(Yicai Global) Sept. 21 -- Tech giant Apple Inc.'s [NASDAQ:AAPL] new Apple Watch Series 3 has a flaw that causes malfunctions in LTE cellular connectivity when users log on to some public WiFi networks, the company said in a press briefing on Sept. 20.

The watch's cellular data function is a key selling point of the product, priced at USD399, which enables users to make voice calls and use data when their iPhone is not at hand.

Many users had pointed out that the product has poor cellular connectivity and battery life.

Apple's stock price fell 1.68 percent to USD156.07 on Sept. 20 after the news broke.