The Apple iPhone XR was the most popular phone of 2019, shipping more units than both its predecessor and its successor by a large margin, shows data by Omdia. Apple shipped 46.3 million XR phones last year and 23.1 million in 2018. The iPhone 11, the new Apple mid-ranger, managed 37.3 million shipments in 2019. That was only good enough for second place, but it's still millions more units than the iPhone 8, 8 Plus and X managed in 2018. Even with such good numbers, Apple's total shipments fell for a second consecutive year (down 4.6% in 2019 and 5.1% in 2018). Omdia attributes this to...