OnePlus has been putting a lot of effort in improving its camera experience of its flagship phones. The previous OnePlus flagships showed marked improvements over their predecessors, but still didn't gave the other flagships much of a competition. We pit the OnePlus 6's new 16-megapixel sensor against the Huawei P20 Pro and the Samsung Galaxy S9+, two phones that have already proven to have excellent cameras and at the same time, cost a lot more than the OnePlus 6 too. Can it compete against these flagships or even do a better job? We find out in our in-depth comparison.