[theuly]

I think it's the overall market for smart watches? For sure, it's not the next iPhone or iPad in terms of revenue.

Even in the smartwatch category, Apple isn't doing too well. Going from 70% in market share from last year to 41% this year. They're still the market leader, though.

source: http://money.cnn.com/2016/10/26/technology/smartwatch-sales-...

[npunt]

Same thing happened with iPhone after android devices started appearing, and iPads with android tablets. Market share has never been the metric that matters, because there will always be cheap high volume crap electronics that are disposed of and replaced frequently. Profit share is what matters, and Apple Watch is doing well there, just like iPhone and iPad.