MWC kicks off next week and we're expecting Samsung to launch the Galaxy S5. The hotly anticipated smartphone's rumoured fingerprint scanner has now been detailed.

Unpacked 5 will likely be where Samsung unveils the Galaxy S5 and a key feature will be its fingerprint scanner. A consistent source for Samsung related news, SamMobile has managed to obtain details on the technology.

See also: Samsung Galaxy S5: Release date, price, rumours, new features and leaked images.

For starters, the site is able to confirm the GS5 will indeed come with a fingerprint scanner. However, it won't be built into the screen as previously rumoured. It will be part of the physical home button in what sounds like a similar implementation as Apple's iPhone 5s.

Users will need to swipe their finger, base to tip, across the home button for it to scan. They will also need to make sure they keep their finger flat and scan at a moderate speed for it to work. It will also be supposedly sensitive to moisture so wet or sweaty fingers are unlikely to be scanned properly.

Read: New smartphones to expect at MWC 2014: What will Samsung, Sony, LG, HTC, Nokia and BlackBerry launch?

All these clauses for a successful scan make it sound much more complicated than the iPhone 5s which simply requires you to touch the home button. Samsung's Galaxy S5 will show you a real-time image of your fingerprint as you scan.

SamMobile says that Samsung has "implemented the use of fingerprint scanning throughout the operating system". Support for up to eight different fingerprints will be provided with the option to set different tasks or shortcuts to each. At least one must be used for unlocking the Galaxy S5 though.

Samsung's new flagship Galaxy S5 will also have a Personal Folder system and Private Mode. These will allow users to keep apps, widgets and content such as photos hidden. Opening and closing these folders or the Private Mode will be done with fingerprint scanner or regular security method.

The fingerprint scanner will also be able to sign you into different websites so you don't need to remember your username or password.

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