With each new Samsung Galaxy flagship phone, the company is breaking records. On Thursday, Samsung announced the latest one: 10 million Galaxy S 4 sales in the first 30 days after launch. That figure is sales to retailers, not consumers, but it’s an accomplishment nonetheless. And strong U.S. sales should continue, as the Galaxy S 4 became available on Verizon(s vz)(s vod) today.

It’s interesting to see the time frame for each Galaxy smartphone to hit the 10 million sales number: It shows how much momentum Samsung has achieved in the past four years. It took seven months for the original Galaxy S to cross the 10 million units sold mark, while the Galaxy S 2 did so in five months. Last year’s Galaxy S 3 crossed the milestone in 50 days and now the current model has done the same in just a month.

All of this…