cater to demanding users. While both devices utilize the Snapdragon 8 Gen 3 processor (with Samsung offering an alternative chipset), they provide ample RAM and storage configurations to suit various needs. As we continue our comparison, we will explore the camera systems of these two flagship smartphones, examining their capabilities in photography and videography.6. Camera Systems
The camera system is often a deciding factor for consumers when choosing a smartphone, as it directly impacts photography and videography experiences. Both the Samsung Galaxy S25 and the Xiaomi 15 are equipped with advanced camera technologies designed to capture stunning images and videos. Let’s take a closer look at how their camera systems compare.
Rear Camera Setup
- Samsung Galaxy S25: The Galaxy S25 features a versatile triple-camera setup:- Main Camera: 50 MP wide sensor with f/1.8 aperture, offering excellent low-light performance and detail.
- Ultra-Wide Camera: 12 MP sensor with a 120-degree field of view, perfect for landscape shots and group photos.
- Telephoto Camera: 10 MP sensor with 3x optical zoom, allowing for detailed close-ups without loss of quality.
- Xiaomi 15: The Xiaomi 15 also boasts a powerful triple-camera configuration:
- Main Camera: 50 MP wide sensor with f/1.9 aperture, designed for high-resolution images and strong low-light capabilities.
- Ultra-Wide Camera: 12 MP sensor, similarly offering a wide field of view for expansive shots.
- Telephoto Camera: 10 MP sensor with 5x optical zoom, providing enhanced zoom capabilities for detailed distant subjects.
Front Camera
- Samsung Galaxy S25: The front-facing camera is a 12 MP sensor with f/2.2 aperture, equipped with features like Dual Pixel autofocus and HDR capabilities, making it suitable for high-quality selfies and video calls.- Xiaomi 15: The Xiaomi 15 features a slightly higher resolution front camera at 20 MP, also with f/2.2 aperture. This allows for sharper selfies and improved performance in various lighting conditions.
Photography Features
- Both devices come packed with advanced photography features:- Samsung Galaxy S25:
- Night Mode: Enhanced low-light photography capabilities.
- AI Scene Optimizer: Automatically adjusts settings based on the scene being captured.
- Pro Mode: Allows manual control over settings like ISO, shutter speed, and exposure.
- Xiaomi 15:
- Night Mode: Similar low-light enhancements to capture clear images in dark environments.
- AI Beautify: Offers various filters and enhancements for portraits.
- Pro Mode: Provides manual controls for photography enthusiasts.
Video Capabilities
- Samsung Galaxy S25: Supports video recording up to 8K at 30fps, along with features like Super Steady stabilization for smooth video capture, making it ideal for vlogging or action shots.- Xiaomi 15: Also capable of recording video in 8K at 30fps, the Xiaomi 15 includes advanced stabilization features and supports HDR video recording, enhancing the overall quality of video content.
Conclusion
In summary, both the Samsung Galaxy S25 and Xiaomi 15 offer impressive camera systems that cater to photography enthusiasts. While both feature similar main sensors, the Xiaomi 15 provides an advantage in telephoto capabilities with its higher optical zoom. Additionally, both devices excel in video recording features, making them suitable for content creators. As we proceed in our comparison, we will examine battery life and charging speed—two essential aspects that significantly affect daily usability.7. Battery Life and Charging Speed
Battery life and charging speed are critical considerations for smartphone users, especially for those who rely on their devices throughout the day. Both the Samsung Galaxy S25 and the Xiaomi 15 are designed to provide robust battery performance, but they differ in capacity and charging technologies. Let’s explore how these two flagship smartphones compare in this area.
Battery Capacity
- Samsung Galaxy S25: The Galaxy S25 is equipped with a 4000mAh battery. While this capacity is slightly lower than that of its competitor, Samsung's optimization strategies through software and hardware integration aim to extend battery life effectively.- Xiaomi 15: The Xiaomi 15 features a larger 5400mAh battery, which provides a significant advantage in terms of longevity. This larger capacity is particularly beneficial for heavy users who engage in gaming, streaming, or multitasking.
Real-World Battery Life
- Samsung Galaxy S25: With efficient power management, users can expect a full day of usage under normal conditions. The combination of the AMOLED display and software optimizations helps conserve battery life during media consumption and general use.- Xiaomi 15: Thanks to its larger battery, the Xiaomi 15 typically offers longer usage times, often exceeding a day and a half on moderate use. This makes it an attractive option for users who prioritize extended battery life.
Charging Speed
- Samsung Galaxy S25: The Galaxy S25 supports fast charging at 45W, allowing users to charge their device quickly when needed. Additionally, it offers wireless charging capabilities at 15W and reverse wireless charging at 4.5W, enabling users to charge other devices wirelessly.- Xiaomi 15: The Xiaomi 15 takes charging speed a step further with support for 120W wired fast charging, which can charge the device from 0% to 100% in approximately 20 minutes—a remarkable feature for users in a hurry. It also supports 50W wireless charging, making it one of the fastest options available on the market.
Battery Management Features
- Both devices come with software features designed to optimize battery usage:- Samsung Galaxy S25: Includes adaptive battery management that learns user habits to conserve power when needed.
- Xiaomi 15: Offers similar features, along with options for battery saver modes that restrict background activity to extend battery life during critical times.
Conclusion
In conclusion, while both the Samsung Galaxy S25 and Xiaomi 15 offer commendable battery performance, the Xiaomi 15 stands out with its larger capacity and ultra-fast charging capabilities. The Galaxy S25, however, provides adequate performance for most users with efficient power management. As we continue our comparison, we will examine the software experience on both devices, focusing on user interface design and unique features that enhance usability.8. Software Experience
The software experience on a smartphone significantly influences usability, customization, and overall satisfaction. Both the Samsung Galaxy S25 and the Xiaomi 15 run on Android, but they come with distinct user interfaces and features that cater to different types of users. Here’s a detailed comparison of their software experiences.
Operating System
- Samsung Galaxy S25: The Galaxy S25 will ship with One UI 5.1, based on Android 14. One UI is known for its user-friendly interface, offering a range of customization options and features designed to enhance productivity. Samsung has integrated various AI tools into One UI, allowing for smarter interactions and personalized experiences[1][2].- Xiaomi 15: The Xiaomi 15 comes with MIUI 14, also based on Android 14. MIUI is recognized for its vibrant design and extensive customization capabilities, providing users with various themes, icon packs, and layout options. Xiaomi emphasizes a smooth user experience with features like floating windows and enhanced multitasking capabilities[1][2].
Unique Features
- Samsung Galaxy S25:- AI Toolkit: The Galaxy S25 includes Samsung's AI toolkit, which enhances functionalities such as Circle to Search, Drawing Assist, and the new Now Bar for quick access to frequently used apps directly from the lock screen. This integration aims to provide a more intuitive user experience[1].
- Google Gemini Integration: Users can access Google’s Gemini AI directly by pressing the side button, enhancing productivity through advanced AI capabilities[1].
- Xiaomi 15:
- AI Writing and Subtitles: Xiaomi has incorporated AI features like AI writing assistance for text refinement and real-time translation through AI subtitles, which can be particularly useful in meetings or conversations[1].
- Customization Options: MIUI allows for extensive personalization, making it easy for users to tailor their devices according to their preferences.
Performance and Updates
- Both devices are expected to receive regular software updates, ensuring users have access to the latest features and security patches:- Samsung Galaxy S25: Samsung typically provides up to four years of major Android updates and five years of security patches, ensuring longevity in software support[2].
- Xiaomi 15: Xiaomi also commits to regular updates but may not match Samsung's duration for major updates. However, it still offers a solid support timeline for its flagship devices.
Conclusion
In conclusion, both the Samsung Galaxy S25 and Xiaomi 15 offer robust software experiences tailored to their respective user bases. The Galaxy S25 focuses on integrating AI tools for enhanced productivity and ease of use within One UI, while the Xiaomi 15 emphasizes customization and vibrant design in MIUI. As we move forward in our comparison, we will explore additional features and connectivity options that both devices offer, highlighting what sets them apart in terms of functionality.Citations:
[1] https://www.trustedreviews.com/versus/samsung-galaxy-s25-vs-xiaomi-15-4585561
[2] https://www.phonearena.com/phones/compare/Samsung-Galaxy-S25,Xiaomi-15/phones/12340,12457
[3] https://www.gsmarena.com/compare.php3?idPhone1=13610&idPhone2=13472
[4] https://www.gadgets360.com/compare-samsung-galaxy-s25-ultra-130577-vs-xiaomi-15-129073
[5] https://codingmall.com/knowledge-base/25-global/215445-what-are-the-main-differences-in-design-between-the-xiaomi-15-pro-and-the-galaxy-s25-ultra
[6] https://www.gizmochina.com/2024/08/27/xiaomi-15-ultra-vs-galaxy-s25-ultra-vs-find-x8-ultra-as-january-2025-launch-tipped/
[7] https://phonebolee.com/Samsung-Galaxy-S25-vs-Xiaomi-15/
[8] https://www.smartprix.com/mobiles/xiaomi_15_vs_samsung_galaxy_s25-cpd1b5xrl30j_pd10ss8kmvt.php
9. Additional Features and Connectivity
In today's smartphone landscape, additional features and connectivity options can significantly enhance the overall user experience. Both the Samsung Galaxy S25 and the Xiaomi 15 come equipped with a variety of features that cater to diverse user needs. Let’s explore these aspects in detail.
Connectivity Options
- Samsung Galaxy S25:- 5G Support: The Galaxy S25 supports both sub-6GHz and mmWave 5G bands, ensuring fast mobile data speeds and improved connectivity in various environments.
- Wi-Fi 7: This device is equipped with Wi-Fi 7 capabilities, offering faster speeds and lower latency for online activities, making it ideal for gaming and streaming.
- Bluetooth 5.3: The latest Bluetooth version enhances connectivity with peripherals, providing better range and battery efficiency.
- NFC and Ultra-Wideband (UWB): NFC support allows for contactless payments, while UWB technology enables precise location tracking for compatible devices.
- Xiaomi 15:
- 5G Support: Similar to the Galaxy S25, the Xiaomi 15 supports a wide range of 5G bands for optimal performance in various regions.
- Wi-Fi 7: The Xiaomi 15 also features Wi-Fi 7 support, ensuring high-speed internet connectivity.
- Bluetooth 5.3: Like its competitor, it includes Bluetooth 5.3 for improved wireless connections.
- NFC Support: The Xiaomi 15 supports NFC for mobile payments and quick pairing with other devices.
Additional Features
- Samsung Galaxy S25:- IP68 Rating: The Galaxy S25 is water and dust resistant, rated IP68, meaning it can withstand submersion in water up to a certain depth for a limited time—ideal for users who lead active lifestyles.
- Stereo Speakers: The device features stereo speakers tuned by AKG, providing an immersive audio experience for media consumption.
- Xiaomi 15:
- IR Blaster: The Xiaomi 15 includes an IR blaster, allowing it to function as a remote control for various household appliances—a unique feature not found in many flagship devices.
- Dual Stereo Speakers: Similar to the Galaxy S25, it also offers dual stereo speakers optimized for enhanced sound quality.
Security Features
- Samsung Galaxy S25:- In-Display Fingerprint Sensor: The Galaxy S25 features an ultrasonic fingerprint sensor embedded under the display for secure unlocking.
- Face Recognition: It also supports facial recognition technology as an additional security measure.
- Xiaomi 15:
- In-Display Fingerprint Sensor: The Xiaomi 15 utilizes an optical fingerprint sensor under the display for quick access.
- Face Unlock: It offers facial recognition as well, providing users with multiple options for secure access.
In summary, both the Samsung Galaxy S25 and Xiaomi 15 are equipped with a range of connectivity options and additional features that enhance their functionality. While both devices offer robust support for modern connectivity standards like Wi-Fi 7 and Bluetooth 5.3, they also include unique features that cater to different user preferences. As we conclude our comparison, we will summarize the key differences and similarities between these two flagship smartphones, helping potential buyers make informed decisions based on their needs.
10. Conclusion
In this comprehensive comparison of the Samsung Galaxy S25 and Xiaomi 15, we have explored various aspects that are crucial for potential buyers. Both smartphones represent the pinnacle of technology in 2025, yet they cater to different preferences and needs.
Key Differences
- Display: The Xiaomi 15 features a slightly larger 6.36-inch OLED display with a higher resolution of 2670 x 1200 pixels, compared to the Galaxy S25's 6.2-inch Dynamic AMOLED 2X display at 2340 x 1080 pixels. This gives the Xiaomi 15 an edge in terms of screen real estate and pixel density, making it ideal for media consumption [1][2].- Camera Systems: While both devices boast impressive camera setups, the Xiaomi 15 has three 50 MP cameras, offering a uniform high-resolution experience across its lenses. In contrast, the Galaxy S25 features a 50 MP main camera, accompanied by a 12 MP ultrawide and a 10 MP telephoto lens, which may appeal to users looking for versatility in photography [1][3].
- Battery and Charging: The Xiaomi 15 is equipped with a larger 5400mAh battery and supports rapid charging at 90W, allowing it to charge significantly faster than the Galaxy S25's smaller 4000mAh battery with only 25W charging support. This makes the Xiaomi 15 more suitable for heavy users who prioritize battery life and quick charging capabilities [1][2].
- Software Experience: The Galaxy S25 runs on Samsung's One UI 5.1, which emphasizes AI tools and productivity features, while the Xiaomi 15 utilizes MIUI 14, known for its extensive customization options. Users may prefer one interface over the other based on their personal preferences for usability and aesthetics [1][3].
Similarities
- Both smartphones are powered by variations of the Snapdragon 8 Elite processor, ensuring top-tier performance across tasks, from gaming to multitasking [1][2]. They also support 5G connectivity, Wi-Fi 7, and Bluetooth 5.3, making them future-proof choices in terms of connectivity.Final Thoughts
Ultimately, choosing between the Samsung Galaxy S25 and Xiaomi 15 will depend on individual priorities. If you seek a device with superior charging capabilities and camera uniformity, the Xiaomi 15 is an excellent choice. Conversely, if you prefer a device with robust AI features and a premium software experience, the Galaxy S25 may be more aligned with your needs.As both devices are set to compete in the flagship market, consumers can expect them to deliver exceptional performance and features that cater to a wide range of preferences in 2025.
Citations:[1] https://www.trustedreviews.com/versus/samsung-galaxy-s25-vs-xiaomi-15-4585561
[2] https://www.phonearena.com/phones/compare/Samsung-Galaxy-S25,Xiaomi-15/phones/12340,12457
[3] https://www.gsmarena.com/compare.php3?idPhone1=13610&idPhone2=13472
[4] https://www.gadgets360.com/compare-samsung-galaxy-s25-ultra-130577-vs-xiaomi-15-129073
[5] https://codingmall.com/knowledge-base/25-global/215445-what-are-the-main-differences-in-design-between-the-xiaomi-15-pro-and-the-galaxy-s25-ultra
[6] https://www.gizmochina.com/2024/08/27/xiaomi-15-ultra-vs-galaxy-s25-ultra-vs-find-x8-ultra-as-january-2025-launch-tipped/
[7] https://phonebolee.com/Samsung-Galaxy-S25-vs-Xiaomi-15/
[8] https://www.smartprix.com/mobiles/xiaomi_15_vs_samsung_galaxy_s25-cpd1b5xrl30j_pd10ss8kmvt.php