IHS says that LG Display is the world's leading AMOLED supplier for smartwatches and wearables. In 2017 LGD shipped 10.64 million AMOLED displays for smartwatches - and it holds a market share of 41.4% (the total market was 25.7 million units in 2017). LG is the exclusive supplier of AMOLED displays for Apple's watch.
Samsung Displays is the 2nd wearable AMOLED Producer, with a 34.8% market share. Everdisplay has a 16.2% share and AU Optronics shipped 5.7% of all wearable AMOLED shipments in 2017. BOE is the fifth largest AMOLED wearable maker with a market share of 1.5%.