Search-engine giant Google is expected to refresh its Pixel series with two new offerings -- Pixel 4 and 4 XL -- later in October, details of which have been leaked online.

According to the rumours, the Pixel 4 device would come with a square camera module at the back which would house a dual rear camera setup. 

This is new because until now, all Pixel models have only had a single camera sensor at the back.

The speculation also suggest that the phone would either have an in-display fingerprint sensor or a 3D face unlock module at the front, or both. 

The bottom edge of the phone seems to feature two external speakers with a USB-C port in between. 

In addition, it also appears that the Pixel 4 device would not feature any front-firing speakers like the previous Pixel models. 

The device would be powered by Snapdragon 855 chipset and run the upcoming Android Q operating system (OS). IANS