Huawei teamed up with Leica last year to put a Summarit lens in their Mate 9 smartphone. Whether it's noticeably different from other phones, I couldn't tell. But it's fun and have a few cool features that most will appreciate. I use it daily for all sorts of things and it's handy when you come across a scene and the M is left at home.
Black and White mode used to capture the two nuns sitting on top of Kronberg in Switzerland.