According to IDC, vendors shipped a total of 11.4 million wearables in the first quarter of 2015, a more than two-fold jump from 3.8 million wearables shipped in the year-ago period.
"Bucking the post-holiday decline, normally associated with the first quarter, is a strong sign for the wearables market," IDC Research Manager (Wearables) Ramon Llamas said.
It demonstrates growing end-user interest and the vendors' ability to deliver a diversity of devices and experiences, he added.
FitBit led the market with 34.2 per cent share of shipment, followed by Xiaomi at 24.6 per cent and Garmin at 6.1 per cent.
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Samsung had a 5.3 per cent share, while Jawbone held 4.4 per cent of the wearables market.
"What remains to be seen is how Apple's arrival will change the landscape. The Apple Watch will likely become the device that other wearables will be measured against, fairly or not," Llamas said.
This will force the competition to up their game in order to stay on the leading edge of the market, he added.
Despite this price erosion, Apple's entrance with a product priced at the high-end of the spectrum will test consumers' willingness to pay a premium for a brand or product that is the centre of attention, he added.