Similar to WatchOS
Micro Embbeded System
Microsoft Windows RT
Windows RTMULTOS
MULTOSOpenmoko Linux
Openmoko Linux
OS-9
OS-9PikeOS
PikeOS
RedHawk Linux
REX OS
REX OS
RIOT (オペレーティングシステム)
RIOT (operating system)
RT-Thread
RT-ThreadRTEMS
RTEMSSmalight OS
Symbian Foundation
Symbian Foundation
Symbian OS
Symbian
T-Engine
T-Kernel
T-Kernel
TOPPERS/ASPカーネル
TOPPERS/JSPカーネル
Toybox
Toybox
VxWorks
VxWorks
Windows Embedded
Windows IoTWindows Embedded Industry
Windows Embedded Industry
Windows Phone
Windows PhoneXiaomi HyperOS
Xiaomi HyperOS
Xinu
Xinu
Yocto Project
Yocto ProjectZephyr (オペレーティングシステム)
Zephyr (operating system)AliOS
AliOS