Phone Comparisons: Samsung Galaxy S21 Ultra vs OnePlus 9 ProStaff·April 6, 2021AndroidMobile DevicesNews & Reviews It’s time to compare the best of what Samsung and OnePlus have to offer, the Samsung Galaxy S21 Ultra vs OnePlus 9 Pro. The OnePlus 9 Pro launched quite Source: Phone Comparisons: Samsung Galaxy S21 Ultra vs OnePlus 9 Pro