Samsung has released a teaser video for its Galaxy S5 launch, Digital Spy said.

Although the S5 has not been officially announced, the hints could not be clearer in the company's 36-second clip.

The South Korean giant will host an Unpacked event at the annual Mobile World Congress held in Barcelona on Monday (February 24), where it is expected to unveil its latest flagship device.

Words such as "wet" and "outdoor" crop up in the video, strengthening claims in a recent report that the handset will be water- and dust-proof.

Other widely-speculated features include a 2.5GHz quad-core chip, 3GB of RAM, a 5.25-inch QHD (2560 x 1440) Super AMOLED display, and a 20-megapixel camera, which appeared on a leaked specs sheet.