A supposed mystery smartphone has appeared in new photos taken on a subway train in China. There has been some speculation about what make and model the phone in the pictures is, with many plumping for either the upcoming Xiaomi Redmi K30 or K30 Pro. However, it is probable this could be a case of mistaken identity.
https://www.notebookcheck.net/Alleged-K30-series-smartphone-from-Xiaomi-caught-on-camera-but-it-s-more-likely-a-Redmi-herring.443055.0.html