Fitbit extended its lead in the market for connected wearables in the second quarter amid a sharp drop in Apple Watch sales, a survey showed Tuesday.
Chinese electronics group Xiaomi was second with a market share of 14 percent, with modest sales growth of 2.5 percent, according to the survey.
Apple, which does not release official sales data for the smartwatch, captured just seven percent of the overall wearables market with 1.6 million units sold, according to IDC's estimate.
(Also see: Fitbit Says Sold 5.7 Million Devices in Q2 2016)
IDC analysts said the market is bifurcating between basic wearables with a single function and more complex devices that accept third-party applications and functions like communication and mobile payments.
IDC research manager Ramon Llamas said basic wearables accounted for 82.8 percent of sales, and more vendors continue to enter this space.
"Smart wearables, meanwhile, are still struggling to find their place in the market," Llamas said. "There is plenty of curiosity about what smart wearables -- particularly smartwatches -- can do, but they have yet to convince users that they are a must-have item."