According to the IDC’s predictions, it seems that they believe that the Apple Watch will remain a dominant piece of tech in the wearables space until 2022, where it is predicted that its market share will then start to decline. As it stands the Apple Watch is said to command a market share of 44.4%, but the IDC’s predictions claim that will fall to 35.8% in 2022.
It is unclear why they think the Apple Watch’s market share will decline, but they believe it is because other platforms, like Google’s Wear OS, could eventually play catch up. Alternatively it is possible that much like the smartphone market, the wearables market could hit maturity by that point.
Or it could also be that like the smartphone market, there could be newer models that offer up similar features at a much lower price. Either way there is still about 3-4 years to go before we’ll know if the IDC’s predictions have come true, but who knows, maybe then Apple would have innovated enough to allow them to continue maintaining their lead, much like they have done in the tablet space with the iPad.