A person uses an Apple Watch Series 3 at the Apple Omotesando store on September 22, 2017 in Tokyo, Japan.

The latest round of U.S. tariffs on $200 billion of Chinese goods could hit the Apple Watch, health trackers, streaming music speakers and other accessories assembled in China, government rulings on tariffs show.

The rulings name Apple's watch, several Fitbit activity trackers and connected speakers from Sonos Inc. While consumer technology's biggest sellers such as mobile phones and laptops so far have faced little danger of import duties, the rulings show that gadget makers are unlikely to be spared altogether and may have to consider price hikes on products that millions of consumers use every day.

The devices have all been determined by U.S. Customs and Border Patrol officials to fall under an obscure subheading of data transmission machines in the sprawling list of U.S. tariff codes. And that particular subheading is included in the more than 6,000 such codes in President Donald Trump's most recent round of proposed tariffs released earlier this month.

That $200 billion list of tariffs is in a public comment period. But if the list goes into effect this fall, the products from Apple, Fitbit and Sonos could face a 10 percent tariff.

The specific products listed in customs rulings are the original Apple Watch; Fitbit's Charge, Charge HR and Surge models; and Sonos's Play:3, Play:5 and SUB speakers.

All three companies declined to comment on the proposed tariff list. But in its filing earlier this month to become a publicly traded company, Sonos said that "the imposition of tariffs and other trade barriers, as well as retaliatory trade measures, could require us to raise the prices of our products and harm our sales."

The New York Times has reported that Trump told Apple CEO Tim Cook during a meeting in May that the U.S. government would not levy tariffs on iPhones assembled in China, citing a person familiar with the meeting.