That being said, it seems that Google might have a new device in the works codename “Bisto”. This is according to a recent APK teardown of the beta version of the Google app, in which there have been several references made to a certain “Bisto”. It can’t be confirmed as to what Bisto might be, but it has been suggested that it could be a portable audio device.
This is because there is a string in the code in which notifications can be “read aloud inside your headphones”. There is also a string that references a preference setting to enable “Spoken notifications”. Could this be some kind of headphones that Google is launching, or maybe something else entirely?
There have been rumors in the past that in addition to a Google Glass successor, Google could also be working on an audio-based wearable. In any case it seems like it might be too early to tell, but with Google I/O 2017 taking place next month, maybe we will find out more then.