Samsung upgrades 46 Galaxy devices with One UI 7 and Android 15 in 2025

Samsung kicked off 2025 with a major milestone in the tech industry, expanding One UI 7, its interface based on Android 15, to 46 devices in the Galaxy lineup. From premium smartphones like the Galaxy S25 to mid-range models like the Galaxy A54 and tablets like the Tab S9, this update aims to transform the experience for millions of users worldwide. Emphasizing artificial intelligence, 5G connectivity, and enhanced security, the South Korean company blends innovation with accessibility to cater to diverse consumer profiles. The rollout, which began in 2024, follows a structured timeline to ensure a stable delivery of features throughout the year. In Brazil, a key market for the brand, the update is expected to reach a vast user base, particularly in popular A and M series devices.

Artificial intelligence is the cornerstone of One UI 7, with assistants that learn user patterns and offer practical suggestions, such as optimizing battery settings or organizing daily tasks. The design has been revamped with modern icons and fluid animations, making navigation more intuitive across smartphones and tablets. 5G connectivity, critical in an increasingly connected world, benefits from optimizations that reduce latency and stabilize connections, even in areas with variable coverage. Tablets and foldable devices, like the Galaxy Z Fold 6, receive exclusive features such as advanced multitasking, boosting productivity and entertainment.

Security, another core focus, has been strengthened with an updated Samsung Knox platform and detailed permission controls, safeguarding personal data in a complex digital landscape. Samsung estimates that over 100 million devices will be updated by the end of 2025, solidifying its leadership in the Android ecosystem. The extended support strategy, offering up to five years of security updates for premium models, builds consumer trust and extends device longevity.

Initial rollout of One UI 7

The Galaxy S25 series, launched in January 2025, debuted with One UI 7 pre-installed. Equipped with cutting-edge processors, these devices deliver seamless performance in tasks like video editing, gaming, and social media browsing. AI-powered assistants, now more responsive, enable detailed customization, tailoring performance to user preferences. The experience has been described as dynamic, with smooth transitions that elevate everyday use.

Galaxy S24 models, including the S24, S24+, and S24 Ultra, began receiving the update in September 2024. These smartphones, widely adopted globally, now feature tools that optimize battery life and enhance photography. The camera app leverages AI for real-time adjustments, such as lighting correction and object removal, delivering near-professional results. This functionality stands out as a competitive edge, especially in premium models heavily used for social media and content creation.

Foldable devices, such as the Galaxy Z Fold 6 and Z Flip 6, were among the first to benefit. The interface has been tailored for flexible displays, allowing up to three apps to run simultaneously with simplified navigation. This feature caters to professionals needing multitasking capabilities and enthusiasts exploring gaming and streaming in unique formats. The initial deployment of these innovations reinforces Samsung’s position as a leader in high-end devices.

• Initial models updated:
  • Galaxy S series: S25, S25+, S25 Ultra, S24, S24+, S24 Ultra, S23, S23+, S23 Ultra.
  • Galaxy Z series: Z Fold 6, Z Fold 5, Z Flip 6, Z Flip 5.
  • Galaxy Tab series: Tab S9, S9+, S9 Ultra, Tab S8, S8+.

Artificial intelligence at the core

One UI 7 positions artificial intelligence as a key differentiator, reshaping how users interact with Galaxy devices. Integrated assistants analyze user habits, suggesting shortcuts for frequent tasks like replying to messages or adjusting screen brightness based on the time of day. This personalization minimizes manual configuration, making devices more intuitive and efficient.

A standout feature is the AI-driven battery optimization, which uses machine learning to reduce power consumption. Tests show up to a 15% increase in battery life during intensive tasks like video streaming or gaming. In models like the Galaxy S25 Ultra, AI dynamically adjusts processor performance, balancing power and efficiency across applications. This ensures high performance without sacrificing endurance.

Photography also benefits significantly. The native camera app now removes background noise in videos, enhances colors automatically, and corrects imperfections in portraits. Previously exclusive to paid software, these tools are now available on mid-range devices like the Galaxy A54, broadening access to advanced features. This democratization aligns with Samsung’s strategy to deliver quality across price points.

Enhanced security for a digital world

Protecting personal data is a top priority in One UI 7, particularly amid rising cyber threats. The interface introduces granular permission controls, allowing users to decide which data each app can access. For instance, location access can be restricted to when an app is in use, reducing risks of unwanted tracking.

The Samsung Knox security platform has been upgraded with additional layers of protection. It monitors suspicious activity in real time, blocking unauthorized access attempts. Paired with Android 15, the system provides robust defenses against malware, critical for users storing sensitive information like financial data or corporate documents. This approach fosters trust in an increasingly complex digital environment.

Compatible devices will receive security updates for up to five years, depending on the model. This policy extends device lifespan, especially in markets where frequent smartphone upgrades are less common. Samsung’s commitment to long-term security aligns with consumer and business expectations.

One UI 7 rollout timeline

The One UI 7 deployment follows a detailed schedule to ensure stability and broad coverage. The process, which started in 2024, continues through 2025, covering various device categories:

• September to October 2024: Galaxy S24, S24+, S24 Ultra, Z Fold 6, Z Flip 6.
• January to March 2025: Galaxy S23, S23+, S23 Ultra, S22, S22+, S22 Ultra, Tab S9, Tab S8.
• April to June 2025: Galaxy A74, A54, A34, M54, M34, and other mid-range models.
• July to December 2025: Final adjustments for remaining devices and regional models.

Users can check availability in software settings, with unlocked models typically receiving updates before carrier-locked ones. Samsung advises keeping devices connected to stable Wi-Fi and with at least 50% battery during the process. The phased approach minimizes technical issues and ensures a smooth transition.

Extended support for mid-range models

The inclusion of mid-range devices, such as the Galaxy A54 and M34, amplifies the impact of One UI 7 in markets like Brazil, where these models dominate sales. The Galaxy A54, launched in 2023, stands out for its versatility, delivering flagship-like performance in tasks like browsing and social media. Its AI-optimized camera captures sharp images even in low light, appealing to consumers seeking quality on a budget.

The M series, known for long-lasting batteries, also benefits. The Galaxy M34 pairs One UI 7’s power-saving features with its robust battery, ideal for users relying on their phones for extended periods. These enhancements strengthen Samsung’s competitiveness in affordable price segments, catering to a diverse user base.

Older models, like the Galaxy S21, receive partial support, with security patches guaranteed until 2026 in some regions. While they miss out on the full One UI 7 experience, these devices remain functional, serving users prioritizing longevity. This extended support policy sets Samsung apart in a market where frequent updates are not always standard.

Optimizations for foldable devices

The Galaxy Z Fold 6 and Z Flip 6 receive tailored enhancements in One UI 7, unlocking the potential of their flexible displays. The interface supports advanced multitasking, allowing up to three apps to run simultaneously with seamless screen splitting. This is perfect for professionals juggling spreadsheets, video calls, and notes, as well as enthusiasts enjoying unique gaming and streaming formats.

Navigation has been streamlined with intuitive gestures, simplifying interaction with large screens. For entertainment, such as watching videos while messaging, the experience is smooth and lag-free. One UI 7 also optimizes power consumption on foldable displays, extending hardware longevity. Users report improved efficiency in prolonged tasks like document editing or gaming, positioning foldables as versatile work and play devices.

• Key foldable enhancements:
  • Multitasking with up to three apps open.
  • Intuitive gestures for screen splitting.
  • Power optimization for flexible displays.
  • Support for unique gaming and streaming formats.

5G connectivity as a cornerstone

5G connectivity is a central pillar of One UI 7, with optimizations that reduce latency and stabilize connections on fifth-generation networks. In urban areas with established 5G coverage, Galaxy devices deliver consistent performance, even during peak usage. Models like the Galaxy A54 show noticeable improvements in speed tests, meeting demands for streaming and video calls.

In rural areas, where 5G infrastructure is still expanding, the interface ensures smooth transitions between 5G and 4G, preventing connection drops. This flexibility is vital in markets like Brazil, where 5G rollout varies by region. Samsung also introduced tools to manage data usage, allowing users to set limits for specific apps. This feature balances performance and cost, especially on limited data plans.

Enhanced connectivity benefits both consumers and businesses. Professionals relying on video conferencing or large file transfers report greater reliability, while casual users enjoy faster social media browsing. This positions Galaxy devices as future-ready for a world dominated by high-speed networks.

Benefits for Galaxy tablets

The Galaxy Tab S9 and S8 series shine with One UI 7, optimizing tasks like video editing, project management, and streaming. The interface supports multitasking with floating windows, enabling multiple apps to run simultaneously. This is ideal for students switching between notes and research or professionals handling multiple tasks.

Compatibility with accessories, such as keyboards and the S Pen, has been improved. On the Galaxy Tab S9, S Pen latency has been reduced, offering greater precision for drawing and note-taking. Battery life also sees gains, with optimizations extending usage during activities like reading or presentations. Users report up to 20% longer battery life in less intensive tasks, such as web browsing.

The tablet experience rivals that of laptops for light productivity. Integration with the Galaxy ecosystem, such as syncing with smartphones and wearables, enhances convenience, particularly for users with multiple Samsung devices. This positions tablets as versatile tools for work and entertainment.

Galaxy ecosystem integration

One UI 7 strengthens connectivity across the Galaxy ecosystem, creating a cohesive experience. Smartphones, tablets, smartwatches, and earbuds now share data seamlessly, enabling smooth transitions. For example, users can start a call on a Galaxy S25 and transfer it to a Galaxy Tab S9 without interruption, streamlining workflows.

Native apps, like Samsung Notes, sync in real time, facilitating collaboration in personal or professional settings. The Galaxy Watch displays detailed One UI 7 notifications, allowing quick replies without touching the phone. This integration boosts the perceived value of Galaxy products, encouraging brand loyalty.

The approach mirrors closed ecosystems like Apple’s but with greater price diversity. Samsung caters to premium users with devices like the Galaxy S25 Ultra and budget-conscious consumers with models like the Galaxy A54, ensuring a consistent experience across market segments.

Challenges of large-scale deployment

Updating 46 devices globally poses logistical and technical challenges. Mid-range models, like the Galaxy A34, may face delays due to hardware fragmentation, particularly in regions where carriers customize software. Samsung has invested in robust servers to streamline the process, but distribution complexity persists.

Users of older models, such as the Galaxy S21, seek broader support, but Samsung prioritizes newer devices to maximize the impact of new features. Still, security patches for 2021 models demonstrate a commitment to the installed base. This strategy balances innovation with maintenance, addressing varied expectations.

Regional variations also affect update timelines. In Brazil, where unlocked devices are common, rollouts are often faster. Carrier-locked models, however, may face delays due to additional testing. Samsung mitigates these gaps with regular software status updates.

• Factors affecting deployment:
  • Hardware fragmentation in mid-range models.
  • Carrier-specific software customization.
  • Regional differences in server infrastructure.
  • Prioritization of premium and unlocked devices.

Global strategy and Brazil’s role

Samsung maintains its Android ecosystem leadership with a policy of up to four years of system updates and five years of security patches for premium models. This rivals brands known for longevity, like Apple, and enhances the long-term value of Galaxy devices. The strategy is crucial in competitive markets where support duration influences purchase decisions.

Brazil, with its large user base, is a priority market. The popularity of the A and M series ensures that millions of Brazilians will benefit from One UI 7 by the end of 2025. Features like AI and 5G optimization in affordable models reinforce Samsung’s relevance across price points.

Integration with third-party services, such as Google Gemini, adds versatility. Users can perform complex tasks, like summarizing texts or editing videos, directly on their devices without external apps. This collaboration enhances the experience while preserving the One UI identity, solidifying Samsung’s market position.

Preparing for future trends

One UI 7 is more than an incremental update; it prepares Galaxy devices for emerging trends like augmented reality and cloud computing. The interface supports dynamic refresh rates up to 120 Hz, optimizing power consumption on compatible displays. This is critical for immersive experiences like gaming and AR applications.

Samsung is also planning AI advancements for future versions. Internal tests suggest that One UI 8, expected in 2026, will enhance on-device processing, reducing reliance on online connections for complex tasks. This vision underscores a commitment to continuous innovation, keeping Galaxy devices aligned with market demands.

Combining practicality, security, and performance, One UI 7 marks a significant step in the Galaxy ecosystem’s evolution. With 46 devices covered, Samsung caters to tech enthusiasts and casual users alike, maintaining its relevance in a dynamic market.