Check out the list of devices under T-Mobile that will receive the Android 6.0 Marshmallow update eventually. Reuters

The Google I/O 2015 event was held in the previous week. During the event the search engine giant said the Android M OS will come with support for features like fingerprint sensor and USB-C. However, BGR claims that a Reddit user has spotted a mysterious smartphone in a video uploaded on the YouTube channel of Google Developers that looks like the Nexus 5 handset.

According to BGR, the mysterious Nexus 5 handset shows up when the video reaches the 0:48 second mark and displays information about "Native Fingerprint Support." What seems to be a modified version of the Nexus 5 supports newer features of Android M such as the fingerprint scanner and Android Pay for performing wireless transactions.

When the video reaches the 3:00 minutes mark, a red-colored Nexus 5-like smartphone can be seen. The original Nexus 5, which was released in 2013, did not feature fingerprint sensor but the red-colored smartphone is enabled with fingerprint button below the rear camera of the device.

BGR adds that Google is rumored to be working with LG and Huawei for building the Nexus 2015 smartphone. The forthcoming Nexus smartphone is expected to be an upgraded edition of the Nexus 5 smartphone. However, as of this writing, there is no confirmation that Google will design the next Nexus smartphone like the handset seen on the video.

A 9 to 5 Google report that was published in April claims that the Nexus 6 flagship from 2014 is not selling because of its hefty price tag. Another reason that there has been a decline in Nexus 6 sales is that unlike all the previous Nexus smartphone models, the 2014 model was a huge phablet device that may not interest all users.

According to Techno Buffalo, the Nexus 2015 smartphone will come with a 5.2-inch display, Snapdragon 808 chipset, and 2,700 mAh battery. As of this writing, Google has not confirmed anything about the next generation Nexus smartphone for 2015.

Source: YouTube / Google Developers