Samsung released the most revealing teaser for its upcoming next-generation flagship smartphone, the Samsung Galaxy S6, days before its alleged release during this year's Mobile World Congress in Barcelona, Spain. 

Based on the latest teaser image released by T-Mobile, the rumored all-metallic body of the phone is finally confirmed. It means that the South Korean mobile manufacturing brand will finally omit its usual plastic and faux leather backs to give way to a sleeker metal finish. This is not the first time that the mobile phone manufacturer is releasing a device in an all-metal casing. Earlier this year, the full-metal Samsung Galaxy A3 and Samsung Galaxy A5 came out with the company's new design. 

T-Mobile's Samsung Galaxy S6 teaser, which is posted in the network carrier's sign-up page to get updates for the upcoming mobile device, also proved that the earlier speculations about the edged screen of the smartphone are actually accurate. 

Following the footsteps of T-Mobile, rival network provider AT&T also posted the same teaser image with the "Six Appeal" tagline. But instead of using the magenta color featured in the T-Mobile ad, AT&T features its signature blue color to highlight their brand in the soon-to-be released Samsung product. 

As if the teaser image is not enough to make mobile device fans more excited, the South Korean mobile brand also unveiled a new video that confirms the design features of the next flagship Galaxy smartphone. The 45-second video declares that "Metals will flow. Borders will disappear. Colors will live. Reflections will be free." It definitely talks about the metal-clad design of the smartphone as well as the curved screen display with an anti-reflective function. 

The Samsung Galaxy S6 is expected to be revealed on March 1 during the company's press conference a day ahead of the 2015 MWC, while its rumored variant, the Samsung Galaxy S6 Edge, is allegedly coming out in April.