The pause in sales is in response to orders from the International Trade Commission in October that found the device’s blood oxygen sensor had infringed on intellectual property from Masimo.
Apple will be prevented from importing the devices, which are manufactured in China.
This could make it more difficult for users to get repairs for existing watches by preventing swaps of broken older hardware not under warranty.
President Biden could still veto the ITC ban before Christmas, but a White House spokesperson said earlier this week that the decision would fall to U.S. Trade Representative Katherine Tai.