Nexus 5 camera's magnet ring for bigger, better lenses?

I read somewhere that you can get different lenses, like these, for the Nexus 5 thanks to a magnetic ring. Will those ones work?

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Apparently the Photojojo lenses do work on the Nexus 5 without using their rings that are sticky on one side and magnetic on the other.

I found this pic:


and this comment on reddit from photojojo