A popular case maker has already listed some cases for the next-generation Galaxy S6, tipping the smartphone's design ahead of its official debut.

Samsung is expected to take the wraps off its new flagship smartphone, presumably called the Galaxy S6, at the Mobile World Congress (MWC) 2015 trade show in early March. While we're still weeks away from the purported unveiling, anticipation is building up and more information is surfacing, hinting at what to expect.

The Samsung Galaxy S6 will reportedly boast major improvements on all fronts compared to its predecessor, the current Galaxy S5. When it comes to hardware, the Galaxy S6 is expected to pack powerful internals under the hood, delivering an impressive performance. According to rumors, however, Samsung also aims to impress with the new smartphone's design, as the Galaxy S5 received criticism in this department.

Case maker Spigen has now tipped the final design of the purported Galaxy S6, listing four cases for the smartphone on Amazon. This is not the first time that Spigen leaks cases for unannounced devices, as the case maker has previously revealed cases for the Nexus 5, the LG G3, the HTC One M8, the iPhone 6, and other devices before their official launch. On the other hand, Spigen's cases have not always proved to be true to the final design of the devices in question, so take this with a grain of salt.

At the same time, the design of the Galaxy S6 shown here is not fully visible, as the handset is wrapped in protective cases. Nevertheless, these renders do reveal a design similar to the Galaxy S5, at least on the front panel. The back panel, meanwhile, seems to show a relocated camera dual-LED flash, which now appears on the right instead of below the camera as with the current Galaxy S5.

It remains unclear just what build materials the Galaxy S6 will use, but previous rumors suggested the handset may sport at least a metal frame, if not a full-metal unibody.

Keep in mind that these Spigen cases for the upcoming Galaxy S6 may not show the final design of the smartphone, so it's best to take everything with a grain of salt.