The Huawei Honor 6X was released back in 2016 on Android Marshmallow. It received the update to Nougat a few months later and is set for one final blaze, with confirmation on Huawei's forums touting a May 2018 Oreo rollout for the device.
https://www.notebookcheck.net/Huawei-P9-Mate-8-and-Honor-6X-set-to-receive-Oreo-updates-in-a-bit.290250.0.html