Apple CEO Tim Cook displays new iPhones during a product launch event at Apple's headquarters in California, the United States, Sept. 10, 2019. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday. (Photos: Xinhua)

Apple CEO Tim Cook speaks during a product launch event at Apple's headquarters in California, the United States, Sept. 10, 2019. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday.

Apple CEO Tim Cook speaks during a product launch event at Apple's headquarters in California, the United States, Sept. 10, 2019. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday.

People try out new iPhones during a product launch event at Apple's headquarters in California, the United States, Sept. 10, 2019. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday.

A man takes photos of the new iPhones after a product launch event at Apple's headquarters in California, the United States, Sept. 10, 2019. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday.

Apple CEO Tim Cook speaks during a product launch event at Apple's headquarters in California, the United States, Sept. 10, 2019. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday.

Photo taken on Sept. 10, 2019 shows Apple Watch products on display during a product launch event at Apple's headquarters in California, the United States. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday.

Apple CEO Tim Cook speaks during a product launch event at Apple's headquarters in California, the United States, Sept. 10, 2019. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday.

Apple CEO Tim Cook speaks during a product launch event at Apple's headquarters in California, the United States, Sept. 10, 2019. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday.

Apple CEO Tim Cook speaks during a product launch event at Apple's headquarters in California, the United States, Sept. 10, 2019. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday.

Apple CEO Tim Cook speaks during a product launch event at Apple's headquarters in California, the United States, Sept. 10, 2019. Apple Inc. announced a new line of iPhones, including iPhone 11 and Pro, iPads, Apple Watch 5 Series and other products and services at its major fall event in Northern California Tuesday.