Running the mobile giant's own homegrown operating system, the Samsung Z is facing yet another launch delay.
After launching the smartwatch last year using Google's Android, Samsung makes its own OS available for the device.
Samsung's first Tizen phone, expected to launch this week, was a no-show in Moscow.
There may be no Android, but Samsung's Z phone running its in-house Tizen operating system looks enough like the Galaxy S5's custom interface to easily get around.
Pricing not available
Company has been pushing the open-source OS -- an Android alternative -- in everything from wearables to TVs.
At the Tizen Developer Conference, Samsung unveiled a prototype television set running the open-source Tizen operating system.
A prototype of a TV based on the Tizen OS shows off the interface under development.
The Samsung Z is the company's first smartphone running the open-source Tizen operating system.
It may not run Android, but this handset has Samsung written all over it.
The Korean electronics giant will show the phone at the Tizen Developer Conference, taking place this week in San Francisco.