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Earlier we had expected that Samsung could embed fingerprint scanner below the display in Galaxy S8, but the time was too short for them, and ultimately sensor was positioned on the back alongside the primary camera. Then rumours began to articulate that it will appear in Note 8, but now one source dismissed that possibility as well.

According to Korean media, Note 8 to miss the opportunity to benefit from the innovative solution in which the fingerprint sensor is built invisibly into the display.

"Samsung tried all efforts to apply an on-screen display fingerprint sensor on the Note 8, but we decided not to feature it because of various technical difficulties, including security issues," a local media outlet reported last week, quoting a Samsung Electronics official.

Technical obstacles and in particular, the difficulty of integration of an integrated circuit in the sensor, which processes the information from a user, can not be transparent; thus there have been problems in security, says The Korea Herald.

The same difficulties have been experienced by Apple, which is rumoured to integrate TouchID under the screen of its iPhone 8.
Based on the leaked design of the upcoming iPhone, where the traditional home button is missing, we can speculate that the fingerprint sensor is processed beneath the screen.

However, this can lead to delays in the launch of the iPhone 8 in the market, while Samsung will unveil its Note Series in August.