|Developer||Huawei Technologies Co., Ltd.|
|Source model||Open source|
|Latest release||V5.0 / December 2020|
|Marketing target||Internet Of Things, Smartwatches|
Huawei LiteOS was a lightweight real-time operating system (RTOS) developed by Huawei. It is an open source, POSIX compliant operating system for Internet of things (IoT) devices, released under a three-clause BSD license. 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.
Smartwatches by Huawei and its former Honor brand run LiteOS. LiteOS 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.