[Update: OnePlus 6 too] ARCore v1.3 appears to add support for OnePlus 5T, Android One, several Sony Xperia and Huawei phones, and more [APK Teardown]
(Android Police)

Update 1: 2018/06/19 11:29am PDT It looks like support for the OnePlus 6 may have also made its way into this release. Although the app listing on the Play Store is still set as incompatible The team behind AR at Google is working hard to bring support to an ever-growing number of phones. While the initial launch was limited to Pixel and S8 phones, it quickly grew beyond that number. Read More[Update: OnePlus 6 too] ARCore v1.3 appears to add support for OnePlus 5T, Android One, several Sony Xperia and Huawei phones, and more [APK Teardown] was written by the awesome team at Android Police.