Lite OS
DeveloperHuawei Technologies Co., Ltd.
Written inC, assembly language, Shell
OS familyReal-time operating system
Working stateDiscontinued
Source modelOpen source
Initial releaseMay 20, 2015; 8 years ago (2015-05-20)
Latest releaseV5.0 / December 2020; 3 years ago (2020-12)
Marketing targetInternet Of Things, Smartwatches
Influenced byUnix, FreeRTOS, Unix-like
LicenseBSD 3-clause
Succeeded byOpenHarmony

Huawei Lite OS is a discontinued lightweight real-time operating system (RTOS) developed by Huawei.[1] It is an open source, POSIX compliant operating system for Internet of things (IoT) devices, released under a three-clause BSD license.[2] Microcontrollers of different architectures such as ARM (M0/3/4/7, A7/17/53, ARM9/11), x86, and RISC-V are supported by the project. Huawei LiteOS is part of Huawei's '1+8+N' Internet of Things solution, and has been featured in a number of open source development kits and industry offerings.[3]

Smartwatches by Huawei and its former Honor brand run LiteOS.[4][5] LiteOS variants of kernels has since been incorporated into the IoT-oriented HarmonyOS with open source OpenHarmony.


On 20 May 2015, at the Huawei Network Conference, Huawei proposed the '1+2+1' Internet of Things solution and release the IoT operating system named Huawei LiteOS. It has been reported development of the real-time operating system goes back as far as 2012.[2][1]

Key features

Supported architectures

See also


  1. ^ a b c "Huawei LiteOS: Concept and Value". Huawei Technologies Co., Ltd. Archived from the original on 12 September 2018. Retrieved 12 September 2018.
  2. ^ a b c "Huawei's LiteOS Internet of Things operating system is a minuscule 10KB". BetaNews, Inc. 20 May 2015. Archived from the original on 25 November 2020. Retrieved 12 February 2021.((cite web)): CS1 maint: bot: original URL status unknown (link)
  3. ^ July 2020, Naushad K. Cherrayil 09. "Huawei's "1+8+N" strategy will be a big success in China as it has no competitors". TechRadar. Archived from the original on 24 June 2021. Retrieved 17 June 2021.((cite web)): CS1 maint: numeric names: authors list (link)
  4. ^ Ricker, Thomas (19 September 2019). "Huawei Watch GT 2 runs LiteOS and lasts up to two weeks". The Verge. Retrieved 3 February 2021.
  5. ^ "The Honor Magic Watch 2 is a great wearable, but LiteOS is too light". XDA Developers. 17 December 2019. Retrieved 3 February 2021.
  6. ^ "GigaDevice unveils the GD32V series with RISC-V core, in a brand new 32bit general purpose microcontroller". GigaDevice. 22 August 2019. Archived from the original on 29 August 2019. Retrieved 12 February 2021.