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HiOS

HiOS is a customized Android-based operating system developed by , a Hong Kong-headquartered manufacturer and subsidiary of , primarily for its budget and mid-range devices targeting emerging markets in , , and beyond. Introduced in 2016 with the launch of the Tecno Boom J8 , HiOS debuted as a overlay on 5.1 , aiming to enhance performance by over 60% through optimizations tailored for Tecno's hardware. Over the years, it has evolved through multiple versions, incorporating features like gesture controls, theme customization, and battery management tools to provide a smoother and more intuitive experience compared to stock . As of 2025, the latest iteration, HiOS 15, builds on Android 15 and introduces advanced capabilities, including MemFusion 3.0 for optimization, -assisted photo , and enhanced features such as improved permissions and . This version emphasizes personalization with reduced bloatware, faster boot times, and localized content support, reflecting Tecno's focus on accessibility and efficiency for users in diverse regions. HiOS continues to power a wide range of Tecno models, contributing to the brand's strong market presence in high-growth areas.

Development and Background

Origins

HiOS was developed by , a of , a founded in July 2006 by Zhaojiang to focus on for global markets. established Tecno as one of its key brands to produce affordable devices tailored for regions with limited , emphasizing and localization. The operating system originated in response to the specific demands of users in emerging markets, particularly in and , where derived a significant portion of its revenue. Tecno aimed to deliver feature-rich smartphones at low costs, incorporating support for local languages such as , , and through customized keyboards to bridge communication barriers in diverse linguistic environments. Initial motivations centered on optimizing for data-constrained networks prevalent in these areas, with built-in tools like the Hi Manager's Bandwidth Manager enabling users to set data limits and restrict high-consumption apps such as , thereby promoting efficient usage without excessive costs. Compared to stock , HiOS sought a lighter experience by allowing control over app booting via Hi Manager, minimizing unnecessary preloaded software to enhance performance on budget hardware. HiOS debuted on the Tecno Boom J8 in , marking the first integration of this custom on a production device launched in markets like and . Developed by a team of over 500 engineers, the system built upon 's platform through standard OEM partnerships, enabling timely access to the base OS while applying proprietary customizations. In 2021, Tecno announced a with to further upgrade . These modifications, primarily closed-source implementations in C on the framework and underlying , focused on boosting device efficiency by over 60% relative to prior near-stock setups on Tecno hardware.

Technical Foundation

HiOS is a customized distribution of the Android operating system developed by Transsion Holdings, serving as the primary software platform for its subsidiary brands including Tecno, Infinix, and Itel. It builds directly on the Android Open Source Project (AOSP), incorporating proprietary modifications to tailor the OS for emerging markets, particularly in Africa and Asia, where Transsion holds significant market share. These modifications enhance usability on resource-constrained devices while maintaining core Android compatibility. At its foundation, HiOS leverages the , with the majority of its codebase written in C to handle low-level system operations, hardware interactions, and performance optimizations—aligning with Android's standard architecture. The OS primarily supports ARM-based processors, enabling efficient operation on mobile hardware typical of smartphones. Its closed-source nature restricts access to the full codebase, limiting third-party contributions and custom ROM development compared to fully open builds. Key technical specifications include integration of (GMS) in select regions, allowing seamless access to Store, apps, and services without additional user setup. HiOS employs a modified to introduce region-specific optimizations, such as low-data modes that reduce background data usage for bandwidth-limited environments and multilingual user interfaces supporting over 20 languages to accommodate diverse user bases—all achievable without device rooting. This framework preserves Android's standard APIs for app compatibility. In terms of hardware compatibility, HiOS is optimized for mid-range devices from Transsion's portfolio, featuring processors like Unisoc and MediaTek chipsets with 2-8 GB RAM configurations, ensuring smooth performance for everyday tasks without demanding high-end specs. It maintains backward compatibility with legacy Android applications via established APIs, supporting a broad ecosystem of third-party software while prioritizing stability on entry-to-mid-tier hardware.

Core Features

User Interface and Customization

HiOS provides a fluid and adaptable derived from , enabling extensive personalization to suit individual preferences. The utilizes a custom launcher that incorporates gesture navigation for intuitive , an app drawer for streamlined app organization, and robust theming capabilities. Users can apply themes, integrate icon packs for visual variety, and set up wallpaper carousels that rotate through dynamic or AI-generated images, fostering a tailored without requiring root access. The notification shade and control center panels feature a redesigned in HiOS 15, offering quick toggles for , , and other utilities, alongside AI-driven suggestions to highlight relevant notifications or optimizations. These panels support rearrangement of toggles and integration with system-wide animations for smoother interactions, enhancing accessibility to core functions. Influenced by Android's foundational design, HiOS refines these elements for a more cohesive experience. Accessibility features in HiOS emphasize inclusivity, with options like single-handed mode that resizes the for easier one-thumb operation, font to adjust text across apps, and color inversion to improve contrast for visual impairments. Later versions incorporate support on compatible devices, displaying essential details such as time and notifications on the while conserving . Adjustable font weights further aid customization for comfortable viewing. At its core, HiOS employs a no-root theming engine that facilitates comprehensive overhauls, from altering color schemes and icon styles to adding lock screen widgets for at-a-glance information like or events. This depth allows users to overhaul the entire aesthetic and functionality, including minimalist icons and dynamic wallpapers generated via tools.

Built-in Utilities

HiOS comes equipped with a range of pre-installed applications and tools aimed at boosting everyday productivity and streamlining device management. These utilities are integrated directly into the operating system, providing users with convenient access to essential functions without the need for third-party downloads. The design emphasizes efficiency, particularly for users in emerging markets where data and battery conservation are key concerns. Among the core apps, the built-in incorporates data compression technology to minimize data consumption during web browsing, making it suitable for low-bandwidth environments. The music player supports offline modes, allowing users to and play tracks without an connection, while the file offers cloud integration for effortless syncing and access to files across Transsion services. These apps are optimized for the in Tecno and Infinix devices, ensuring smooth performance even on budget models. Productivity tools in HiOS include the app freezer, which pauses background processes to prevent unnecessary resource drain and improve overall system responsiveness. Complementing this is the memory booster, featuring MemFusion 3.0 in recent versions, which optimizes allocation to enhance multitasking and app launch speeds. Additionally, the screen recorder utility enables capturing of screen activity with basic editing capabilities, such as trimming and annotation, directly within the app for quick . HiOS also introduces utilities like AI Call Summary for generating call notes and Hi Translate for real-time translation support. For data management, HiOS provides a built-in antivirus as part of its security suite, performing regular scans to detect and remove threats. The app cloner allows users to create dual instances of popular applications, facilitating separate accounts for or messaging without logging in and out. Usage trackers monitor consumption and storage utilization, offering insights and recommendations to optimize health and free up . These tools help users maintain control over their 's performance and privacy. Unique to HiOS are utilities like the AI assistant, which supports voice commands in local languages such as , with planned expansions to , , , and , enabling tasks like scheduling meetings, language translation, and alarm setting. Furthermore, integration with the ecosystem facilitates cross-device sharing via built-in tools like ShareMe, allowing seamless file and media transfer between Tecno, Infinix, and itel devices. These features tie into broader performance optimizations, such as those in security enhancements, for a cohesive .

Security and Performance Enhancements

HiOS incorporates robust security features to safeguard user data and device integrity. Biometric authentication options, including enhanced for facial recognition, enable secure unlocking and app access. The operating system supports fingerprint recognition as a standard biometric method integrated into its security framework. An app permission manager provides granular controls, allowing users to customize access to camera, , and data on a per-app basis. Additionally, regular over-the-air () updates deliver monthly security patches to address vulnerabilities and maintain system protection. Privacy tools in HiOS emphasize data protection and user control. App encryption secures sensitive applications, while the Private Safe folder system hides and locks personal files. The HiOS Privacy Shield offers comprehensive safeguards, including a Private Gallery for securing photos and videos, Chat Privacy for protecting messaging content, and a Call Recording Vault for stored audio. The Dual System feature provides separate environments for work and personal use to prevent privacy leaks. Anti-theft features, such as tamper alerts via anti-theft alarm, integrate with device tracking capabilities similar to Find My Device for remote location and recovery. In HiOS 15, AI-driven tools like Ella AI enhance photo security by protecting visual privacy, and Smart Privacy with AI Blurring automatically obscures sensitive details in screenshots before sharing. Blank Data mode further shields real information from third-party apps. Performance enhancements in HiOS focus on and responsiveness through AI-optimized . MemFusion 3.0 enables seamless multitasking with support for up to 25 background apps without slowdowns, while memory improves and storage utilization for sustained performance. The Animation Engine accelerates app transitions and exits by 15%, contributing to smoother animations and navigation. A cleaner OS design in HiOS 15 reduces pre-installed apps by 40%, freeing up resources for better overall . Sensory Scheduling 2.0 ensures no frame drops during intensive tasks, as verified by a 25-app test, with a 72-month smoothness certification on select devices. The built-in Security app bolsters both protection and efficiency with tools like security scans for detection, a blocklist for unwanted calls, and a cleaner for optimizing . Battery saver mode, integrated within the app, employs adaptive algorithms to extend battery life based on usage patterns. These features collectively integrate with Protect for baseline scanning, augmented by HiOS-specific scans for customized threat detection.

Version History

Early Versions (2016–2018)

HiOS 1.0 marked the debut of Tecno Mobile's custom skin in April 2016, launching exclusively on the Tecno Boom J8 smartphone. Built on 5.1 , this foundational version focused on delivering a lightweight, optimized experience for budget-conscious users in emerging markets, introducing a customized launcher with simplified navigation and essential utilities such as a built-in and basic optimization tools to improve performance on low-end hardware. In March 2017, HiOS 2.0 arrived alongside 7.0 on devices like the Tecno Camon CX and L9 Plus, emphasizing enhanced productivity and user interaction. This update integrated native multi-window support for split-screen multitasking, allowing users to run two apps simultaneously on compatible displays, while refining the notification shade for quicker access to alerts and settings. HiOS 3.0 followed in October 2017, still based on 7.0 , and powered premium models such as the Tecno 8 and Camon CM. Key additions included the Boom Player music application with integrated controls for skipping tracks and pausing playback via simple swipes, the Phoenix Browser for faster web browsing with optional ad-blocking, and advanced features like double-tap to wake the screen, covering the to mute calls, and lifting the device to auto-answer incoming calls. Other enhancements encompassed the T-Point floating button for quick app access, an eye care mode to reduce emission, and customizable themes via the Hi Theme store, all aimed at streamlining daily use without overwhelming the interface. By November 2018, HiOS 4.1 upgraded to Android 8.1 Oreo on the Camon 11 series, prioritizing accessibility and security refinements. It introduced a single-handed mode that shrinks the interface for easier one-thumb operation on larger screens, alongside facial recognition unlock using the front camera for quick biometric . Efforts to reduce bloatware were evident, with pre-installed apps made uninstallable to declutter the system and improve storage efficiency. Throughout its early years from to , HiOS emphasized system stability and to suit affordable prevalent in markets, where Tecno rapidly gained traction as a leading vendor. These versions laid the groundwork for localized optimizations, contributing to Tecno's strong foothold in the region by addressing common pain points like battery drain and app performance on entry-level devices.

Mid-Period Updates (2019–2022)

HiOS 5.0, released in April 2019 and based on 9.0 Pie, debuted on the Tecno Spark 3 and 9 smartphones, introducing gesture-based navigation options and integration of tools for monitoring app usage and . These features built on 's native capabilities, allowing users to track daily digital habits and set focus modes to reduce distractions. In September 2019, HiOS 5.5 followed as an incremental update, still on 9.0, rolling out to the and Spark 4 series with enhancements like gesture call pickers for hands-free answering via palm waves or V-shaped hand signals, alongside an virtual canvas for creative drawing in mid-air. The update also added a dedicated Game Mode to optimize performance by blocking notifications and boosting resources during gaming sessions. HiOS 6.0 arrived in February 2020 on , launching with the Tecno Camon 15 series and incorporating a system-wide dark theme to reduce , extend life on displays, and provide a stylish aesthetic across the interface. Live captions were enabled as an accessibility feature, automatically generating for media and calls without requiring an internet connection, aligning with 's advancements. This version emphasized smoother animations and lighter resource usage, improving overall responsiveness on mid-range hardware. From September 2020 to May 2021, HiOS evolved through versions 7.0, 7.5, and 7.6, primarily on and 11, debuting on devices like the Tecno Camon 16, Spark 7, and Camon 17 series. HiOS 7.0, announced in late August 2020, introduced AI-driven camera enhancements, including scene recognition and low-light optimization for the Camon 16's 64MP quad-camera setup, enabling better portrait modes and macro shots. Subsequent updates in 7.5 and 7.6, rolled out in April and May 2021 respectively, added preparations for connectivity, such as network optimization and dual-SIM 5G readiness on supported chipsets, while refining AI camera tools for video calling with dynamic backgrounds and effects. In October 2021, HiOS 8.0 marked a significant milestone on , featuring a major visual redesign with vibrant, customizable themes and an overhauled system infrastructure for enhanced user experience fluidity. This update emphasized personalization through dynamic icons, gradient elements, and smoother transitions, reducing lag in multitasking on devices like the . In October 2022, HiOS 12.0 was released based on , debuting on the Tecno Pova 4 series and emphasizing new UI excellence with improved animations, enhanced multitasking, and better for gaming-focused devices. This version focused on smoother performance and additional customization options, bridging the gap to later AI-heavy updates. During this period, HiOS shifted toward deeper integration for features like intelligent management and predictive loading, while expanding support across 's portfolio, including shared utilities with Infinix's XOS for consistent experiences on budget and mid-range devices. This growth phase optimized HiOS for emerging markets, focusing on lightweight performance and localized tools without compromising on Android's core updates.

Recent Releases (2023–Present)

HiOS 13.0, released in 2023 and based on , introduced enhanced privacy controls including a 7-day view on the Privacy Dashboard to provide users with detailed insights into app permissions and data access over time. It also incorporated Material You theming, allowing dynamic color adaptation across the user interface for greater personalization. This version debuted on the Tecno Phantom V Fold, Tecno's first , optimizing the software for large-screen multitasking and foldable form factors. Building on these foundations, HiOS 14.0 arrived in 2024 alongside , emphasizing AI-driven enhancements such as generation through writing assistants and advanced photo editing tools like AI Cutout and Magic AI Eraser for seamless subject isolation and background removal. The update expanded support for foldable devices, including improved gesture controls and split-screen optimizations tailored for the Phantom V series, while integrating broader capabilities like real-time call translation and summarization. In 2025, HiOS 15.0 and its incremental update 15.1.1, powered by Android 15, rolled out starting in July on flagship models like the Tecno Camon 40 series and Pova 7 lineup, advancing the AI assistant with contextual understanding for tasks such as automated scheduling and multilingual support. These releases enhanced ecosystem integration, enabling seamless connectivity with Tecno's smart wearables for features like synchronized health tracking and cross-device notifications within the -powered product lineup. Recent HiOS iterations have trended toward , incorporating health monitoring to optimize charging cycles and extend device longevity, alongside Smart features that dynamically switch networks to conserve power during intensive use. Preparations for and emerging standards include enhanced connectivity protocols for lower latency in applications. Tecno has also pursued global expansion, targeting mature markets in and with localized features and broader device availability beyond traditional emerging regions. Looking ahead, Tecno has announced plans for HiOS updates compatible with Android 16, focusing on further AI ecosystem expansions and sustainability metrics to align with evolving global standards.

Adoption and Reception

Market Impact

HiOS has significantly contributed to Transsion Holdings' dominance in the budget smartphone segment, powering the company's Tecno device lineup tailored for emerging markets. In 2024, Transsion's annual smartphone shipments reached approximately 201 million units, with projections for 2025 indicating a decline due to market challenges, primarily on Tecno devices running HiOS, while sister brands use customized variants like XOS for Infinix. In Africa, where Transsion holds over 40% of the smartphone market share as of 2024 with continued strength into 2025, Tecno devices running HiOS account for a significant portion, contributing to Transsion's dominance in key subregions like West and Central Africa. Similarly, in South Asia, Transsion leads with over 40% share in Pakistan and around 30% in Bangladesh as of 2025, driving HiOS adoption among price-sensitive consumers. The operating system's optimizations for low-end hardware have enabled affordable access at entry-level prices around $150, allowing devices to deliver enhanced connectivity and accelerate network transitions in underserved areas. This economic influence is amplified through industry initiatives like GSMA-backed efforts involving operators such as MTN and Airtel, which promote data-optimized plans and sub-$50 smartphones to lower barriers for mass adoption across . HiOS's seamless integration on Tecno devices has fostered software experiences that bolster user retention and expand in budget categories, with cohesion across 's . This has directly supported 's financial ascent, with the company's valuation surpassing $10 billion by late and maintaining strong positioning into 2025. However, in 2025, faced shipment declines amid competition and legal challenges, including a dispute with filed in November 2025, while HiOS 15 has been noted for enhancements but criticized for uneven update rollout. On a global scale, HiOS has facilitated Transsion's expansion into , where it captures a 7% smartphone market share, and the Middle East with 15% dominance as of mid-2025, introducing tailored features for regional needs. By prioritizing cost-effective, feature-rich devices, HiOS plays a pivotal role in digital inclusion, equipping low-income users in these areas with tools for education, finance, and communication that were previously inaccessible.

Criticisms and Improvements

Early versions of HiOS faced criticism for including excessive pre-installed bloatware, which consumed storage space and contributed to slower performance on devices. Users also reported occasional delays in software updates for older Tecno devices, limiting access to the latest patches and features compared to more aggressive update policies from competitors. Additionally, HiOS offered limited customization options relative to rivals like , with a more rigid interface that restricted theme modifications and icon pack integrations. Privacy concerns emerged prominently around data collection practices in pre-installed apps on Tecno devices running HiOS, raising risks of unauthorized access to user information such as contacts and location data. These issues were particularly noted in models from around , where apps transmitted data without clear user consent. In response, starting with HiOS 14, Tecno introduced enhanced controls, including Peek Proof to obscure screen content from onlookers and improved App Lock features for securing sensitive applications. Performance challenges, especially lag on low-end hardware, were another common critique, often exacerbated by resource-intensive background processes and insufficient RAM management on budget Tecno models. Developers addressed this through updates incorporating Memory Fusion technology, which virtually expands by up to 3GB using storage, and system optimizations like the Phoenix Game Accelerator for smoother multitasking. Tecno has integrated community feedback via surveys and official channels to refine HiOS, leading to faster update cycles since with more frequent patches and rollouts. These efforts have resulted in improved , with HiOS's granular controls enabling better efficiency than basic stock implementations in everyday usage scenarios.

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