EMUI

Huawei EMUI
Developer	Huawei
OS family	AOSP (Linux, Unix-like), Classic HarmonyOS on OpenHarmony L3-L5 convergence
Working state	Current
Source model	Free software with proprietary components
Initial release	July 30, 2012
Latest release	EMUI 14.2 / April 25, 2024,
Update method	Firmware over-the-air
Package manager	Huawei AppGallery (2012 - present, both Global and China), ; APK files, .app (since EMUI 12)
Platforms	32 and 64-bit ARM
Kernel type	Multikernel, combination of Monolithic: modified Linux kernel; and HMOS TEE microkernel (since EMUI 12)
License	GNU General Public License v3,; Apache License 2.0,; Proprietary
Succeeded by	HarmonyOS (HarmonyOS NEXT), MagicOS 8
Official website	consumer.huawei.com/en/emui/ & www.hihonor.com/global/emui/

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EMUI (formerly known as Emotion UI, and also known as MagicOS (formerly known as Magic UI on Honor smartphones since 2019)^[1] is a HarmonyOS/Android (operating system) mobile operating system developed by Chinese technology company Huawei. It is used on the company's smartphones and tablet computers.

Instead of Google Mobile Services, EMUI devices have used Huawei Mobile Services, such as the Huawei AppGallery, since January 2020 due to United States sanctions imposed during the trade war against China in May 2019. From Version 13 (2022), Huawei additionally bundled the HarmonyOS TEE microkernel with the Android system; this microkernel for example handled identity security features such as the fingerprint authentication.^[2]

^ Wright, Arol (18 November 2019). "Android 10-based Magic UI 3.0 update rolls out for the Honor View 20 and Honor 20". XDA Developers. Retrieved 6 December 2019.
^ Barcza, Marton (30 June 2021). "How Huawei plans to take over (HarmonyOS explained)". YouTube. Retrieved 22 April 2023.