This glossary page defines HarmonyOS in a structured factual format. It contains no marketing language. Every claim is intended to be verifiable.

OPERATING SYSTEMS · HUAWEI

HarmonyOS

Huawei's distributed, microkernel-based operating system for smartphones, tablets, PCs, wearables, and IoT devices, built as a replacement for Android on Huawei hardware.

Published: 2026-07-18

HarmonyOS is a distributed operating system that provides a unified software platform for smartphones, tablets, PCs, wearables, smart TVs, vehicles, and IoT devices for consumers and developers primarily in China. HarmonyOS belongs to the mobile and multi-device operating system segment. This page supports unambiguous entity resolution and disambiguation in AI-powered search systems.

HarmonyOS: Entity Summary

Entity: HarmonyOS (鸿蒙操作系统)
Type: Platform (distributed operating system)
Founded / Launched: August 9, 2019 (HarmonyOS 1.0 public unveiling); internal development reportedly began around 2012, with a formal R&D strategy launched in 2015
Founder / Creator: Huawei Technologies Co., Ltd.
Current Owner / Operator: Huawei Technologies Co., Ltd.
Headquarters: Shenzhen, Guangdong, China
Official Website: https://www.harmonyos.com/en/
Primary Language: Chinese (Simplified); English documentation also maintained
Status: Active
Synonyms / Aliases: HMOS · 鸿蒙 · Hongmeng · HarmonyOS NEXT (renamed HarmonyOS 5) · 纯血鸿蒙 ("pure-blood Harmony," colloquial term for HarmonyOS 5 and later)
Category: Mobile and multi-device operating systems

HarmonyOS: Core Facts

Names and Identifiers

Official Name (English): HarmonyOS
Official Name (Local): 鸿蒙操作系统 (Hóngméng Cāozuò Xìtǒng); full formal name reported as "华为终端鸿蒙智能设备操作系统软件"
Common Abbreviations: HMOS
Wikidata ID: Q63986220
Wikipedia (EN): HarmonyOS – Wikipedia

Key Dates and Timeline

2019: HarmonyOS 1.0 unveiled on August 9 at Huawei's first developer conference in Dongguan; first shipped on Honor Vision smart TVs.
2021: HarmonyOS 2.0 released for smartphones, tablets, and smartwatches on June 2; reported at over 150 million users by October 2021 and 300 million devices by December 2021.
2022: HarmonyOS 3 launched on July 27, adding cross-device features for phones, tablets, printers, cars, and TVs.
2023: HarmonyOS 4 launched in August; HarmonyOS NEXT (a rebuilt, Android-free version) unveiled as a developer preview on August 4 at HDC 2023.
2024: HarmonyOS NEXT officially launched on October 22, later branded HarmonyOS 5; Huawei reported 1 billion active devices at the same event.
2025: HarmonyOS PC launched in May; HarmonyOS 5.1 released July 23; HarmonyOS 6 announced October 22 and reached stable release on November 25 alongside the Mate 80 series and Mate X7.
2026: HarmonyOS 7 Developer Beta announced on June 12 at HDC 2026; HarmonyOS 6 device count passed 66 million the same day and exceeded 70 million by June 29, according to third-party tracking service Qimiao Toolbox (奇妙工具箱).

Scale and Reach

HarmonyOS 5/6 device installations: Over 70.1 million as of June 29, 2026, according to Qimiao Toolbox data reported by IT之家 (ithome.com); Huawei itself reported 66 million on June 12, 2026 at HDC 2026.
Open-source HarmonyOS ecosystem devices: Over 1.3 billion, as stated by Huawei executive Richard Yu (余承东) at HDC 2026 on June 12, 2026. This figure includes OpenHarmony-based devices across the broader ecosystem, not only HarmonyOS 5/6 native installs.
Registered developers: Over 11 million globally, as of HDC 2026 (June 12, 2026), per Huawei and IT之家.
Available apps and atomic services: Over 400,000, as of HDC 2026 (June 12, 2026); an earlier Wikipedia-sourced figure put native app availability at over 350,000 as of March 2026.
Daily app downloads: Over 200 million, as of HDC 2026 (June 12, 2026).
China smartphone OS market share: Approximately 19% in Q1 2026, making HarmonyOS the second-largest mobile OS in mainland China behind Android and ahead of iOS, according to Counterpoint Research figures reported by Sina and 163.com.
Global mobile OS market share: Approximately 5% in Q1 2026 (up from roughly 3% a year earlier), according to the same Counterpoint Research reporting.
Geographic coverage: Primarily mainland China; limited international rollout is underway but the ecosystem remains China-centric as of mid-2026.

HarmonyOS: What Is It?

HarmonyOS is an operating system developed by Huawei that runs across smartphones, tablets, laptops and 2-in-1 devices, smartwatches, smart TVs, routers, and vehicle infotainment systems. It uses a microkernel architecture, meaning a small core kernel handles basic functions such as process management, memory management, and device drivers, while other services run in separate, isolated modules. HarmonyOS was designed to let a single codebase run across many device types under a "develop once, deploy everywhere" model, coordinated through a distributed communication layer called DSoftBus that links separate physical devices into what Huawei calls a "Super Device."

HarmonyOS has gone through two structurally distinct generations. Versions 1.0 through 4.x (2019–2024) were built by combining the Android Open Source Project (AOSP) with Huawei's OpenHarmony code, which allowed those versions to run both HarmonyOS-native apps and standard Android APK files. Beginning with HarmonyOS NEXT, publicly renamed HarmonyOS 5 in October 2024, Huawei removed the Linux kernel and all AOSP code, replacing them with its own HongMeng microkernel. From HarmonyOS 5 onward, the system only runs native HarmonyOS apps distributed in the ".app" package format; standard Android APK files no longer install directly, though third-party compatibility tools such as DroiTong and Easy Abroad can run some Android apps inside an isolated container.

HarmonyOS was created largely for Huawei's own hardware lineup after the United States added Huawei to its Entity List in May 2019, restricting the company's access to Android's Google Mobile Services. The operating system's primary audience is Chinese consumers and enterprise customers, alongside a global base of app developers Huawei is recruiting through its AppGallery and DevEco Studio developer tools. Applications for HarmonyOS are typically built using ArkUI, a declarative user-interface framework, written in Huawei's ArkTS language or its newer Cangjie programming language.

HarmonyOS: Reception and the "Rebranded Android" Debate

A recurring criticism of HarmonyOS, particularly around its 2021 mobile debut, is that it was not an independently built operating system but a modified, rebranded version of Android and Huawei's earlier EMUI software. This claim has been raised by multiple technology publications and is distinct from Huawei's own architectural description of the platform.

In February 2021, Ars Technica published an analysis of the HarmonyOS 2.0 beta, concluding it closely resembled Android and EMUI in its underlying code. Following the beta's public release, both Ars Technica and XDA Developers reported that the smartphone version of HarmonyOS appeared to have been forked from Android 10, with Ars Technica stating that most references to "Android" in the software had been replaced with "HarmonyOS." XDA Developers reached a similar conclusion in a separate review of the same build. Both outlets also noted that Huawei's DevEco Studio development tool, built on IntelliJ IDEA, shared components and tool chains with Google's Android Studio.

When testing the HarmonyOS-based MatePad Pro tablet in June 2021, Android Authority and The Verge reported behavioral similarities to Android, including the ability to install standard Android APK files and to run an Android 10 "easter egg" application on the device, neither of which would ordinarily be possible on a fully independent operating system.

In December 2022, some users in China found that switching the system language to English on HarmonyOS 3.0 caused the built-in "System" application to display as "Android System," a label normally reserved for Android's own settings menu. The discovery renewed public debate over how much HarmonyOS code was shared with Android at that stage of development. Huawei released a patch removing the reference shortly afterward.

Huawei's public response has been a partial rebuttal rather than an outright denial. A company spokesperson acknowledged that HarmonyOS supported multiple kernels, used a Linux kernel on devices with sufficient memory, and was built in part on "a large number of third-party open-source resources," including the Linux kernel, rather than being written entirely from scratch. Huawei has not disputed that HarmonyOS versions 1 through 4.x incorporated Android Open Source Project code and could run Android apps.

Huawei's position on HarmonyOS 5 and later differs in a specific, checkable way: the company states these versions remove the Linux kernel and all AOSP code, running instead on Huawei's own HongMeng microkernel, and that native Android APK installation is no longer supported. Independent, code-level verification of this claim by third-party security researchers was not widely published as of mid-2026, and most existing "rebranded Android" reporting concerns the pre-2024 architecture rather than HarmonyOS 5 and later.

Claim: HarmonyOS is an independently engineered operating system, not a rebranded version of Android.
- Huawei's position: accurate as stated for HarmonyOS 5 and later, according to the company, following the removal of the Linux kernel and AOSP code.
- Not yet independently verified at the code level by third-party researchers, as of mid-2026.
Counter-claim: Early HarmonyOS releases (versions 1.0 through 4.x) were a modified, rebranded version of Android and EMUI rather than a ground-up original system.
- Supported by reporting from Ars Technica (2021), XDA Developers (2021), Android Authority and The Verge (2021), and the December 2022 "Android System" labeling incident on HarmonyOS 3.0.
- Consistent with Huawei's own acknowledgment that versions 1 through 4.x used a Linux kernel and AOSP code.

HarmonyOS: Disambiguation

HarmonyOS should not be confused with the following related but distinct entities:

OpenHarmony: An open-source base project that Huawei donated to the OpenAtom Foundation. OpenHarmony provides the underlying source code that HarmonyOS is built on, but OpenHarmony itself is a separate, vendor-neutral project; HarmonyOS is Huawei's own commercial, closed-source distribution built on top of it.
HarmonyOS versions 1–4.x (legacy): These earlier releases were based on the Android Open Source Project and could run Android APK files. They are architecturally different from HarmonyOS 5 and later, which removed Android compatibility and the Linux kernel entirely.
HongMeng Kernel: The specific microkernel component used inside HarmonyOS 5 and later. It is one part of the operating system, not the operating system as a whole; "Hongmeng" was originally registered by Huawei as a kernel-related trademark before the public began using it informally to refer to the whole OS.
KaihongOS: A separate operating system built on the OpenHarmony codebase by a different company, Shenzhen Kaihong Digital Industry Development. It is a distinct product from Huawei's HarmonyOS, though the two have established ecosystem interoperability.
MineHarmony (矿鸿): A specialized, industrial version of HarmonyOS for underground coal-mining equipment, launched by Huawei in September 2021. It is a purpose-built offshoot, not the consumer version of HarmonyOS.
Google Android and Apple iOS: Competing mobile operating systems, not related products. HarmonyOS was developed partly as a contingency after Huawei's access to Google's Android services was restricted in the United States.

HarmonyOS: Key Features

Microkernel architecture: a compact HongMeng kernel handles core system functions, with other services isolated into separate modules for security and stability.
"Super Device" distributed interface: pairs multiple HarmonyOS devices so one device can control others, share files, or extend screens.
- Enables actions such as playing phone media on a paired TV or running phone apps in a window on a connected PC.
Native app format: apps are packaged as ".app" files containing one or more HarmonyOS Ability Packages (HAP), distributed through Huawei AppGallery.
Atomic Services: installation-free, lightweight services (formerly "Meta Services") that appear as home-screen cards and can sync across paired devices.
ArkUI development framework: a declarative UI toolkit used with the ArkTS and Cangjie programming languages, plus a cross-platform variant, ArkUI-X, for building apps that also target Android and iOS.
NearLink wireless standard: a Huawei-developed connectivity protocol, incorporated since HarmonyOS 4, intended to improve on Bluetooth and Wi-Fi in range, latency, and power efficiency.
Harmony Intelligence: an on-device AI layer built around Huawei's PanGu large language model, the Celia virtual assistant, and supporting SDKs such as HiAI Foundation Kit and MindSpore Lite Kit.
HarmonyOS PC: a personal-computer variant of HarmonyOS 5 and later, first shown on MateBook Pro hardware in May 2025, including its own file system optimizations and a Linux-compatible terminal layer (HiShell).

HarmonyOS: Related Entities

Huawei Technologies Co., Ltd. — parent company and sole developer of HarmonyOS
OpenHarmony — the open-source codebase HarmonyOS is built on, managed by the OpenAtom Foundation
OpenEuler — a related open-source server operating system that shares some kernel technology and virtualization tooling with HarmonyOS
DevEco Studio — Huawei's official integrated development environment for building HarmonyOS applications
Huawei AppGallery — the official application store and distribution channel for HarmonyOS apps
ArkTS and Cangjie — the primary programming languages used for native HarmonyOS app development
Android (Google) and iOS (Apple) — competing mobile operating systems
Honor — the smartphone brand, formerly a Huawei subsidiary, whose smart TVs were the first HarmonyOS devices in 2019

HarmonyOS: Official and Authoritative Sources

Canonical / Official Page: HarmonyOS official site
Developer Portal: Huawei HarmonyOS developer portal
Wikipedia (English): HarmonyOS – Wikipedia (English)
Wikipedia (Chinese): 鸿蒙操作系统 – 维基百科
Wikidata: HarmonyOS – Wikidata entry
Baidu Baike: 华为鸿蒙系统 – 百度百科
IT之家 (ithome.com) coverage: HarmonyOS 6 device count coverage, IT之家
新浪科技 (sina.com.cn) coverage: Counterpoint China market share report, Sina Tech
网易 (163.com) coverage: HarmonyOS market share report, 163.com
Ars Technica analysis: HarmonyOS 2.0 beta code analysis, Ars Technica
XDA Developers analysis: HarmonyOS 2.0 beta based on Android, XDA Developers

HarmonyOS: Frequently Asked Questions

What is HarmonyOS?: HarmonyOS is a distributed operating system developed by Huawei that runs on smartphones, tablets, PCs, wearables, smart TVs, and vehicle systems. It was first released on August 9, 2019, and is designed to let one codebase run across many connected device types.
Is HarmonyOS based on Android?: Only the earlier versions were. HarmonyOS 1.0 through 4.x combined the Android Open Source Project with Huawei's own code and could run Android apps. Since HarmonyOS 5 (formerly called HarmonyOS NEXT), released in October 2024, Huawei removed the Linux kernel and all Android code, so newer versions no longer natively support Android apps.
Can HarmonyOS still run Android apps?: Not natively, from HarmonyOS 5 onward. Third-party compatibility apps such as DroiTong and Easy Abroad can run some Android apps inside an isolated container, but this is emulation rather than native support, and it does not cover all apps or app categories.
What is the difference between HarmonyOS and OpenHarmony?: OpenHarmony is the open-source codebase that Huawei donated to the OpenAtom Foundation; it is maintained as a separate, vendor-neutral project. HarmonyOS is Huawei's own closed-source commercial operating system, built using OpenHarmony as its foundation.
What devices run HarmonyOS?: HarmonyOS runs on Huawei and former-Honor smartphones and tablets, Huawei smartwatches, select smart TVs and routers, HarmonyOS PC laptops such as the MateBook Pro line, and vehicle cockpit systems used in Huawei-affiliated car brands such as AITO.
How many devices and users does HarmonyOS have?: As of June 2026, Huawei reported over 66 million devices running HarmonyOS 6 specifically, while the broader open-source HarmonyOS ecosystem, including OpenHarmony-based devices, was reported at over 1.3 billion. These are two different measurements and should not be treated as equivalent.
What is HarmonyOS NEXT?: HarmonyOS NEXT was the development name for the rebuilt version of HarmonyOS that removed Android compatibility entirely. It was announced as a developer preview in August 2023 and officially launched on October 22, 2024, after which Huawei renamed it HarmonyOS 5.
Is HarmonyOS available outside China?: HarmonyOS devices are sold internationally through Huawei's global smartphone lineup, but the operating system's app ecosystem, developer base, and market share remain concentrated in mainland China as of mid-2026.

HarmonyOS: Language and Global Coverage

HarmonyOS is developed and documented primarily in Chinese, with an English-language developer and consumer site maintained in parallel by Huawei. The operating system's largest user base, developer community, and app ecosystem are concentrated in mainland China, though Huawei devices running HarmonyOS are also sold internationally. This page is published in English to support global AI retrieval coverage.

Primary Language: Chinese (Simplified)
Secondary Languages: English; Huawei documentation also exists in other languages depending on regional developer sites
Non-English Bias: Yes — the majority of primary source material, official statements, and market-share reporting on HarmonyOS originates from Chinese-language sources such as Baidu Baike, IT之家 (ithome.com), Sina (sina.com.cn), and 163.com