Abstract: A chain-shaped foldable cellphone capable of expanding functions and changing shape during usage comprises a mainframe module, a display module, more than one dual-spindle connecting block and an expansible module or an extensive module, wherein the extensive module is a complementary connector of the expansible module, and the neighboring ends of the two modules can be connected mutually while the distant ends thereof can be connected to one of the spindles of one dual-spindle connecting block respectively; by using the pivotal connection of the dual-spindle connecting block, the mainframe module is pivotally connected to the display module, and a plurality of extensive module and expansible module of various functions can be further pivotally connected to construct a chain-shaped foldable cellphone.

Abstract: A chain-shaped foldable cellphone capable of expanding functions and changing shape during usage comprises a mainframe module, a display module, more than one dual-spindle connecting block and an expansible module or an extensive module, wherein the extensive module is a complementary connector of the expansible module, and the neighboring ends of the two modules can be connected mutually while the distant ends thereof can be connected to one of the spindles of one dual-spindle connecting block respectively; by using the pivotal connection of the dual-spindle connecting block, the mainframe module is pivotally connected to the display module, and a plurality of extensive module and expansible module of various functions can be further pivotally connected to construct a chain-shaped foldable cellphone.

Abstract: A parallelogrammic foldable cellphone, capable of spreading and folding obversely or reversely to change the shape during usage, comprises four modular assemblies and four dual-spindle connecting blocks jointed pivotally, wherein a connecting end with a connecting recess and a pair of pivotal connecting parts is disposed respectively on the upper side and lower side of each of the modular assemblies, and wherein the corresponding connecting recess of the neighboring connecting ends of each two neighboring modular assemblies cooperatively receive one of the connecting blocks recess, and each spindle of the connecting block is pivotally connected to a pair of the pivotal connecting parts of one of the two neighboring modular assemblies respectively for pivotally connecting the two neighboring modular assemblies.

Abstract: A watch-like cell phone has a cell phone module, a strap module and one or more expandable modules connected between them for fitting the cell phone module to a user's wrists to serve as a watch model for displaying time or as a cell phone model for displaying information, receiving or transmitting information and receiving or sending voices, wherein the cell phone module has a main body comprising a rectangular LCD display and twelve numerical symbol input keys each arranged to a position surrounded on the perimeter of the rectangular LCD display and served as a one-hour hand sequentially from the first hour to the twelfth hour for an electronic clock shown on the rectangular LCD display when the cell phone module is in watch model.