https://www.techradar.com/news/truly-bezel-free-lenovo-z5-confirmed-to-be-launched-on-june-5

Rumblings have made their way around the internet over the last week surrounding the announcement of Lenovo's all-screen, notch-free Z5 smartphone, and while a June 14 launch was rumored, we now have an official reveal date: June 5, 2018. 

Lenovo vice president Chan Cheng made the device's reveal date official by posting the smartphone’s launch invite on the company's Weibo page.