A firmware teardown by XDA-Developers has revealed details of Xiaomi's upcoming device, the Mi 6X. The Mi 5X—also the Mi A1—was an immensely popular device but the Mi 6X could fail to match its success, with what appears to be a downgrade in battery capacity, and the lack of a headphone jack.
https://www.notebookcheck.net/Details-of-the-Mi-6X-revealed-Snapdragon-660-on-show-headphone-jack-missing.298736.0.html