Still using the OnePlus 3 or the OnePlus 3T handset, then here is some good news. The company has rolled out Oxygen OS 5.0.3 that will also add face unlock feature on the 3 and 3T.
OnePlus has rolled out OxygenOS 4.5.0 update via OTA for OnePlus 3 and OnePlus 3T devices. This latest update will bring some of key features that you get on OnePlus 5 handset. Apart from the new features the update also brings a lot optimizations.