New details about the Google's upcoming smartphone lines, called Pixel and Pixel XL, have been released days before the devices' rumored unveiling in October.

After the TV ad was reportedly aired by Nest in the Netherlands and its pricing details were leaked, according to Android Police, another leaked image emerged to show how both devices will look like.

According to the report, the leaked images showed that both devices will come out with an aluminum finish. The upper portions appear to be lighter, and the glass part made it look smoother. The images also showed the fingerprint sensor of the devices, but several markings and IDs were pixelated to cover the area.

The leaked images came out just after reports claimed that the upcoming smartphone line from Google was accidentally featured in a Nest commercial. Based on the ad that was posted on YouTube, the smartphone used by the woman in the commercial looks very similar with the aluminum-colored Pixel phone due to the white glass panels located at the upper back portion. It also has a white front cover in the video.

While it is still unconfirmed if the device featured in the ad is really the rumored Google Pixel phone, it can be assumed that this could be the same smartphone since it has the same general design.

Another leaked detail about the upcoming Google Pixel and Pixel XL claimed that the 5-inch device will be sold for $649, while its bigger cousin, which comes with a 5.5-inch screen, will be a bit more expensive. However, it did not reveal how much the Google Pixel XL will actually cost.

Google has yet to confirm if the series of leaked information is valid, but both devices, which will reportedly replace the Nexus product lines, are rumored to be unveiled at a special event set by the tech firm on Tuesday, Oct. 4.