Tech giant Google has much more work to do if it wants to compete with Amazon's virtual assistant Alexa and its Echo speakers, CNBC's Jim Cramer said Wednesday.
The team-up came as Wal-Mart advances its e-commerce operations to compete with Amazon, which currently holds an edge in the voice-shopping market.
"I don't think Google Voice shopping is going to be as accurate as Amazon voice shopping," Cramer said on "Squawk on the Street."
"They have more work to do on voice. Voice is everything," he added. "Google Voice is not as good as I think people think it is."
Google did not immediately respond to a request for comment.