Motorola brought in $1.25 billion in revenue in the quarter that ended June 30, about 10 percent of Google's total revenue. But Motorola also accounted for an operating loss of $233 million, which brought Google's total operating income down as a percent of its revenue by 6 percentage points.
Google's total revenue, including Motorola sales, was $12.21 billion compared to $9.02 billion a year earlier.
Google seems to be betting on expanding its foray into making devices.
In a statement, CEO Larry Page noted that the company had launched "a bunch of exciting products" at its recent I/O developers conference in San Francisco, including the Nexus 7 tablet.
"This quarter is also special because Motorola is now part of the Google family, and we're excited about the potential to build great devices for users," Page said.