https://www.techradar.com/news/oneplus-6-will-offer-super-slo-mo-video-recording

The launch date for the OnePlus 6 is now officially May 16, and leaks, rumors and teasers about the phone keep coming, with the latest slip from OnePlus revealing a camera feature. 

A photo - first spotted by Mobigyaan - posted and then removed from OnePlus' official India website reveals the device will support super slow motion video recording.