The internet giant behind Android software for powering mobile devices also launched a madebygoogle.com web page that featured a playful animation that asked "Thinking about changing phones?" and then suggested waiting until October 4.

Invitations to the event in San Francisco also advised the curious to follow its @madebygoogle account at Twitter. The phrase was rolled out with the original Pixel to refer to the fact it was the first time Google created both the software and hardware of a smartphone.

The Google event will come shortly after Apple begins shipping new iPhone 8 models unveiled this week at an event at the company's new "spaceship" campus in Silicon Valley.

Read also: Google to stop supporting Nexus and Pixel devices

Apple also announced a 10th anniversary iPhone X, touting the new flagship device as the next generation of mobile computing.

The Apple handset starting $999 will be available starting November 3 in more than 50 markets.

Samsung last month unveiled a new model of its Galaxy Note with a similarly high price tag as it seeks to mount a renewed challenge to iPhones.

Pricing on a Pixel 2 remained to be seen, but the original handset competes in the premium segment of the market.

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