The trend of revealing details of your flagship smartphone ahead of its official launch is becoming popular. First, we had LG showing us the case for its G5 smartphone before its unveiling at Mobile World Congress and now Samsung is doing the same, posting a promotional video showing off the Galaxy S7 Edge a week ahead of its launch Sunday.

The video, which is unlisted and therefore could have been posted accidentally, may be all part of Samsung's plan to promote the device. In the video, which doesn't name the Galaxy S7 Edge, the new smartphone is seen being used in a variety of situations, but the video is clearly aimed at showing that it is an all-action smartphone that can stand up to the rigors of the environment.

The video shows Indonesian Olympic archer Lilies Handayani using the phone during training in all weather conditions and the phone is clearly shown in use while it is raining, suggesting that rumors of the phone being waterproof are accurate. The phone is also shown charging wirelessly, meaning Samsung is continuing with the feature it introduced on the Galaxy S5.

Besides, the video confirms that Samsung has not tweaked the design of the new smartphone that much with the gold model seen in the video, matching the multiple leaked images and press renders that surfaced in the last couple of weeks.

An accompanying Samsung website features a set of teaser images that also suggest the waterproof features of the new phones. It also suggests that Samsung has focused on improving low light photography, as the image below indicates.

Samsung Galaxy S7 Camera The teaser images suggests Samsung is focusing on improving the low light performance of its new Galaxy S7 smartphones. Photo: Samsung

The Galaxy S7 is set to be unveiled officially on Sunday, Feb. 21, on the eve of the Mobile World Congress trade show in Barcelona, Spain, along with the Galaxy S7 Edge. The two phones are expected to feature cutting-edge hardware including the latest Snapdragon 820 chipset, 4GB of RAM, 32GB of internal  storage and support for microSD cards. 

According to multiple reports, the Galaxy S7 will feature a 5.2-inch screen while the Galaxy S7 Edge will feature a 5.5-inch screen, both of which will have a very sharp resolution of 2,560 x 1,440 pixels.