The sale began at midnight Pacific time and runs until Tuesday evening, offering cross-promotional sales from Whole Foods--which the group purchased in 2017--as well as celebrity endorsements from Mark Wahlberg, Jaden Smith, Kristen Bell, Hillary Duff, and Kobe Bryant, among others.
Jim Cramer weighed in on what he's keeping a close eye on when it comes to Amazon's big sale.
"I think you'd be shocked at the values," he said. "I think that one of the things that you always have to recognize is that they just, the prices that they offer are unbeatable. So once again--but remember I did say that Amazon should be sold at Prime day, not bought--and that's going to prove to be right."
Head on over to Real Money for more on Amazon and what Prime day means for the stock.