The company had planned to start selling the phone, the Samsung Z, in Russia this quarter. But Samsung indicated that more time is needed to expand Tizen's following of app developers and apps.
In a brief statement, Samsung said the postponement is to further enhance the Tizen ecosystem, which encompasses developers, consumers and devices using the mobile OS.
The delay is a blow to Samsung's push to reduce reliance on Google's Android operating system, which powers Samsung's Galaxy smartphones and tablets. It did not announce a new release date.
About one third of smartphones are made by Samsung, but this ubiquity has not resulted in popularity for Samsung's app store which draws far fewer developers and users thanthoseof Apple or Google. Tizen has alreadysuffered years of delays.