Multiple companies have ideas as to how they'll develop folding smartphones. TCL, however, isn't content to settle on one -- it's seemingly tackling them all. CNET has obtained images and patent filings that show TCL exploring five foldable designs. Four of them are ultimately variants on a theme (folding horizontally or vertically, inward or outward), but a fifth model would turn into a smartwatch-style bracelet. Effectively, it'd resurrect Lenovo's Cplus concept as a practical product.